When developing software with Python, a basic approach is to install Python on your machine, install all your required libraries via the terminal and write all of the source code. This works fine for simple Python scripting projects.
After the end of lesson you will be able to learn Python basics-What Python is? Its releases. Where we can use Python? Python Features. Tokens, comments variables etc... In out next PPT you will learn how to input and get output in Python
Python is a high-level programming language that emphasizes code readability. It has a clear syntax and large standard library. Python can be used for system programming, GUIs, internet scripting, database programming, and more. Some key strengths of Python include being object-oriented, free, portable, powerful, easy to use and learn. Popular uses of Python include web development, scientific computing, and financial applications. The document provides an overview of Python fundamentals like data types, control flow statements, functions, classes, and modules.
This session is all about - the mechanism provided by Java Virtual Machine to reclaim heap space from objects which are eligible for Garbage collection.
This document provides an overview of object-oriented programming concepts in Python including objects, classes, inheritance, polymorphism, and encapsulation. It defines key terms like objects, classes, and methods. It explains how to create classes and objects in Python. It also discusses special methods, modules, and the __name__ variable.
NumPy is a library for working with multidimensional arrays and matrices in Python. It allows mathematical and logical operations on arrays to be performed. This tutorial explains the basics of NumPy, including its architecture, data types, array attributes, array creation, indexing and slicing, broadcasting, and array manipulation functions. The audience is those looking to learn the basics of NumPy, which is useful for algorithm developers. A basic understanding of Python is recommended.
This document introduces a Python programming course taught by Ghulam Mustafa Shoro at the University of Sindh. The course covers Python programming theory and lab work. It meets once a week for theory and once a week for lab. The textbook used is "Python for Everybody". The course aims to teach basic Python programming and covers chapters 1-5 of the textbook. Upon completing the course, students will be prepared for more advanced Python courses.
Python Tutorial | Python Tutorial for Beginners | Python Training | EdurekaEdureka!
This Edureka Python tutorial will help you in understanding the various fundamentals of Python programming with examples in detail. This Python tutorial helps you to learn following topics:
1. Introduction to Python
2. Who uses Python
3. Features of Python
4. Operators in Python
5. Datatypes in Python
6. Flow Control
7. Functions in Python
8. File Handling in Python
The document discusses regular expressions (RE) in Python. It introduces common RE methods like search(), findall(), match() and provides examples of using special characters like quantifiers, sequences and flags to extract information from strings and files. It also demonstrates how to retrieve data from HTML files using the urllib module and REs.
After the end of lesson you will be able to learn Python basics-What Python is? Its releases. Where we can use Python? Python Features. Tokens, comments variables etc... In out next PPT you will learn how to input and get output in Python
Python is a high-level programming language that emphasizes code readability. It has a clear syntax and large standard library. Python can be used for system programming, GUIs, internet scripting, database programming, and more. Some key strengths of Python include being object-oriented, free, portable, powerful, easy to use and learn. Popular uses of Python include web development, scientific computing, and financial applications. The document provides an overview of Python fundamentals like data types, control flow statements, functions, classes, and modules.
This session is all about - the mechanism provided by Java Virtual Machine to reclaim heap space from objects which are eligible for Garbage collection.
This document provides an overview of object-oriented programming concepts in Python including objects, classes, inheritance, polymorphism, and encapsulation. It defines key terms like objects, classes, and methods. It explains how to create classes and objects in Python. It also discusses special methods, modules, and the __name__ variable.
NumPy is a library for working with multidimensional arrays and matrices in Python. It allows mathematical and logical operations on arrays to be performed. This tutorial explains the basics of NumPy, including its architecture, data types, array attributes, array creation, indexing and slicing, broadcasting, and array manipulation functions. The audience is those looking to learn the basics of NumPy, which is useful for algorithm developers. A basic understanding of Python is recommended.
This document introduces a Python programming course taught by Ghulam Mustafa Shoro at the University of Sindh. The course covers Python programming theory and lab work. It meets once a week for theory and once a week for lab. The textbook used is "Python for Everybody". The course aims to teach basic Python programming and covers chapters 1-5 of the textbook. Upon completing the course, students will be prepared for more advanced Python courses.
Python Tutorial | Python Tutorial for Beginners | Python Training | EdurekaEdureka!
This Edureka Python tutorial will help you in understanding the various fundamentals of Python programming with examples in detail. This Python tutorial helps you to learn following topics:
1. Introduction to Python
2. Who uses Python
3. Features of Python
4. Operators in Python
5. Datatypes in Python
6. Flow Control
7. Functions in Python
8. File Handling in Python
The document discusses regular expressions (RE) in Python. It introduces common RE methods like search(), findall(), match() and provides examples of using special characters like quantifiers, sequences and flags to extract information from strings and files. It also demonstrates how to retrieve data from HTML files using the urllib module and REs.
F-strings provide a new, concise way to format strings in Python 3.6. They allow embedding expressions inside curly braces within a string that starts with f. This allows printing variables directly into a string without needing string formatting or .format() methods. F-strings are faster than older string formatting methods and make multiline strings easier to read by allowing expressions across multiple lines. Documentation on f-strings can be found in the Python docs glossary under "formatted string literal".
The document discusses various Python datatypes. It explains that Python supports built-in and user-defined datatypes. The main built-in datatypes are None, numeric, sequence, set and mapping types. Numeric types include int, float and complex. Common sequence types are str, bytes, list, tuple and range. Sets can be created using set and frozenset datatypes. Mapping types represent a group of key-value pairs like dictionaries.
This document provides an introduction to the Python programming language. It covers Python's background, syntax, types, operators, control flow, functions, classes, tools, and IDEs. Key points include that Python is a multi-purpose, object-oriented language that is interpreted, strongly and dynamically typed. It focuses on readability and has a huge library of modules. Popular Python IDEs include Emacs, Vim, Komodo, PyCharm, and Eclipse.
NumPy is a Python library used for working with multidimensional arrays and matrices for scientific computing. It allows fast operations on arrays through optimized C code and is the foundation of the Python scientific computing stack. NumPy arrays can be created in many ways and support operations like indexing, slicing, broadcasting, and universal functions. NumPy provides many useful features for linear algebra, Fourier transforms, random number generation and more.
This document provides an introduction to object oriented programming in Python. It discusses why OOP is useful, defines some key concepts like classes, objects, methods, and variables. It provides an example of modeling a Taxi using a Taxi class with attributes like driver name and methods like pickUpPassenger. It shows how to define a class, create objects from the class, and call methods on those objects. It also introduces the concept of class variables that are shared among all objects versus instance variables that are unique to each object.
Python is an interpreted, object-oriented, high-level programming language with dynamic semantics. Its high-level built in data structures, combined with dynamic typing and dynamic binding, make it very attractive for Rapid Application Development, as well as for use as a scripting or glue language to connect existing components together. Python's simple, easy to learn syntax emphasizes readability and therefore reduces the cost of program maintenance. Python supports modules and packages, which encourages program modularity and code reuse. The Python interpreter and the extensive standard library are available in source or binary form without charge for all major platforms, and can be freely distributed.
Kotlin InDepth Tutorial for beginners 2022Simplilearn
This tutorial by Simplilearn is based on Kotlin In-Depth Tutorial for 2022. This video is curated by industry experts based on the current IT standards and organized in the learning order. This Kotlin tutorial will help you with the fundamentals of kotlin programming language and also Android development with kotlin. This kotlin tutorial will guide you with critical skills, tips, and tricks required to be an expert in kotlin programming language.
