This document provides an introduction to programming with Python. It discusses what Python is, how to install it, and how to write basic Python programs. It then covers key Python concepts like variables, data types, conditionals, loops, functions, modules, and more. Code examples are provided throughout to demonstrate the various Python constructs. The document is intended to teach programming fundamentals to beginners using the Python language.
Marko Heijnen discussed creating native mobile apps with WordPress. He explained that mobile is growing and developers may want to create native apps. The API currently uses XML-RPC but JSON is an alternative. Developers need to communicate with mobile developers to build an API and additional fields. Methods like getRecentPosts retrieve post data. Plugins like JSON API can be used to support JSON. Developers should return minimal data and cache responses. Special post types and admin pages can manage mobile content and push notifications. WordPress is flexible and can power mobile apps.
This document provides an introduction to PHP sessions. It explains that PHP sessions allow a website to store and display user information, determine user groups, and manage permissions. Sessions are important for these features. The document notes that cookies are becoming less reliable due to increasing browser security and privacy settings, but PHP sessions can achieve similar functionality as cookies in a way that does not store data locally on user devices.
Loops execute a block of code a specified number of times, or while a specified condition is true.
Often when you write code, you want the same block of code to run over and over again in a row. Instead of adding several almost equal lines in a script we can use loops to perform a task like this.
In PHP, we have the following looping statements:
while - loops through a block of code while a specified condition is true
do...while - loops through a block of code once, and then repeats the loop as long as a specified condition is true
for - loops through a block of code a specified number of times
foreach - loops through a block of code for each element in an array
PHP functions allow programmers to divide code into reusable pieces. There are three main types of functions: simple functions that don't take arguments, functions with parameters that allow passing data into the function, and functions with return values that return data out of the function. Functions make code more organized and reusable.
PHP stands for PHP: Hypertext Preprocessor
PHP is a server-side scripting language, like ASP
PHP scripts are executed on the server
PHP supports many databases (MySQL, Informix, Oracle, Sybase, Solid, PostgreSQL, Generic ODBC, etc.)
PHP is an open source software
PHP is free to download and use
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php 2 Function creating, calling,PHP built-in functiontumetr1
The document discusses PHP functions, including how to create and call custom functions, and examples of useful built-in PHP functions. It explains that functions allow reusable blocks of code and built-in functions are pre-made and do not need to be created. Examples are provided for creating functions that take parameters and return values, as well as calling functions. Common built-in functions are also described, such as trim(), explode(), implode(), and print_r() which operate on strings and arrays.
This document contains a practice exam with 18 multiple choice questions about PHP functions and concepts. It is registered to Núria Torrescasana of Manresa, Barcelona, Spain. The questions cover topics like PHP functions, arrays, classes, sessions, strings, dates/time, and file handling. The answers to the questions are provided at the end.
Marko Heijnen discussed creating native mobile apps with WordPress. He explained that mobile is growing and developers may want to create native apps. The API currently uses XML-RPC but JSON is an alternative. Developers need to communicate with mobile developers to build an API and additional fields. Methods like getRecentPosts retrieve post data. Plugins like JSON API can be used to support JSON. Developers should return minimal data and cache responses. Special post types and admin pages can manage mobile content and push notifications. WordPress is flexible and can power mobile apps.
This document provides an introduction to PHP sessions. It explains that PHP sessions allow a website to store and display user information, determine user groups, and manage permissions. Sessions are important for these features. The document notes that cookies are becoming less reliable due to increasing browser security and privacy settings, but PHP sessions can achieve similar functionality as cookies in a way that does not store data locally on user devices.
Loops execute a block of code a specified number of times, or while a specified condition is true.
Often when you write code, you want the same block of code to run over and over again in a row. Instead of adding several almost equal lines in a script we can use loops to perform a task like this.
In PHP, we have the following looping statements:
while - loops through a block of code while a specified condition is true
do...while - loops through a block of code once, and then repeats the loop as long as a specified condition is true
for - loops through a block of code a specified number of times
foreach - loops through a block of code for each element in an array
PHP functions allow programmers to divide code into reusable pieces. There are three main types of functions: simple functions that don't take arguments, functions with parameters that allow passing data into the function, and functions with return values that return data out of the function. Functions make code more organized and reusable.
PHP stands for PHP: Hypertext Preprocessor
PHP is a server-side scripting language, like ASP
PHP scripts are executed on the server
PHP supports many databases (MySQL, Informix, Oracle, Sybase, Solid, PostgreSQL, Generic ODBC, etc.)
PHP is an open source software
PHP is free to download and use
Php mysql classes in navi-mumbai,php-mysql course provider-in-navi-mumbai,bes...anshkhurana01
php-mysql classes in navi-mumbai,php-mysql course-provider-in-navi-mumbai,best php-mysql class in navi-mumbai
B2/6/2 Vashi ,Navi Mumbai, Contact:09892900103/9892900173 enquiry@vibrantgroup.co.in
php 2 Function creating, calling,PHP built-in functiontumetr1
The document discusses PHP functions, including how to create and call custom functions, and examples of useful built-in PHP functions. It explains that functions allow reusable blocks of code and built-in functions are pre-made and do not need to be created. Examples are provided for creating functions that take parameters and return values, as well as calling functions. Common built-in functions are also described, such as trim(), explode(), implode(), and print_r() which operate on strings and arrays.