In this tutorial, on the Kotlin tutorial, we will be learning about the important topics and basics of Kotlin language that one should know to understand Kotlin language. In this Kotlin tutorial for beginners, we will be learning about the Variables in Kotlin, String templates, if-else, and when statements. We will also learn about arrays, loops, ranges, and much more with help of hands-on examples.
This document provides an overview of key Python concepts:
1. Modules allow organizing Python code into files and namespaces. The file name is the module name with a .py extension.
2. Python code is compiled into bytecode cache files (.pyc) for improved performance. These files are platform independent.
3. Advanced optimizations can be applied to bytecode with command line flags, but may affect program functionality in rare cases.
4. Standard modules provide useful functions like dir() to inspect modules and packages for organizing code. Input/output, strings, files and exceptions are also covered.
Modules allow grouping of related functions and code into reusable files. Packages are groups of modules that provide related functionality. There are several ways to import modules and their contents using import and from statements. The document provides examples of creating modules and packages in Python and importing from them.
The document provides an introduction to Python programming. It discusses key concepts like variables, data types, operators, and sequential data types. Python is presented as an interpreted programming language that uses indentation to indicate blocks of code. Comments and documentation are included to explain the code. Various data types are covered, including numbers, strings, booleans, and lists. Operators for arithmetic, comparison, assignment and more are also summarized.
Introduction to Koltin for Android Part I Atif AbbAsi
Welcome to Android Basics in Kotlin! In this course, you'll learn the basics of building Android apps with the Kotlin programming language. Along the way, you'll develop a collection of apps to start your journey as an Android developer.
This document is the preface to the book "Python for Informatics: Remixing an Open Book". It discusses how the book was created by modifying the open source book "Think Python" by Allen B. Downey to have a stronger focus on data analysis and exploring information using Python. Key changes included replacing number examples with data examples, reorganizing topics to get to data analysis quicker, and adding new chapters on data-related Python topics like regular expressions, web scraping, and databases. The goal was to produce a text suitable for a first technology course with an informatics rather than computer science focus.
Here is a Python class with the specifications provided in the question:
class PICTURE:
def __init__(self, pno, category, location):
self.pno = pno
self.category = category
self.location = location
def FixLocation(self, new_location):
self.location = new_location
This defines a PICTURE class with three instance attributes - pno, category and location as specified in the question. It also defines a FixLocation method to assign a new location as required.
Spring Boot is a framework for creating stand-alone, production-grade Spring based applications that can be "just run". It takes an opinionated view of the Spring platform and third-party libraries so that new and existing Spring developers can quickly get started with minimal configuration. Spring Boot aims to get developers up and running as quickly as possible with features like embedded HTTP servers, automatic configuration, and opinions on structure and dependencies.
Youtube Link: https://youtu.be/woVJ4N5nl_s
** Python Certification Training: https://www.edureka.co/data-science-python-certification-course **
This Edureka PPT on 'Python Basics' will help you understand what exactly makes Python special and covers all the basics of Python programming along with examples.
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
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Facebook: https://www.facebook.com/edurekaIN/
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Effective Spring Transaction ManagementUMA MAHESWARI
This document discusses transaction management in Spring Framework. It explains what transactions are for and the ACID properties of atomicity, consistency, isolation, and durability. It describes programmatic and declarative transaction management in Spring and the various transaction attributes like propagation, isolation, rollback rules, timeout, and read-only. It provides examples of configuring transaction advisors and APIs for different attribute settings and discusses load-time weaving for managing transactions on non-Spring objects.
The document discusses Python virtual environments (virtualenv) and the pip package manager. It introduces virtualenv and pip, explains why they are useful tools for isolating Python environments and managing packages, and provides exercises for creating virtual environments, using pip to install/uninstall packages, creating your own pip packages, and sharing packages on PyPI. The goal is to help users understand and learn to use these tools in 90 minutes.
Maven is a build tool that can manage a project's build process, dependencies, documentation and reporting. It uses a Project Object Model (POM) file to store build configuration and metadata. Maven has advantages over Ant like built-in functionality for common tasks, cross-project reuse, and support for conditional logic. It works by defining the project with a POM file then running goals bound to default phases like compile, test, package to build the project.
The document discusses Bram Cohen's view that Python is a good language for maintainability as it has clean syntax, object encapsulation, good library support, and optional parameters, and then provides details about the history and features of the Python programming language such as being dynamically typed, having a large standard library, and being cross-platform.
This document provides an agenda and overview for an OpenShift workshop on Python development. The workshop will introduce OpenShift and demonstrate how to create Python applications using the OpenShift platform-as-a-service. Attendees will learn to create applications from the command line and web console, add databases like MongoDB, and use tools like Git for version control. The document outlines assumptions about attendees' experience and what will be covered, including supported technologies, available resources, and terminology for the workshop.
PowerPoint allows users to import various 3D model formats from files, the cloud, or a network. To insert a 3D model, select "Insert > 3D Models from a File..." which will open a window to search for and select a 3D file to insert. Users can then position and rotate the 3D model using the 3D control or selecting different view options. The pan and zoom tool also allows resizing or cropping the 3D model within a frame.
F-strings provide a new, concise way to format strings in Python 3.6. They allow embedding expressions inside curly braces within a string that starts with f. This allows printing variables directly into a string without needing string formatting or .format() methods. F-strings are faster than older string formatting methods and make multiline strings easier to read by allowing expressions across multiple lines. Documentation on f-strings can be found in the Python docs glossary under "formatted string literal".
The document discusses various Python datatypes. It explains that Python supports built-in and user-defined datatypes. The main built-in datatypes are None, numeric, sequence, set and mapping types. Numeric types include int, float and complex. Common sequence types are str, bytes, list, tuple and range. Sets can be created using set and frozenset datatypes. Mapping types represent a group of key-value pairs like dictionaries.
This document provides an introduction to the Python programming language. It covers Python's background, syntax, types, operators, control flow, functions, classes, tools, and IDEs. Key points include that Python is a multi-purpose, object-oriented language that is interpreted, strongly and dynamically typed. It focuses on readability and has a huge library of modules. Popular Python IDEs include Emacs, Vim, Komodo, PyCharm, and Eclipse.
NumPy is a Python library used for working with multidimensional arrays and matrices for scientific computing. It allows fast operations on arrays through optimized C code and is the foundation of the Python scientific computing stack. NumPy arrays can be created in many ways and support operations like indexing, slicing, broadcasting, and universal functions. NumPy provides many useful features for linear algebra, Fourier transforms, random number generation and more.
This document provides an introduction to object oriented programming in Python. It discusses why OOP is useful, defines some key concepts like classes, objects, methods, and variables. It provides an example of modeling a Taxi using a Taxi class with attributes like driver name and methods like pickUpPassenger. It shows how to define a class, create objects from the class, and call methods on those objects. It also introduces the concept of class variables that are shared among all objects versus instance variables that are unique to each object.
Python is an interpreted, object-oriented, high-level programming language with dynamic semantics. Its high-level built in data structures, combined with dynamic typing and dynamic binding, make it very attractive for Rapid Application Development, as well as for use as a scripting or glue language to connect existing components together. Python's simple, easy to learn syntax emphasizes readability and therefore reduces the cost of program maintenance. Python supports modules and packages, which encourages program modularity and code reuse. The Python interpreter and the extensive standard library are available in source or binary form without charge for all major platforms, and can be freely distributed.
Kotlin InDepth Tutorial for beginners 2022Simplilearn
This tutorial by Simplilearn is based on Kotlin In-Depth Tutorial for 2022. This video is curated by industry experts based on the current IT standards and organized in the learning order. This Kotlin tutorial will help you with the fundamentals of kotlin programming language and also Android development with kotlin. This kotlin tutorial will guide you with critical skills, tips, and tricks required to be an expert in kotlin programming language.
In this tutorial, on the Kotlin tutorial, we will be learning about the important topics and basics of Kotlin language that one should know to understand Kotlin language. In this Kotlin tutorial for beginners, we will be learning about the Variables in Kotlin, String templates, if-else, and when statements. We will also learn about arrays, loops, ranges, and much more with help of hands-on examples.
This document provides an overview of key Python concepts:
1. Modules allow organizing Python code into files and namespaces. The file name is the module name with a .py extension.
2. Python code is compiled into bytecode cache files (.pyc) for improved performance. These files are platform independent.
3. Advanced optimizations can be applied to bytecode with command line flags, but may affect program functionality in rare cases.
4. Standard modules provide useful functions like dir() to inspect modules and packages for organizing code. Input/output, strings, files and exceptions are also covered.
Modules allow grouping of related functions and code into reusable files. Packages are groups of modules that provide related functionality. There are several ways to import modules and their contents using import and from statements. The document provides examples of creating modules and packages in Python and importing from them.
The document provides an introduction to Python programming. It discusses key concepts like variables, data types, operators, and sequential data types. Python is presented as an interpreted programming language that uses indentation to indicate blocks of code. Comments and documentation are included to explain the code. Various data types are covered, including numbers, strings, booleans, and lists. Operators for arithmetic, comparison, assignment and more are also summarized.
Introduction to Koltin for Android Part I Atif AbbAsi
Welcome to Android Basics in Kotlin! In this course, you'll learn the basics of building Android apps with the Kotlin programming language. Along the way, you'll develop a collection of apps to start your journey as an Android developer.
This document is the preface to the book "Python for Informatics: Remixing an Open Book". It discusses how the book was created by modifying the open source book "Think Python" by Allen B. Downey to have a stronger focus on data analysis and exploring information using Python. Key changes included replacing number examples with data examples, reorganizing topics to get to data analysis quicker, and adding new chapters on data-related Python topics like regular expressions, web scraping, and databases. The goal was to produce a text suitable for a first technology course with an informatics rather than computer science focus.
Here is a Python class with the specifications provided in the question:
class PICTURE:
def __init__(self, pno, category, location):
self.pno = pno
self.category = category
self.location = location
def FixLocation(self, new_location):
self.location = new_location
This defines a PICTURE class with three instance attributes - pno, category and location as specified in the question. It also defines a FixLocation method to assign a new location as required.
Spring Boot is a framework for creating stand-alone, production-grade Spring based applications that can be "just run". It takes an opinionated view of the Spring platform and third-party libraries so that new and existing Spring developers can quickly get started with minimal configuration. Spring Boot aims to get developers up and running as quickly as possible with features like embedded HTTP servers, automatic configuration, and opinions on structure and dependencies.
Youtube Link: https://youtu.be/woVJ4N5nl_s
** Python Certification Training: https://www.edureka.co/data-science-python-certification-course **
This Edureka PPT on 'Python Basics' will help you understand what exactly makes Python special and covers all the basics of Python programming along with examples.
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
Instagram: https://www.instagram.com/edureka_learning/
Facebook: https://www.facebook.com/edurekaIN/
Twitter: https://twitter.com/edurekain
LinkedIn: https://www.linkedin.com/company/edureka
Castbox: https://castbox.fm/networks/505?country=in
Effective Spring Transaction ManagementUMA MAHESWARI
This document discusses transaction management in Spring Framework. It explains what transactions are for and the ACID properties of atomicity, consistency, isolation, and durability. It describes programmatic and declarative transaction management in Spring and the various transaction attributes like propagation, isolation, rollback rules, timeout, and read-only. It provides examples of configuring transaction advisors and APIs for different attribute settings and discusses load-time weaving for managing transactions on non-Spring objects.
The document discusses Python virtual environments (virtualenv) and the pip package manager. It introduces virtualenv and pip, explains why they are useful tools for isolating Python environments and managing packages, and provides exercises for creating virtual environments, using pip to install/uninstall packages, creating your own pip packages, and sharing packages on PyPI. The goal is to help users understand and learn to use these tools in 90 minutes.
Maven is a build tool that can manage a project's build process, dependencies, documentation and reporting. It uses a Project Object Model (POM) file to store build configuration and metadata. Maven has advantages over Ant like built-in functionality for common tasks, cross-project reuse, and support for conditional logic. It works by defining the project with a POM file then running goals bound to default phases like compile, test, package to build the project.
The document discusses Bram Cohen's view that Python is a good language for maintainability as it has clean syntax, object encapsulation, good library support, and optional parameters, and then provides details about the history and features of the Python programming language such as being dynamically typed, having a large standard library, and being cross-platform.
This document provides an agenda and overview for an OpenShift workshop on Python development. The workshop will introduce OpenShift and demonstrate how to create Python applications using the OpenShift platform-as-a-service. Attendees will learn to create applications from the command line and web console, add databases like MongoDB, and use tools like Git for version control. The document outlines assumptions about attendees' experience and what will be covered, including supported technologies, available resources, and terminology for the workshop.
PowerPoint allows users to import various 3D model formats from files, the cloud, or a network. To insert a 3D model, select "Insert > 3D Models from a File..." which will open a window to search for and select a 3D file to insert. Users can then position and rotate the 3D model using the 3D control or selecting different view options. The pan and zoom tool also allows resizing or cropping the 3D model within a frame.
The 21st century; oh, what a time to be alive! With the world at your fingertips, it is easier than ever to dream big. But the question is- where to begin? With a wide range of programming languages to choose from to begin with, this article isn’t a gimmick for Python. Through this piece of writing, we hope to open you up to the realities of the world of Python. We will let you know the reasons why should I learn Python programming, what are the benefits of learning Python, what can I do with Python programming language and how can I start a career in Python Programming.
Python standard library & list of important librariesgrinu
We know that a module is a file with some Python code, and a package is a directory for sub packages and modules. But the line between a package and a Python library is quite blurred.
A Python library is a reusable chunk of code that you may want to include in your programs/ projects. Compared to languages like C++ or C, a Python libraries do not pertain to any specific context in Python. Here, a ‘library’ loosely describes a collection of core modules. Essentially, then, a library is a collection of modules. A package is a library that can be installed using a package manager like rubygems or npm.
(a*3*b) = (5 * 3 * 2) = 30
(((a*b)-(b*b))/b)*(a*b) = (((5*2)-(2*2))/2)*(5*2) = ((10-4)/2)*(10) = 30
Since the values on both sides of the comparison operator < are equal, the expression (a*3*b) < (((a*b)-(b*b))/b)*(a*b) evaluates to False.
The PyConTW (http://tw.pycon.org) organizer wishes to improve the quality and quantity of the programming cummunities in Taiwan. Though Python is their core tool and methodology, they know it's worth to learn and communicate with wide-ranging communities. Understanding cultures and ecosystem of a language takes me about three to six months. This six-hour course wraps up what I - an experienced Java developer - have learned from Python ecosystem and the agenda of the past PyConTW.