This document contains a practice exam with 18 multiple choice questions about PHP functions and concepts. It is registered to Núria Torrescasana of Manresa, Barcelona, Spain. The questions cover topics like PHP functions, arrays, classes, sessions, strings, dates/time, and file handling. The answers to the questions are provided at the end.
PHP string function helps us to manipulate string in various ways. There are various types of string function available. Here we discuss some important functions and its use with examples.
This document discusses PHP includes and error handling. It provides information on the common PHP include functions like include(), include_once(), require(), and require_once(). It explains how includes work and some potential problems with includes like arbitrary local file includes triggered by malicious user input. The document also discusses PHP error types like informational errors, actionable errors, and fatal errors.
The document discusses the different types of operators in PHP including arithmetic, assignment, comparison, logical, increment/decrement, and conditional operators. It provides examples of how each operator is used and the output. The key operators covered are addition, subtraction, multiplication, division, modulus, equal, not equal, less than, greater than, logical and, logical or, increment, decrement, and ternary conditional operators.
This document discusses PHP functions and arrays. It defines PHP functions as reusable blocks of code that can be called repeatedly using the function name. User-defined functions in PHP start with the "function" keyword. Functions can accept arguments and return values. Arrays allow storing multiple values in a single variable and accessing them via numeric indexes. The document provides examples of creating, accessing, and looping through indexed arrays in PHP code.
This document provides an overview of PHP and MySQL. It defines PHP as a server-side scripting language that is commonly used with MySQL, an open-source database management system. The document discusses key PHP concepts like PHP files, variables, operators, conditional statements, arrays, loops, and functions. It also covers form handling in HTML and PHP. The intended audience is users looking to learn the basics of PHP and how it integrates with MySQL for database management.
This document provides an overview of different PHP conditional and loop statements including:
1. If, if/else, and if/elseif/else statements for executing code conditionally.
2. Switch statements for selecting code blocks to execute based on different cases.
3. Looping statements like while, do/while, for, and foreach for repeating code execution. Syntax and examples are given for each statement type.
PHP is a scripting language used for web development that allows developers to write dynamically generated web pages quickly. Key points about PHP include:
- PHP code must be contained within <?php ?> tags or <? ?> shorthand tags
- Files containing PHP code must have a .php extension
- Variables, operators, functions, and other PHP elements allow dynamic content and programming logic
- Functions can take parameters and return values
- Files and sessions allow sharing data across pages
1) Functions in Python allow for modular and reusable code. A function is defined using the def keyword followed by the function name and parameters.
2) Functions can take arguments, including default, required, keyword, and arbitrary arguments. They can also return single or multiple values.
3) Local variables exist only inside the function whereas global variables can be accessed inside and outside the function. The global keyword is used to modify global variables from within a function.
This document contains sample questions for the Zend Certification PHP 5 exam. It includes multiple choice questions testing PHP 5 language features and best practices related to topics like XML processing, database access, regular expressions, and security. The questions cover syntax, functions, patterns and other PHP concepts that could appear on the certification exam.
PHP Basics
This document provides an overview of PHP basics including comments, constants, data types, variables, output functions, superglobals, here documents, operators, and references. It discusses the syntax and usage of PHP comments, defines constants, lists the main data types, explains how to declare variables, compares print and echo output functions, outlines common superglobal variables, demonstrates here documents, and covers unary, arithmetic, assignment, comparison, logical, and ternary operators as well as references.
The document discusses various types of operators in PHP including arithmetic, assignment, comparison, increment/decrement, logical, string, and array operators. It provides examples of common operators like addition, subtraction, equality checking, concatenation and describes what each operator does.
The document provides an introduction to PHP, covering topics such as what PHP is, PHP files, why use PHP, PHP requests, the PHP development environment, PHP syntax, comments, mixing PHP with HTML, variables, operators, control structures like if/else statements, loops, functions, arrays, cookies, and sessions. PHP is introduced as a server-side scripting language used to build dynamic web applications. Key aspects explained include PHP files containing HTML, text, and scripts which are executed on the server and returned to the browser as HTML.
The document discusses different types of functions in PHP including:
1. Defining functions with parameters that can have default values or be variable. Functions can also be called by value or reference.
2. Variable functions allow calling a function based on the value of a variable. Anonymous functions can also be created without a name using create_function().
3. Parameters can be default, variable, or missing values. Variable parameters use func_get_args() and func_num_args() to get argument values. Missing parameters issue warnings.
The document provides an introduction to PHP, including:
- PHP is a scripting language originally designed for web pages and runs on most operating systems.
- PHP syntax is quite easy if familiar with C-type languages, and it is designed to output to browsers but can also create CLI apps.
- Variables, constants, naming conventions, data types, and basic control structures like if/else, while loops and foreach loops are discussed.