你可以在以下鏈結找到中文內容:
http://www.codedata.com.tw/python/python-tutorial-the-1st-class-1-preface
How to write better bioinformatics software. Discussion on:
1) versioning software
2) pinning specific versions of required software
3) working in a fixed environment
4) using a revision control system
5) way to ship large pipelines with lots of dependencies
Developing In Python On Red Hat Platforms (Nick Coghlan & Graham Dumpleton)Red Hat Developers
Red Hat Software Collections, OpenShift and the Red Hat Container Development Kit open up many new possibilities for Python developers targeting Red Hat Enterprise Linux. At the same time, the wider Python ecosystem is undergoing two significant transitions - one being the ongoing migration from Python 2 to Python 3, and the other the shift to correctly validating HTTPS connections by default. In this session we will cover the currently available options for developing with Python on Red Hat platforms, as well as provide some insight into where things are headed in the context of the wider Python ecosystem.
Developing in Python on Red Hat Platforms (DevNation 2016)ncoghlan_dev
This document discusses using Python on Red Hat platforms. It covers:
- Deploying Python applications on OpenShift using Source-to-Image (S2I)
- Python base images for building applications
- Migrating existing apps from OpenShift 2 to 3
- Using Software Collections to run newer Python versions without impacting the system
- Modernizing the Python networking stack and defaulting HTTPS certificate verification
Getting started with Linux and Python by CaffeLihang Li
This document provides an introduction and overview of Linux, Python, and Caffe. It discusses the goals of becoming familiar with basic Linux commands, learning to read and modify simple Python code, and deploying Caffe on Linux by building it from source code and exploring examples. The document covers Linux fundamentals like open source software and basic commands. It introduces Python concepts such as variables, strings, lists, dictionaries, conditionals, and loops. It also provides an overview of building and running Caffe on Linux.
This document provides an introduction to the Python programming language. It discusses that Python is an object-oriented, high-level programming language designed by Guido van Rossum. The document then covers general Python concepts like case sensitivity, indentation, objects, scope, and namespaces. It explains some key advantages of using Python, such as its simple syntax, open source status, portability, lack of type restrictions, large standard libraries, and interpretive nature. Finally, it lists some common applications of Python, including web development, scientific computing, networking, and games.
Easy contributable internationalization process with Sphinx @ PyCon APAC 2016Takayuki Shimizukawa
Sphinx can extract paragraphs from sphinx document and store them into gettext format translation catalog files.
Gettext format translation catalog is easy to translate from one language to other languages.
Also Sphinx support internationalization by using such catalog files.
You can use your favorite editors or services to translate your sphinx docs.
In this slide, I'll explain 3 things; (1) entire process to translate sphinx docs. (2) automation mechanism for the process. (3) tips for writing docs and translating.
The document provides an introduction to the Python programming language. It discusses what Python is, why it is popular for data science, examples of major companies that use Python, its community and environment. It also covers installing Python via Anaconda on different operating systems, using Spyder as an integrated development environment, and writing a basic first Python program.
This document provides an overview of a session on introducing Python programming. It discusses the history and creators of Python, its features as a high-level, general purpose, multi-paradigm language. Examples are given of successful organizations using Python like Google, Mozilla, and CERN. Sample Python code is shown for word counting programs. Common questions about Python versions, development environments, debugging, and performance are addressed. Reasons for Python's readability and popularity over other languages are explored. References for further learning Python are provided.
(1) Python uses indentation rather than braces to indicate blocks of code for functions and control flow. All statements within a block must be indented the same amount.
(2) Python identifiers can consist of letters, numbers, and underscores but must start with a letter or underscore. Identifiers are case-sensitive.
(3) There are reserved words in Python that cannot be used as identifiers such as def, if, else, and, or, not, etc.
Conda: A Cross-Platform Package Manager for Any Binary Distribution (SciPy 2014)Aaron Meurer
Conda is a cross-platform package manager that can install any type of package, including Python packages, C libraries, R, and more. It addresses the "packaging problem" of dependencies and environment issues across platforms. Conda uses environments to isolate package installations and manages dependencies by using a SAT solver to resolve them before installing packages. Users can create their own conda packages using recipe files that specify metadata and build scripts.
A statistical model or a machine learning algorithm is said to have underfitting when a model is too simple to capture data complexities. It represents the inability of the model to learn the training data effectively result in poor performance both on the training and testing data. In simple terms, an underfit model’s are inaccurate, especially when applied to new, unseen examples. It mainly happens when we uses very simple model with overly simplified assumptions. To address underfitting problem of the model, we need to use more complex models, with enhanced feature representation, and less regularization.
A statistical model is said to be overfitted when the model does not make accurate predictions on testing data. When a model gets trained with so much data, it starts learning from the noise and inaccurate data entries in our data set. And when testing with test data results in High variance. Then the model does not categorize the data correctly, because of too many details and noise. The causes of overfitting are the non-parametric and non-linear methods because these types of machine learning algorithms have more freedom in building the model based on the dataset and therefore they can really build unrealistic models. A solution to avoid overfitting is using a linear algorithm if we have linear data or using the parameters like the maximal depth if we are using decision trees.
A recurrent neural network (RNN) is one of the two broad types of artificial neural network, characterized by direction of the flow of information between its layers. In contrast to the uni-directional feedforward neural network, it is a bi-directional artificial neural network, meaning that it allows the output from some nodes to affect subsequent input to the same nodes. Their ability to use internal state (memory) to process arbitrary sequences of inputs makes them applicable to tasks such as unsegmented, connected handwriting recognition[4] or speech recognition. The term "recurrent neural network" is used to refer to the class of networks with an infinite impulse response, whereas "convolutional neural network" refers to the class of finite impulse response. Both classes of networks exhibit temporal dynamic behavior. A finite impulse recurrent network is a directed acyclic graph that can be unrolled and replaced with a strictly feedforward neural network, while an infinite impulse recurrent network is a directed cyclic graph that can not be unrolled.
Additional stored states and the storage under direct control by the network can be added to both infinite-impulse and finite-impulse networks. The storage can also be replaced by another network or graph if that incorporates time delays or has feedback loops. Such controlled states are referred to as gated state or gated memory, and are part of long short-term memory networks (LSTMs) and gated recurrent units. This is also called Feedforward Neural Network (FNN). Recurrent neural networks are theoretically Turing complete and can run arbitrary programs to process arbitrary sequences of inputs.
Random Forest Algorithm widespread popularity stems from its user-friendly nature and adaptability, enabling it to tackle both classification and regression problems effectively. The algorithm’s strength lies in its ability to handle complex datasets and mitigate overfitting, making it a valuable tool for various predictive tasks in machine learning.
One of the most important features of the Random Forest Algorithm is that it can handle the data set containing continuous variables, as in the case of regression, and categorical variables, as in the case of classification. It performs better for classification and regression tasks. In this tutorial, we will understand the working of random forest and implement random forest on a classification task.
Principal Component Analysis(PCA) technique was introduced by the mathematician Karl Pearson in 1901. It works on the condition that while the data in a higher dimensional space is mapped to data in a lower dimension space, the variance of the data in the lower dimensional space should be maximum.