- Combining PHP with XHTML is covered, recommending using functions and an object-oriented approach.
- User input via forms is mentioned, linking to a resource on processing forms with PHP.
1) The document provides an introduction to PHP basics including variables, data types, operators, and form handling. It explains how to store data in variables, assign values, destroy variables, and inspect variable contents.
2) Various PHP data types are covered such as integers, floats, strings, booleans, and NULL. Arithmetic, comparison, logical and assignment operators are also explained.
3) The document demonstrates how to manipulate variables using operators, perform arithmetic operations, concatenate strings, compare variables, and perform logical tests.
This document discusses PHP user-defined functions and arrays. It covers defining functions with arguments and default values, as well as different types of arrays - indexed, associative, and multidimensional. Functions allow reusable blocks of code to be called, while arrays allow storing and accessing multiple values using a single variable name. Loops can be used to iterate through array elements.
The document provides an introduction to PHP, covering key topics such as:
- PHP is a server-side scripting language that supports many databases and runs on different platforms.
- PHP scripts are contained within <?php ?> tags and can be embedded in HTML files or call HTML from PHP files.
- Variables start with $, support different data types, and can be concatenated.
- PHP supports common programming constructs like conditional statements, loops, arrays, and functions.
- Form data submitted to PHP pages is accessible via the $_GET and $_POST superglobal arrays.
This document provides an introduction to PHP, including an overview of server-side scripting, the basic PHP syntax, variables, operators, control structures like conditional statements and loops, and how PHP code is processed. It explains what PHP is, how it is widely used for building dynamic websites, and the basic components needed to develop PHP applications including a web server, PHP, and a database.
The document describes a temple design with an Egyptian sun obelisk in the center and two concentric wheels, with a smaller wheel representing the god Baal inside a larger wheel representing the goddess Ishtar. This temple design is located in St. Peter's Square in Rome.
Proof Perfect Editorial Services provides manuscript appraisal services to help authors improve their work and make it more appealing to publishers. Their assessments are conducted by Leigh Blackmore, an experienced editor, author, and publishing professional. Through a 5000-6000 word report, Leigh analyzes formatting, plot, structure, style, characters, dialogue, setting, and market position. Past clients provide testimonials praising the constructive feedback and guidance Leigh's assessments provide to strengthen manuscripts.
PHP string function helps us to manipulate string in various ways. There are various types of string function available. Here we discuss some important functions and its use with examples.
This document discusses PHP includes and error handling. It provides information on the common PHP include functions like include(), include_once(), require(), and require_once(). It explains how includes work and some potential problems with includes like arbitrary local file includes triggered by malicious user input. The document also discusses PHP error types like informational errors, actionable errors, and fatal errors.
The document discusses the different types of operators in PHP including arithmetic, assignment, comparison, logical, increment/decrement, and conditional operators. It provides examples of how each operator is used and the output. The key operators covered are addition, subtraction, multiplication, division, modulus, equal, not equal, less than, greater than, logical and, logical or, increment, decrement, and ternary conditional operators.
This document discusses PHP functions and arrays. It defines PHP functions as reusable blocks of code that can be called repeatedly using the function name. User-defined functions in PHP start with the "function" keyword. Functions can accept arguments and return values. Arrays allow storing multiple values in a single variable and accessing them via numeric indexes. The document provides examples of creating, accessing, and looping through indexed arrays in PHP code.
This document provides an overview of PHP and MySQL. It defines PHP as a server-side scripting language that is commonly used with MySQL, an open-source database management system. The document discusses key PHP concepts like PHP files, variables, operators, conditional statements, arrays, loops, and functions. It also covers form handling in HTML and PHP. The intended audience is users looking to learn the basics of PHP and how it integrates with MySQL for database management.
This document provides an overview of different PHP conditional and loop statements including:
1. If, if/else, and if/elseif/else statements for executing code conditionally.
2. Switch statements for selecting code blocks to execute based on different cases.
3. Looping statements like while, do/while, for, and foreach for repeating code execution. Syntax and examples are given for each statement type.
PHP is a scripting language used for web development that allows developers to write dynamically generated web pages quickly. Key points about PHP include:
- PHP code must be contained within <?php ?> tags or <? ?> shorthand tags
- Files containing PHP code must have a .php extension
- Variables, operators, functions, and other PHP elements allow dynamic content and programming logic
- Functions can take parameters and return values
- Files and sessions allow sharing data across pages
1) Functions in Python allow for modular and reusable code. A function is defined using the def keyword followed by the function name and parameters.
2) Functions can take arguments, including default, required, keyword, and arbitrary arguments. They can also return single or multiple values.
3) Local variables exist only inside the function whereas global variables can be accessed inside and outside the function. The global keyword is used to modify global variables from within a function.
This document contains sample questions for the Zend Certification PHP 5 exam. It includes multiple choice questions testing PHP 5 language features and best practices related to topics like XML processing, database access, regular expressions, and security. The questions cover syntax, functions, patterns and other PHP concepts that could appear on the certification exam.
PHP Basics
This document provides an overview of PHP basics including comments, constants, data types, variables, output functions, superglobals, here documents, operators, and references. It discusses the syntax and usage of PHP comments, defines constants, lists the main data types, explains how to declare variables, compares print and echo output functions, outlines common superglobal variables, demonstrates here documents, and covers unary, arithmetic, assignment, comparison, logical, and ternary operators as well as references.
The document discusses various types of operators in PHP including arithmetic, assignment, comparison, increment/decrement, logical, string, and array operators. It provides examples of common operators like addition, subtraction, equality checking, concatenation and describes what each operator does.
The document provides an introduction to PHP, covering topics such as what PHP is, PHP files, why use PHP, PHP requests, the PHP development environment, PHP syntax, comments, mixing PHP with HTML, variables, operators, control structures like if/else statements, loops, functions, arrays, cookies, and sessions. PHP is introduced as a server-side scripting language used to build dynamic web applications. Key aspects explained include PHP files containing HTML, text, and scripts which are executed on the server and returned to the browser as HTML.
The document discusses different types of functions in PHP including:
1. Defining functions with parameters that can have default values or be variable. Functions can also be called by value or reference.
2. Variable functions allow calling a function based on the value of a variable. Anonymous functions can also be created without a name using create_function().
3. Parameters can be default, variable, or missing values. Variable parameters use func_get_args() and func_num_args() to get argument values. Missing parameters issue warnings.
The document provides an introduction to PHP, including:
- PHP is a scripting language originally designed for web pages and runs on most operating systems.
- PHP syntax is quite easy if familiar with C-type languages, and it is designed to output to browsers but can also create CLI apps.
- Variables, constants, naming conventions, data types, and basic control structures like if/else, while loops and foreach loops are discussed.
- Combining PHP with XHTML is covered, recommending using functions and an object-oriented approach.
- User input via forms is mentioned, linking to a resource on processing forms with PHP.
1) The document provides an introduction to PHP basics including variables, data types, operators, and form handling. It explains how to store data in variables, assign values, destroy variables, and inspect variable contents.
2) Various PHP data types are covered such as integers, floats, strings, booleans, and NULL. Arithmetic, comparison, logical and assignment operators are also explained.
3) The document demonstrates how to manipulate variables using operators, perform arithmetic operations, concatenate strings, compare variables, and perform logical tests.
This document discusses PHP user-defined functions and arrays. It covers defining functions with arguments and default values, as well as different types of arrays - indexed, associative, and multidimensional. Functions allow reusable blocks of code to be called, while arrays allow storing and accessing multiple values using a single variable name. Loops can be used to iterate through array elements.
The document provides an introduction to PHP, covering key topics such as:
- PHP is a server-side scripting language that supports many databases and runs on different platforms.
- PHP scripts are contained within <?php ?> tags and can be embedded in HTML files or call HTML from PHP files.
- Variables start with $, support different data types, and can be concatenated.
- PHP supports common programming constructs like conditional statements, loops, arrays, and functions.
- Form data submitted to PHP pages is accessible via the $_GET and $_POST superglobal arrays.
This document provides an introduction to PHP, including an overview of server-side scripting, the basic PHP syntax, variables, operators, control structures like conditional statements and loops, and how PHP code is processed. It explains what PHP is, how it is widely used for building dynamic websites, and the basic components needed to develop PHP applications including a web server, PHP, and a database.
The document describes a temple design with an Egyptian sun obelisk in the center and two concentric wheels, with a smaller wheel representing the god Baal inside a larger wheel representing the goddess Ishtar. This temple design is located in St. Peter's Square in Rome.
Proof Perfect Editorial Services provides manuscript appraisal services to help authors improve their work and make it more appealing to publishers. Their assessments are conducted by Leigh Blackmore, an experienced editor, author, and publishing professional. Through a 5000-6000 word report, Leigh analyzes formatting, plot, structure, style, characters, dialogue, setting, and market position. Past clients provide testimonials praising the constructive feedback and guidance Leigh's assessments provide to strengthen manuscripts.
The document summarizes Argentina's economic and political history in the early 20th century and how it declined from being one of the richest countries in the world. It traces this decline to the rise of populist leaders like Irigoyen and especially Juan Peron, who vastly expanded social programs and government spending beyond what taxes could support. This led to high inflation, economic mismanagement, and the country eventually defaulting on its debts. The lessons highlighted are the inevitable failure of governments that bankrupt themselves through unrestrained spending on unsustainable entitlement programs.
Organic agriculture in Lebanon presents new opportunities for the market, environment, and consumer health. Greenplanet.net is a community network dedicated to promoting organic farming, natural food, health, and the environment since 1995. It provides news, events, documents, and forums for professionals and consumers in the sector. Greenplanet.net partners with companies and associations and publishes newsletters and reviews to inform over 28,000 subscribers about developments in sustainable and organic agriculture.
Este documento é uma apostila sobre teoria de estruturas produzida pelo professor Romildo Aparecido Soares Junior. A apostila é dedicada à família do professor e agradece aos professores que contribuíram para sua realização. Ela contém informações sobre estruturas isostáticas e hiperestáticas, incluindo métodos para resolução de estruturas e cálculo de deslocamentos.