Principal Component Analysis (PCA) is a statistical procedure that uses an orthogonal transformation that converts a set of correlated variables to a set of uncorrelated variables.PCA is the most widely used tool in exploratory data analysis and in machine learning for predictive models. Moreover,
Principal Component Analysis (PCA) is an unsupervised learning algorithm technique used to examine the interrelations among a set of variables. It is also known as a general factor analysis where regression determines a line of best fit.
The main goal of Principal Component Analysis (PCA) is to reduce the dimensionality of a dataset while preserving the most important patterns or relationships between the variables without any prior knowledge of the target variables.
Principal Component Analysis (PCA) is used to reduce the dimensionality of a data set by finding a new set of variables, smaller than the original set of variables, retaining most of the sample’s information, and useful for the regression and classification of data.
The best known natural language processing tool is GPT-3, from OpenAI, which uses AI and statistics to predict the next word in a sentence based on the preceding words. NLP practitioners call tools like this “language models,” and they can be used for simple analytics tasks, such as classifying documents and analyzing the sentiment in blocks of text, as well as more advanced tasks, such as answering questions and summarizing reports. Language models are already reshaping traditional text analytics, but GPT-3 was an especially pivotal language model because, at 10x larger than any previous model upon release, it was the first large language model, which enabled it to perform even more advanced tasks like programming and solving high school–level math problems. The latest version, called InstructGPT, has been fine-tuned by humans to generate responses that are much better aligned with human values and user intentions, and Google’s latest model shows further impressive breakthroughs on language and reasoning.
For businesses, the three areas where GPT-3 has appeared most promising are writing, coding, and discipline-specific reasoning. OpenAI, the Microsoft-funded creator of GPT-3, has developed a GPT-3-based language model intended to act as an assistant for programmers by generating code from natural language input. This tool, Codex, is already powering products like Copilot for Microsoft’s subsidiary GitHub and is capable of creating a basic video game simply by typing instructions. This transformative capability was already expected to change the nature of how programmers do their jobs, but models continue to improve — the latest from Google’s DeepMind AI lab, for example, demonstrates the critical thinking and logic skills necessary to outperform most humans in programming competitions.
Models like GPT-3 are considered to be foundation models — an emerging AI research area — which also work for other types of data such as images and video. Foundation models can even be trained on multiple forms of data at the same time, like OpenAI’s DALL·E 2, which is trained on language and images to generate high-resolution renderings of imaginary scenes or objects simply from text prompts. Due to their potential to transform the nature of cognitive work, economists expect that foundation models may affect every part of the economy and could lead to increases in economic growth similar to the industrial revolution.
It is a classification technique based on Bayes’ Theorem with an independence assumption among predictors. In simple terms, a Naive Bayes classifier assumes that the presence of a particular feature in a class is unrelated to the presence of any other feature.
The Naïve Bayes classifier is a popular supervised machine learning algorithm used for classification tasks such as text classification. It belongs to the family of generative learning algorithms, which means that it models the distribution of inputs for a given class or category. This approach is based on the assumption that the features of the input data are conditionally independent given the class, allowing the algorithm to make predictions quickly and accurately.
In statistics, naive Bayes classifiers are considered as simple probabilistic classifiers that apply Bayes’ theorem. This theorem is based on the probability of a hypothesis, given the data and some prior knowledge. The naive Bayes classifier assumes that all features in the input data are independent of each other, which is often not true in real-world scenarios. However, despite this simplifying assumption, the naive Bayes classifier is widely used because of its efficiency and good performance in many real-world applications.
Moreover, it is worth noting that naive Bayes classifiers are among the simplest Bayesian network models, yet they can achieve high accuracy levels when coupled with kernel density estimation. This technique involves using a kernel function to estimate the probability density function of the input data, allowing the classifier to improve its performance in complex scenarios where the data distribution is not well-defined. As a result, the naive Bayes classifier is a powerful tool in machine learning, particularly in text classification, spam filtering, and sentiment analysis, among others.
For example, a fruit may be considered to be an apple if it is red, round, and about 3 inches in diameter. Even if these features depend on each other or upon the existence of the other features, all of these properties independently contribute to the probability that this fruit is an apple and that is why it is known as ‘Naive’.
An NB model is easy to build and particularly useful for very large data sets. Along with simplicity, Naive Bayes is known to outperform even highly sophisticated classification methods.
The field of artificial neural networks is often just called neural networks or multi-layer perceptrons after perhaps the most useful type of neural network. A perceptron is a single neuron model that was a precursor to larger neural networks.
It is a field that investigates how simple models of biological brains can be used to solve difficult computational tasks like the predictive modeling tasks we see in machine learning. The goal is not to create realistic models of the brain but instead to develop robust algorithms and data structures that we can use to model difficult problems.
The power of neural networks comes from their ability to learn the representation in your training data and how best to relate it to the output variable you want to predict. In this sense, neural networks learn mapping. Mathematically, they are capable of learning any mapping function and have been proven to be a universal approximation algorithm.
The predictive capability of neural networks comes from the hierarchical or multi-layered structure of the networks. The data structure can pick out (learn to represent) features at different scales or resolutions and combine them into higher-order features, for example, from lines to collections of lines to shapes.
Long short-term memory (LSTM) network is a recurrent neural network (RNN), aimed to deal with the vanishing gradient problem present in traditional RNNs. Its relative insensitivity to gap length is its advantage over other RNNs, hidden Markov models and other sequence learning methods. It aims to provide a short-term memory for RNN that can last thousands of timesteps, thus "long short-term memory". It is applicable to classification, processing and predicting data based on time series, such as in handwriting, speech recognition, machine translation, speech activity detection, robot control, video games, and healthcare.
A common LSTM unit is composed of a cell, an input gate, an output gate and a forget gate. The cell remembers values over arbitrary time intervals and the three gates regulate the flow of information into and out of the cell. Forget gates decide what information to discard from a previous state by assigning a previous state, compared to a current input, a value between 0 and 1. A (rounded) value of 1 means to keep the information, and a value of 0 means to discard it. Input gates decide which pieces of new information to store in the current state, using the same system as forget gates. Output gates control which pieces of information in the current state to output by assigning a value from 0 to 1 to the information, considering the previous and current states. Selectively outputting relevant information from the current state allows the LSTM network to maintain useful, long-term dependencies to make predictions, both in current and future time-steps.
linear regression is a linear approach for modelling a predictive relationship between a scalar response and one or more explanatory variables (also known as dependent and independent variables), which are measured without error. The case of one explanatory variable is called simple linear regression; for more than one, the process is called multiple linear regression. This term is distinct from multivariate linear regression, where multiple correlated dependent variables are predicted, rather than a single scalar variable. If the explanatory variables are measured with error then errors-in-variables models are required, also known as measurement error models.
In linear regression, the relationships are modeled using linear predictor functions whose unknown model parameters are estimated from the data. Such models are called linear models. Most commonly, the conditional mean of the response given the values of the explanatory variables (or predictors) is assumed to be an affine function of those values; less commonly, the conditional median or some other quantile is used. Like all forms of regression analysis, linear regression focuses on the conditional probability distribution of the response given the values of the predictors, rather than on the joint probability distribution of all of these variables, which is the domain of multivariate analysis.
Linear regression was the first type of regression analysis to be studied rigorously, and to be used extensively in practical applications.[4] This is because models which depend linearly on their unknown parameters are easier to fit than models which are non-linearly related to their parameters and because the statistical properties of the resulting estimators are easier to determine.