APLICAÇÃO DO MÉTODO DOS ELEMENTOS DE CONTORNO NA ANÁLISE DE INSTABILIDADE DE ...Engenheiro Civil
Este documento apresenta uma dissertação de mestrado sobre a aplicação do método dos elementos de contorno na análise de instabilidade de placas perfuradas. O trabalho inclui o efeito da deformação por cortante no modelo de flexão de placas isotrópicas e introduz a não linearidade geométrica através de integrais no domínio e no contorno. Elementos de contorno quadráticos contínuos e descontínuos são utilizados e resultados são comparados com a literatura para diferentes condições de contorno. Análises de convergência são real
1) The document provides an introduction to programming concepts like flow charts, libraries, variables, data types, inputs/outputs, and operators.
2) Control structures like if/else, switch, and different types of loops (for, while, do-while) are explained with examples.
3) An assignment is given to write a calculator program that takes two numbers from the user, an operation to perform, performs the calculation, and allows the user to choose another operation or exit.
Helpmeinhomework Experts provides the most trusted and reliable online Programming assignment help . Programming is one of the most widely taught subjects across the universities. The complexity of subjects make students seek for quality and affordable online guidance. We at helpmeinhomework.com Experts cater to such needs of the students. Our programming experts provide assignment help to students across UK, USA and Australia for multiple programming languages i.e. Java, Python, HTML, PHP, Assembly language, C ,Linux ,Unix etc.
Introduction to Python 01-08-2023.pon by everyone else. . Hence, they must be...DRVaibhavmeshram1
Python
Language
is uesd in engineeringStory adapted from Stephen Covey (2004) “The Seven Habits of Highly Effective People” Simon & Schuster).
“Management is doing things right, leadership is doing the right things”
(Warren Bennis and Peter Drucker)
Story adapted from Stephen Covey (2004) “The Seven Habits of Highly Effective People” Simon & Schuster).
“Management is doing things right, leadership is doing the right things”
(Warren Bennis and Peter Drucker)
Story adapted from Stephen Covey (2004) “The Seven Habits of Highly Effective People” Simon & Schuster).
“Management is doing things right, leadership is doing the right things”
(Warren Bennis and Peter Drucker)
The Sponsor:
Champion and advocates for the change at their level in the organization.
A Sponsor is the person who won’t let the change initiative die from lack of attention, and is willing to use their political capital to make the change happen
The Role model:
Behaviors and attitudes demonstrated by them are looked upon by everyone else. . Hence, they must be willing to go first.
Employees watch leaders for consistency between words and actions to see if they should believe the change is really going to happen.
The decision maker:
Leaders usually control resources such as people, budgets, and equipment, and thus have the authority to make decisions (as per their span of control) that affect the initiative.
During change, leaders must leverage their decision-making authority and choose the options that will support the initiative.
The Decision-Maker is decisive and sets priorities that support change.
The Sponsor:
Champion and advocates for the change at their level in the organization.
A Sponsor is the person who won’t let the change initiative die from lack of attention, and is willing to use their political capital to make the change happen
The Role model:
Behaviors and attitudes demonstrated by them are looked upon by everyone else. . Hence, they must be willing to go first.
Employees watch leaders for consistency between words and actions to see if they should believe the change is really going to happen.
The decision maker:
Leaders usually control resources such as people, budgets, and equipment, and thus have the authority to make decisions (as per their span of control) that affect the initiative.
During change, leaders must leverage their decision-making authority and choose the options that will support the initiative.
The Decision-Maker is decisive and sets priorities that support change.
The Sponsor:
Champion and advocates for the change at their level in the organization.
A Sponsor is the person who won’t let the change initiative die from lack of attention, and is willing to use their political capital to make the change happen
The Role model:
Behaviors and attitudes demonstrated by them are looked upon by everyone else. . Hence, they must be willing to go first.
Employees watch leaders for consistency between words and actions to see if they s
The document discusses while loops in programming. It defines a while loop as a structure that executes a sequence of instructions multiple times. It explains that while loops are used when the number of repetitions is unknown and cannot be calculated in advance. The document provides examples of using while loops with loop counters to run code a specific number of times and examples of infinite loops. It also discusses using the break statement to exit a loop early.
This document provides instructions and sample code for Exercise 4 of Learn Python the Hard Way. The exercise introduces variables and variable names in Python.
The sample code defines several variables like cars, drivers, passengers, and uses them to calculate things like empty cars, carpool capacity, and average passengers per car. It prints the results.
The document provides extra credit tasks like adding comments to explain each line, reading the file backwards, finding typing errors, and researching floating point numbers. It also shows an example error when a variable is undefined.
This lecture covers functions and modules in Python. It discusses built-in functions, writing user-defined functions, function parameters and return values, and scope. It also discusses modules as a way to organize Python code and introduces some of Python's standard library modules like math and random. The key points are:
1) Functions allow for code reuse and abstraction by encapsulating repeatable processes. Built-in functions perform common tasks while user-defined functions can be created for custom tasks.
2) Functions are defined using def and have parameters to pass in inputs and return values to produce outputs. Variables inside functions have local scope while global variables can be accessed everywhere.
3) Modules help structure Python programs and provide
The document provides an introduction to programming with Python. It discusses key concepts like code, syntax, output, and consoles. It also covers compiling vs interpreting languages, with Python being an interpreted language. The document explains expressions, variables, basic math operations, and functions in Python like print and input. It introduces control structures like if/else statements, for loops, and while loops. It also covers different data types in Python including numbers, strings, lists, and dictionaries.
Python is an interpreted programming language that can be used to perform calculations, handle text, and control program flow. It allows variables to store values that can later be used in expressions. Common operations include arithmetic, printing output, accepting user input, and repeating tasks using for loops and conditional statements like if/else. The interpreter executes Python code directly without a separate compilation step required by other languages.
The document provides an introduction to programming with Python. It discusses key concepts like code, syntax, output, and consoles. It also covers compiling vs interpreting languages, with Python being an interpreted language. The document explains expressions, variables, basic math operations, and functions in Python like print and input. It introduces control structures like if/else statements and for/while loops. It also covers different data types in Python including numbers, strings, lists, and dictionaries.
This document provides an introduction to Python programming using PyCharm. It discusses downloading and installing Python and PyCharm, creating and running simple Python scripts that use print statements and variables, taking user input, and introducing conditional logic using if/else statements and while loops. Examples include printing ASCII art, basic math operations, and building a text-based choose your own adventure game. Further exercises are suggested to improve the game by adding dice rolls and more options.
This document provides an overview of the basics of Python. It discusses code or source code, syntax, output, the console, compiling vs interpreting, the Python interpreter, expressions, operators, integer and real numbers, math commands, variables, print statements, input, the for loop, range, if/else statements, while loops, logic, and loop control statements. It also covers data types like numbers, strings, lists, sets, and dictionaries.
Python is a general purpose programming language that can be used for both programming and scripting. It is an interpreted language, meaning code is executed line by line by the Python interpreter. Python code is written in plain text files with a .py extension. Key features of Python include being object-oriented, using indentation for code blocks rather than brackets, and having a large standard library. Python code can be used for tasks like system scripting, web development, data analysis, and more.
This document provides an overview of key concepts in programming and Python. It defines terms like code, syntax, output, console, compiling, interpreting, and variables. It explains Python as an interpreted language and shows examples of printing output, taking user input, performing calculations with numbers and math commands, using variables, and basic control structures like if/else and loops. It also covers data types like integers, floats, strings, lists, and how to modify and format them.
Python 101: Python for Absolute Beginners (PyTexas 2014)Paige Bailey
If you're absolutely new to Python, and to programming in general, this is the place to start!
Here's the breakdown: by the end of this workshop, you'll have Python downloaded onto your personal machine; have a general idea of what Python can help you do; be pointed in the direction of some excellent practice materials; and have a basic understanding of the syntax of the language.
Please don't forget to bring your laptop!
Audience: "Python 101" is geared toward individuals who are new to programming. If you've had some programming experience (shell scripting, MATLAB, Ruby, etc.), then you'll probably want to check out the more intermediate workshop, "Python 101++".
This document discusses using Python for scientific computing. It begins by listing popular programming languages for scientific purposes, including Fortran, MATLAB, Scilab, GNU Octave, Mathematica, and Python. While MATLAB is currently the most popular, it is proprietary software. Python is introduced as a free and open source alternative with many scientific libraries like NumPy, SciPy, scikit-learn, and Matplotlib. These libraries allow Python to perform similarly to MATLAB. Instructions are provided for installing the necessary Python packages on Linux, Unix, and Windows systems. Examples demonstrate basic Python syntax and how to perform tasks like importing data, visualization, and machine learning classification.
This document provides an introduction to basic Python programming through examples. It covers installing Python, using Python interactively for calculations, writing Python scripts, using variables, mathematical functions, user input, loops, conditional statements, tuples, and lists. The key topics are explained over 14 sections with code examples to demonstrate each concept.
Teaching Notes (extremely technical) detailing my Raspberry Pi program. This is for the third set of classes, where we taught the Python coding language along with logic structure. This is the last class, putting the logic of computer language structure with the basics of Python, and creating a magic 8 ball prediction program.
This document discusses programming languages and how computers execute code. It explains that high-level languages like Python, C++, and Java are translated into low-level machine language before the computer can run programs. It also discusses interpreters and compilers as tools that translate high-level code. The document then provides an introduction to the Python programming language, including basic Python vocabulary terms. It gives examples of Python code and explains concepts like variables, functions, operators, and data types.
This document provides an introduction to computer programming and mathematics through explaining a basic "Hello World" program written in C++. It discusses the structure of the program, including comments, functions, variables, arithmetic operations on integers, and printing output. It explains how to declare integer variables, assign values, perform basic math, and print values. The document aims to give the reader a foundation for writing their own simple mathematical programs.