Linear regression has many practical uses. Most applications fall into one of the following two broad categories:
If the goal is error reduction in prediction or forecasting, linear regression can be used to fit a predictive model to an observed data set of values of the response and explanatory variables. After developing such a model, if additional values of the explanatory variables are collected without an accompanying response value, the fitted model can be used to make a prediction of the response.
If the goal is to explain variation in the response variable that can be attributed to variation in the explanatory variables, linear regression analysis can be applied to quantify the strength of the relationship between the response and the explanatory variables, and in particular to determine whether some explanatory variables may have no linear relationship with the response at all, or to identify which subsets of explanatory variables may contain redundant information about the response.
The K-Nearest Neighbors (KNN) algorithm is a robust and intuitive machine learning method employed to tackle classification and regression problems. By capitalizing on the concept of similarity, KNN predicts the label or value of a new data point by considering its K closest neighbours in the training dataset. In this article, we will learn about a supervised learning algorithm (KNN) or the k – Nearest Neighbours, highlighting it’s user-friendly nature.
What is the K-Nearest Neighbors Algorithm?
K-Nearest Neighbours is one of the most basic yet essential classification algorithms in Machine Learning. It belongs to the supervised learning domain and finds intense application in pattern recognition, data mining, and intrusion detection.
It is widely disposable in real-life scenarios since it is non-parametric, meaning, it does not make any underlying assumptions about the distribution of data (as opposed to other algorithms such as GMM, which assume a Gaussian distribution of the given data). We are given some prior data (also called training data), which classifies coordinates into groups identified by an attribute.
The Hidden Markov model (HMM) is a statistical model that was first proposed by Baum L.E. (Baum and Petrie, 1966) and uses a Markov process that contains hidden and unknown parameters. In this model, the observed parameters are used to identify the hidden parameters. These parameters are then used for further analysis. The HMM is a type of Markov chain. Its state cannot be directly observed but can be identified by observing the vector series. Since the 1980s, HMM has been successfully used for speech recognition, character recognition, and mobile communication techniques. It has also been rapidly adopted in such fields as bioinformatics and fault diagnosis. The basic principle of HMM is that the observed events have no one-to-one correspondence with states but are linked to states through the probability distribution. It is a doubly stochastic process, which includes a Markov chain as the basic stochastic process, and describes state transitions and stochastic processes that describe the statistical correspondence between the states and observed values. From the perspective of observers, only the observed value can be viewed, while the states cannot. A stochastic process is used to identify the existence of states and their characteristics. Thus, it is called a “hidden” Markov model.
Statistical methods are used to build state changes in HMM to understand the most possible trends in the surveillance data. HMM can automatically and flexibly adjust the trends, seasonal, covariant, and distributional elements. HMM has been used in many studies on time series surveillance data. For example, Le Strat and Carrat used a univariate HMM to handle influenza-like time series data in France. Additionally, Madigan indicated that HMM needed to include spatial information based on existing states.
One of the first uses of ensemble methods was the bagging technique. This technique was developed to overcome instability in decision trees. In fact, an example of the bagging technique is the random forest algorithm. The random forest is an ensemble of multiple decision trees. Decision trees tend to be prone to overfitting. Because of this, a single decision tree can’t be relied on for making predictions. To improve the prediction accuracy of decision trees, bagging is employed to form a random forest. The resulting random forest has a lower variance compared to the individual trees.
The success of bagging led to the development of other ensemble techniques such as boosting, stacking, and many others. Today, these developments are an important part of machine learning.
The many real-life machine learning applications show these ensemble methods’ importance. These applications include many critical systems. These include decision-making systems, spam detection, autonomous vehicles, medical diagnosis, and many others. These systems are crucial because they have the ability to impact human lives and business revenues. Therefore ensuring the accuracy of machine learning models is paramount. An inaccurate model can lead to disastrous consequences for many businesses or organizations. At worst, they can lead to the endangerment of human lives.
Convolutional neural network (CNN) is a regularized type of feed-forward neural network that learns feature engineering by itself via filters (or kernel) optimization. Vanishing gradients and exploding gradients, seen during backpropagation in earlier neural networks, are prevented by using regularized weights over fewer connections. For example, for each neuron in the fully-connected layer 10,000 weights would be required for processing an image sized 100 × 100 pixels. However, applying cascaded convolution (or cross-correlation) kernels, only 25 neurons are required to process 5x5-sized tiles. Higher-layer features are extracted from wider context windows, compared to lower-layer features.
CNNs are also known as Shift Invariant or Space Invariant Artificial Neural Networks (SIANN), based on the shared-weight architecture of the convolution kernels or filters that slide along input features and provide translation-equivariant responses known as feature maps. Counter-intuitively, most convolutional neural networks are not invariant to translation, due to the downsampling operation they apply to the input.
Feed-forward neural networks are usually fully connected networks, that is, each neuron in one layer is connected to all neurons in the next layer. The "full connectivity" of these networks make them prone to overfitting data. Typical ways of regularization, or preventing overfitting, include: penalizing parameters during training (such as weight decay) or trimming connectivity (skipped connections, dropout, etc.) Robust datasets also increases the probability that CNNs will learn the generalized principles that characterize a given dataset rather than the biases of a poorly-populated set.
Convolutional networks were inspired by biological processes in that the connectivity pattern between neurons resembles the organization of the animal visual cortex. Individual cortical neurons respond to stimuli only in a restricted region of the visual field known as the receptive field. The receptive fields of different neurons partially overlap such that they cover the entire visual field.
CNNs use relatively little pre-processing compared to other image classification algorithms. This means that the network learns to optimize the filters (or kernels) through automated learning, whereas in traditional algorithms these filters are hand-engineered. This independence from prior knowledge and human intervention in feature extraction is a major advantage.
Artificial neural networks (ANNs, also shortened to neural networks (NNs) or neural nets) are a branch of machine learning models that are built using principles of neuronal organization discovered by connectionism in the biological neural networks constituting animal brains.
An ANN is based on a collection of connected units or nodes called artificial neurons, which loosely model the neurons in a biological brain. Each connection, like the synapses in a biological brain, can transmit a signal to other neurons. An artificial neuron receives signals then processes them and can signal neurons connected to it. The "signal" at a connection is a real number, and the output of each neuron is computed by some non-linear function of the sum of its inputs. The connections are called edges. Neurons and edges typically have a weight that adjusts as learning proceeds. The weight increases or decreases the strength of the signal at a connection. Neurons may have a threshold such that a signal is sent only if the aggregate signal crosses that threshold.
Typically, neurons are aggregated into layers. Different layers may perform different transformations on their inputs. Signals travel from the first layer (the input layer), to the last layer (the output layer), possibly after traversing the layers multiple times.
This document provides an overview of reinforcement learning including:
1. It defines reinforcement learning as a type of machine learning that enables agents to learn through trial-and-error using feedback from their actions and experiences.
2. It discusses an example of AWS Deepracer, which is a tool for learning reinforcement learning by racing autonomous cars in a simulated environment.
3. It explains key concepts in reinforcement learning including Markov decision processes, states, actions, rewards, policies, and value functions which are used to attain optimal solutions.
Session on evaluation of DevSecOps. This tutorial is made the very basic process of the DevOps cycle for the beginner level. So sometimes we won’t use very deep technical terms to understand.
Artificial Intelligence: Classification, Applications, Opportunities, and Cha...Abdullah al Mamun
1. The document discusses various topics related to artificial intelligence including its definition, applications in different fields like agriculture, education, information technology and entertainment.
2. Key concepts discussed include machine learning, deep learning, neural networks, supervised and unsupervised learning, computer vision and natural language processing.
3. Applications of AI mentioned include image and speech recognition, predictive analysis, personalized learning, chatbots, targeted advertising and automated tasks to aid professionals.
The document discusses DevOps, which combines development (Dev) and operations (Ops). It describes the software development lifecycle (SDLC) and compares the waterfall and agile methodologies. The document then discusses using version control systems like Git and code repositories like GitHub for managing source code changes by large development teams. It also covers using containers and container orchestration with Docker to deploy and manage applications. Finally, it discusses using configuration management to define and control an application's environment and dependencies throughout its lifecycle.
Elon Musk believes that AI poses a fundamental risk to human civilization. The document then provides explanations of different types of AI like artificial neural networks, convolutional neural networks, recurrent neural networks, supervised learning, unsupervised learning, and reinforcement learning. It gives examples of applications for each type and compares human intelligence and learning to AI systems. In the end, the document asks if AI is really a threat to humans according to the definition of AI provided.
An approach to empirical Optical Character recognition paradigm using Multi-L...Abdullah al Mamun
An artificial neural network approach to optical character recognition (OCR) is presented using a multi-layer perceptron model. The model acquires an image, preprocesses it through steps like grayscale conversion and segmentation, extracts features by mapping characters to matrices, then trains a neural network to classify characters. Experimental results show 91.53% accuracy for isolated characters and 80.65% for characters in sentences.
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Learn about the latest innovations in and around OpenUI5/SAPUI5: UI5 Tooling, UI5 linter, UI5 Web Components, Web Components Integration, UI5 2.x, UI5 GenAI.
Recording:
https://www.youtube.com/live/MSdGLG2zLy8?si=INxBHTqkwHhxV5Ta&t=0
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Preparing non-technical founders before engaging a tech agency is crucial for the success of their projects. It starts with clearly defining their vision and goals, conducting thorough market research, and gaining a basic understanding of relevant technologies. Setting realistic expectations and preparing a detailed project brief are essential steps. Founders should select a tech agency with a proven track record and establish clear communication channels. Additionally, addressing legal and contractual considerations and planning for post-launch support are vital to ensure a smooth and successful collaboration. This preparation empowers non-technical founders to effectively communicate their needs and work seamlessly with their chosen tech agency.Visit our site to get more details about this. Contact us today www.ishtechnologies.com.au
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IBM watsonx Code Assistant for Z, our latest Generative AI-assisted mainframe application modernization solution. Mainframe (IBM Z) application modernization is a topic that every mainframe client is addressing to various degrees today, driven largely from digital transformation. With generative AI comes the opportunity to reimagine the mainframe application modernization experience. Infusing generative AI will enable speed and trust, help de-risk, and lower total costs associated with heavy-lifting application modernization initiatives. This document provides an overview of the IBM watsonx Code Assistant for Z which uses the power of generative AI to make it easier for developers to selectively modernize COBOL business services while maintaining mainframe qualities of service.
Consistent toolbox talks are critical for maintaining workplace safety, as they provide regular opportunities to address specific hazards and reinforce safe practices.
These brief, focused sessions ensure that safety is a continual conversation rather than a one-time event, which helps keep safety protocols fresh in employees' minds. Studies have shown that shorter, more frequent training sessions are more effective for retention and behavior change compared to longer, infrequent sessions.
Engaging workers regularly, toolbox talks promote a culture of safety, empower employees to voice concerns, and ultimately reduce the likelihood of accidents and injuries on site.
The traditional method of conducting safety talks with paper documents and lengthy meetings is not only time-consuming but also less effective. Manual tracking of attendance and compliance is prone to errors and inconsistencies, leading to gaps in safety communication and potential non-compliance with OSHA regulations. Switching to a digital solution like Safelyio offers significant advantages.
Safelyio automates the delivery and documentation of safety talks, ensuring consistency and accessibility. The microlearning approach breaks down complex safety protocols into manageable, bite-sized pieces, making it easier for employees to absorb and retain information.
This method minimizes disruptions to work schedules, eliminates the hassle of paperwork, and ensures that all safety communications are tracked and recorded accurately. Ultimately, using a digital platform like Safelyio enhances engagement, compliance, and overall safety performance on site. https://safelyio.com/
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A neural network is a machine learning program, or model, that makes decisions in a manner similar to the human brain, by using processes that mimic the way biological neurons work together to identify phenomena, weigh options and arrive at conclusions.
5. Local Machine
Python v3.5.9
Globally Third Party Library
Numpy 1.18.1
SciPy 1.9.1
Scikit-learn 1.1.2
TensorFlow 2.9.0
Pandas 1.4.4
Matplotlib 3.5.3
Plotly 1.2.0
Seaborn 0.11.2
Open CV 4.5.2
Scikit-Image 0.19.2
Mahotas 1.4.13
Matplotlib 3.5.3
And So on…
Application-A
Python v3.5.9
Third Party Library
Numpy 1.18.1
SciPy 1.9.1
6. Local Machine
Python v3.6.7
Globally Third Party Library
Numpy 1.2.0
SciPy 1.2.1
Scikit-learn 1.3.1
TensorFlow 2.9.0
Pandas 1.9.4
Matplotlib 3.5.8
Plotly 1.4.0
Seaborn 0.13.2
Open CV 4.6.1
Scikit-Image 0.20.2
Mahotas 1.7.1
Matplotlib 3.5.4
And So on…
Application-A
Python v3.5.9
Third Party Library
Numpy 1.18.1
SciPy 1.9.1
7. Local Machine
Python v3.7.1
Globally Third Party Library
Numpy 1.2.5
SciPy 2.2.1
Scikit-learn 2.3.1
TensorFlow 2.10.0
Pandas 1.10.1
Matplotlib 3.7.8
Plotly 1.8.0
Seaborn 0.17.1
Open CV 4.8.1
Scikit-Image 0.21.1
Mahotas 1.8.1
Matplotlib 3.6.4
And So on…
Application-A
Python v3.5.9
Third Party Library
Numpy 1.18.1
SciPy 1.9.1
8. Local Machine
Python v3.7.4
Globally Third Party Library
Numpy 1.2.6
SciPy 2.3.1
Scikit-learn 3.3.1
TensorFlow 3.0.1
Pandas 1.10.1
Matplotlib 3.8.1
Plotly 1.8.3
Seaborn 0.19.1
Open CV 4.9.1
Scikit-Image 0.22.0
Mahotas 1.9.1
Matplotlib 3.7.3
And So on…
Application-A
Python v3.5.9
Third Party Library
Numpy 1.18.1
SciPy 1.9.1
9. Local Machine
Python v3.8.1
Globally Third Party Library
Numpy 1.3.2
SciPy 3.1.1
Scikit-learn 4.3.0
TensorFlow 3.5.1
Pandas 1.11.0
Matplotlib 3.9.1
Plotly 1.10.2
Seaborn 0.20.0
Open CV 5.2.1
Scikit-Image 1.10.0
Mahotas 2.0.1
Matplotlib 3.9.1
And So on…
Application-A
Python v3.5.9
Third Party Library
Numpy 1.18.1
SciPy 1.9.1
10. Local Machine
Python v3.8.5
Globally Third Party Library
Numpy 2.1.2
SciPy 3.2.1
Scikit-learn 5.0.1
TensorFlow 3.7.1
Pandas 1.13.0
Matplotlib 4.0.1
Plotly 1.13.1
Seaborn 0.21.0
Open CV 5.8.2
Scikit-Image 1.12.1
Mahotas 2.3.1
Matplotlib 3.0.2
And So on…
Application-A
Python v3.5.9
Third Party Library
Numpy 1.18.1
SciPy 1.9.1
11. Local Machine
Python v3.5.9
Globally Third Party Library
Numpy 1.18.1
SciPy 1.9.1
Scikit-learn 1.1.2
TensorFlow 2.9.0
Pandas 1.4.4
Matplotlib 3.5.3
Plotly 1.2.0
Seaborn 0.11.2
Open CV 4.5.2
Scikit-Image 0.19.2
Mahotas 1.4.13
Matplotlib 3.5.3
And So on…
Application-A
Python v3.5.9
Third Party Library
Numpy 1.18.1
SciPy 1.9.1
Application-B
Python v3.7.10
Third Party Library
Numpy 1.23.2
TensorFlow 2.9.0
Virtual Environment
Virtual Environment
12. Virtual Environment
A virtual environment is a Python environment
such that the Python interpreter, libraries and
scripts installed into it are isolated from those
installed in other virtual environments, and (by
default) any libraries installed in a “system”
Python, i.e., one which is installed as part of your
operating system.