3. What is Python?
• Programming Language
- Tells computer what to do
• Interpreted Language
- Different from Compiled Languages
- Executes Program Line by Line
- Turns code into 0s and 1s for
4. Requirements for Python
• To program and run your Python code
- Need a Python Interpreter
- Download and Install IDLE
- Check if Python is installed using command “python -V”
- Should show the version of Python installed
IDLE and Python
already computers
Let’s dive in!!!
5. Simple Programs
Open IDLE and type the following
>>> print “Hello, World!”
Comments, Please
>>> #I am a comment, Fear my wrath!!!
Basic Math in Python
>>> 1 + 1
2
>>> 20 * 15
300
>>> 30 / 5
6
Command Name
+ Addition
- Subtraction
* Multiplication
/ Division
% Remainder
** Exponent
>>> 4 – (2 + 4)
-2
>>> 2 * “Hello, World!”
6. Writing Python code in a file
- Very easy to create
- simple text document
- you can open them in notepad
- save with a filename and an extension “.py”
7. Writing Python code in a file
Open notepad and type the following:
#Program: maryjane.py
#Simple program
print “Mary Jane had a small cat”
print "it's fleece was white as snow;"
print "and everywhere that Mary went",
print "her lamb was sure to go.”
Save file as maryjane.py
8. Writing Python code in a file
Using the IDLE environment
- File > Open > Search for maryjane.py
- Run > Run Module to run program
Note:
- Comment was not printed
- 3rd and 4th lines were merged
- maryjane.py can also be run from the
command line
>>> python maryjane.py
9. Storing Values in Python: Variables
- Stores values
- Values can be changed
- Let’s write a program that uses variables
#Program: variables.py
#examples using variables
v = 1
print “The value of v now is”, v
v = v + 1
print “The value of v is itself plus one, which is equal to ”, v
u = v * 2
print “The value of u equals value in v multiplied by 2,”,
print “ which is equal to ”, u
10. Storing Values in Python: Variables
Variables can also store text, for instance
text1 = “Good Morning”
text2 = “Mary Jane”
text3 = “Mrs.”
print text1, text2
sentence = text1 + “ ” + text3 + text2
print sentence
Expected Output:
Good Morning Mary Jane
Good Morning Mrs. Mary Jane
Next we look at conditionals and loops…
11. Conditionals & Loops
• You need a program to do something a number of times
• For instance, print a value 20 times?
'a' now equals 0
As long as 'a' is less than 10, do the following:
Make 'a' one larger than what it already is.
print on-screen what 'a' is now worth.
a = 0
while a < 10 :
a = a + 1
print a
The ‘while’ Loop:
12. Conditionals & Loops
while {condition that the loop continues}:
{what to do in the loop}
{have it indented, usually four spaces or tab}
{the code here is not looped because it isn't indented}
#EXAMPLE
#Type this in, see what it does
x = 10
while x != 0:
print x
x = x - 1
print "wow, we've counted x down, and now it equals", x
print "And now the loop has ended."
13. Conditionals & Loops
Boolean Expressions (Boolean... what?!?)
- what you type in the area marked {conditions that the loop continues}
Expression Function
< less than
<= less that or equal to
> greater than
>= greater than or equal to
!= not equal to
<> not equal to (alternate)
== equal to
Examples
• My age < the age of the person sitting opposite to me
• Cash in my wallet == 100
• Cost of an iPhone is >= 660
14. Conditionals & Loops
• Conditional – a section of code that is executed if certain
conditions are met
• Different from While loop – run only once!
• Most common is the IF - statement
Syntax:
if {conditions to be met}:
{do this}
{and this}
{and this}
{but this happens regardless}
{because it isn't indented}
Example:
y = 1
if y == 1:
print ‘y still equal to 1’
x = 10
if x > 11:
print x
15. Conditionals & Loops
Conditionals can be used together with a loop. For instance,
print "We will show the even numbers up to 20"
n=1
while n <= 20:
if n % 2 == 0:
print n
n=n+1
print "there, done."
Note:
n % 2 implies the remainder after the value in n is divided
wholly by 2. The expression is read as ‘n modulus 2’. For
instance, 4 % 2 = 0 and 7 % 2 = 1.
16. Conditionals & Loops
- When it Ain't True
Using 'else' and 'elif’ when IF conditions fails
- ‘else’ simply tells the computer what to do if the
conditions of ‘if’ are not met
- ‘elif’ same as ‘else if’
- ‘elif’ will do what is under it if the conditions are
met
17. Conditionals & Loops
a = 1
if a > 5:
print "This shouldn't happen."
else:
print "This should happen."
z = 4
if z > 70:
print "Something is very wrong"
elif z < 7:
print "This is normal"
18. Conditionals & Loops
General Syntax:
if {conditions}:
{run this code}
elif {conditions}:
{run this code}
elif {conditions}:
{run this code}
else:
{run this code}
- You can have as many elif statements as you need
- Anywhere from zero to the sky.
- You can have at most one else statement
- And only after all other ifs and elifs.