13. Local Machine
Python v3.5.9
Globally Third Party Library
Numpy 1.18.1
SciPy 1.9.1
Scikit-learn 1.1.2
TensorFlow 2.9.0
Pandas 1.4.4
Matplotlib 3.5.3
Plotly 1.2.0
Seaborn 0.11.2
Open CV 4.5.2
Scikit-Image 0.19.2
Mahotas 1.4.13
Matplotlib 3.5.3
And So on…
Application-A
Python v3.5.9
Third Party Library
Numpy 1.18.1
SciPy 1.9.1
Application-B
Python v3.7.10
Third Party Library
Numpy 1.23.2
TensorFlow 2.9.0
Virtual Environment
Virtual Environment
Python virtual environments give you the ability to isolate
your Python development projects from your system installed
Python and other Python environments. This gives you full
control of your project and makes it easily reproducible.
14. Each module is the preferred way to create and manage isolated virtual
environments.
Virtual Environments
venv virtualenv
venv is included in the Python
standard library and requires no
additional installation.
virtualenv is includes in the
Python standard library and
some others additional library
installation.
Editor's Notes
When developing software with Python, a basic approach is to install Python on your machine, install all your required libraries via the terminal and write all of your source code. This works fine for simple Python scripting projects.
But to implement complex software development projects, is required a Python interpreter, Python library, an API, or software development kit, often you will be working with multiple files, multiple packages, dependencies and as well as your source code. As a result, you will need to isolate your Python development environment for that particular project. This isolated environment is known as Virtual Environment. In this tutorial, I would like to present a clear explanation about Virtual Environment and how can you implement it on your python project.
For example, in your Local Machine you have installed Python 3.5.9. This Python version 3.5.9 is a Global Version for your computer.
As you know that python has thousands of “Third Party Library” such as Numpy 1.18.1, SciPy 1.9.1, Scikit-learn 1.1.2, TensorFlow 2.9.0, Pandas 1.4.4 and so on. You have installed anyone library as you want. I would like to called it “Global Third-Party Library”.
Now, you have created a python project “Application-A” by the Python version 3.5.9. And imagine, in your Local Machine you have installed Python 3.5.9. To implement this “Application-A”, you need to import some “Third Party Library” such Numpy version 1.18.1, SciPy version 1.9.1. You can import those “Third-Party Library” Numpy and SciPy from the “Globally installed Third-Party Library”. But problem is that with the over time being Python, Numpy and SciPy version can be changed. So “Application-A” source code can be interrupted if you update the Python, Numpy and SciPy.
Now, you have created a python project “Application-A” by the Python version 3.5.9. And imagine, in your Local Machine you have installed Python 3.5.9. To implement this “Application-A”, you need to import some “Third Party Library” such Numpy version 1.18.1, SciPy version 1.9.1. You can import those “Third-Party Library” Numpy and SciPy from the “Globally installed Third-Party Library”. But problem is that with the over time being Python, Numpy and SciPy version can be changed. So “Application-A” source code can be interrupted if you update the Python, Numpy and SciPy.
Now, you have created a python project “Application-A” by the Python version 3.5.9. And imagine, in your Local Machine you have installed Python 3.5.9. To implement this “Application-A”, you need to import some “Third Party Library” such Numpy version 1.18.1, SciPy version 1.9.1. You can import those “Third-Party Library” Numpy and SciPy from the “Globally installed Third-Party Library”. But problem is that with the over time being Python, Numpy and SciPy version can be changed. So “Application-A” source code can be interrupted if you update the Python, Numpy and SciPy.
Now, you have created a python project “Application-A” by the Python version 3.5.9. And imagine, in your Local Machine you have installed Python 3.5.9. To implement this “Application-A”, you need to import some “Third Party Library” such Numpy version 1.18.1, SciPy version 1.9.1. You can import those “Third-Party Library” Numpy and SciPy from the “Globally installed Third-Party Library”. But problem is that with the over time being Python, Numpy and SciPy version can be changed. So “Application-A” source code can be interrupted if you update the Python, Numpy and SciPy.
Now, you have created a python project “Application-A” by the Python version 3.5.9. And imagine, in your Local Machine you have installed Python 3.5.9. To implement this “Application-A”, you need to import some “Third Party Library” such Numpy version 1.18.1, SciPy version 1.9.1. You can import those “Third-Party Library” Numpy and SciPy from the “Globally installed Third-Party Library”. But problem is that with the over time being Python, Numpy and SciPy version can be changed. So “Application-A” source code can be interrupted if you update the Python, Numpy and SciPy.
Now, you have created a python project “Application-A” by the Python version 3.5.9. And imagine, in your Local Machine you have installed Python 3.5.9. To implement this “Application-A”, you need to import some “Third Party Library” such Numpy version 1.18.1, SciPy version 1.9.1. You can import those “Third-Party Library” Numpy and SciPy from the “Globally installed Third-Party Library”. But problem is that with the over time being Python, Numpy and SciPy version can be changed. So “Application-A” source code can be interrupted if you update the Python, Numpy and SciPy.
Consider another scenario, you have created another Python project “Application-B” by the Python version 3.7.10. In your Local Machine installed Python version is 3.5.9. And need to import “Third Party Library” such Numpy version 1.23.2, TensorFlow version 2.9.0. Here you can’t import globally installed Numpy third party library because of version mismatch. But can be import globally installed TensorFlow third party library as both version is same.
Python virtual environments give you the ability to isolate your Python development projects from your system installed Python and other Python environments. This gives you full control of your project and makes it easily reproducible.
Now time to implement the virtual environment for your python project. Here I would like to know you that virtual environment manager: either venv or virtualenv for Python. Each module is the preferred way to create and manage isolated virtual environments. venv is included in the Python standard library and requires no additional installation. Whereas virtualenv is includes in the Python standard library and some others additional library installation.