19. Conditionals & Loops
General Example:
a = 10
while a > 0:
print a
if a > 5:
print "Big number!"
elif a % 2 != 0:
print "This is an odd number"
print "It isn't greater than five, either"
else:
print "this number isn't greater than 5"
print "nor is it odd"
print "feeling special?”
a = a - 1
print "we just made 'a' one less than what it was!"
print "and unless a is not greater than 0, we'll do the loop again
print "well, it seems as if 'a' is now no bigger than 0!"
20. Python and Functions
Writing interactive program involves:
- User input
- Function to process user input
- Function Output
What is a Function?
- self-contained code
- perform a specific task
- can be incorporated in larger programs
- can be used more than once
21. Python and Functions
Using functions
- Python have predefined functions
- give an input and get an output
- calling a function
Function_Name(list of parameters)
For instance,
a = multiply(70)
Computer sees
a = 350
Note: multiply() is not a real function!!!
22. Python and Functions
So what about a real function?
Let’s try a function called raw_input()
#Program: echo.py
#this line makes ‘in' equal to whatever you type in
in = raw_input("Type in something, and it will echoed on screen:")
# this line prints what ‘in' is now worth
print in
The function raw_input asks the user to type in
something. It then turns it into a string of text.
23. Python and Functions
Assuming you typed “hello”, the computer will see the
program as:
in = “hello”
print “hello”
Note:
- Variable ‘in’ is stored value
- Computer does not see ‘in’ as in
- Functions are similar: input and output
24. User-defined Functions
- Decide what your function does
- Save time looking other people’s functions
- Use in subsequent programs
Syntax:
def function_name(parameter_1,parameter_2):
{this is the code in the function}
{more code}
{more code}
return {value to return to the main program}
{this code isn't in the function}
{because it isn't indented}
25. User-defined Functions
# Below is the function
def hello():
print “HELLO"
return 1234
# And here is the function being used
print hello()
So what happened?
1. When 'def hello()' was run, a function called 'hello' was created
2. When the line 'print hello()' was run, the function 'hello' was
executed
3. The function 'hello' printed ‘HELLO’ onscreen, then returned the
number '1234' back to the main program
4. The main program now sees the line as 'print 1234' and as a result,
printed '1234’
26. User-defined Functions
#Program: add.py
#function to add
def add(a, b):
sum = a+ b
return sum
#program starts here
a = input(“Add this: ”)
b = input(“ to this: ”)
print a , “+”, b, “=”, add(a,b)
#program ends here
print a , “+”, b, “=”, add(input(“Add this: ”), input(“ to this: ”))
{
Function input returns what you typed in, to the main program.
But this time, it returns a type that is a number, not a string!
28. Tuples
months = ('January','February','March','April','May','June',
'July','August','September','October','November',' December')
- Used for coordinate pairs, employee records in database
- Python organizes the values by indexing
>>> months[0]
‘January’
- Create tuple from command line
>>> t = 12345, 54321, ‘hello!’
>>> t
>>> (12345, 54321, ‘hello’)
- Determine size of tuple
>>> len(t)
3
- Packing and Unpacking tuple
>>> x , y, z = t
>>> z
‘hello’
29. Lists
cats = ['Tom', 'Snappy', 'Kitty', 'Jessie', 'Chester']
Print size of list: print len(cats)
Print an element of a list: print cats[2]
Print a range of a list: print cats[0:2]
Add a value to the list: cats.append(‘Catherine’)
Delete an element of a list: del cats[1]
30. Dictionaries
phonebook = {'Andrew Parson':8806336, 'Emily Everett':6784346,
'Peter Power':7658344, 'Lewis Lame':1122345}
Access a person’s phone number:
>>> phonebook[‘Andrew Parson’]
8806336
Change a person’s phone number:
>>> phonebook[‘Lewis Lame’] = 5432211
Add a person to the phonebook
>>> phonebook['Gingerbread Man'] = 1234567
Delete a person from phonebook
>>> del phonebook['Andrew Parson']
31. Dictionaries: Sample program
#define the dictionary
ages = {}
#add names and ages to the dictionary
ages['Sue'] = 23
ages['Peter'] = 19
ages['Andrew'] = 78
ages['Karren'] = 45
#function keys() - is function returns a list of the names of the keys.
print "The following people are in the dictionary:”, ages.keys()
#Use the values() function to get a list of values in dictionary.
print "People are aged the following:", ages.values()
#You can sort lists, with the sort() function
keys = ages.keys();
keys.sort()
print keys
values = ages.values()
values.sort()
print values
32. The For loop
Used to iterate through values in a list
# Example 'for' loop
# First, create a list to loop through:
newList = [45, 'eat me', 90210, "The day has come,
the walrus said, to speak of many things", -67]
# create the loop:
# Go through newList, and sequentially puts each list item
# into the variable value, and runs the loop
for value in newList:
print value
33. The For loop
#cheerleading program
word = raw_input("Who do you go for? ")
for letter in word:
call = "Gimme a " + letter + "!"
print call
print letter + "!"
print "What does that spell?"
print word + "!"
34. Operations with Lists
Conditionals:
>>> sent = ['No', 'good', 'fish', 'goes', 'anywhere', 'without', 'a', 'porpoise', '.']
>>> all(len(w) > 4 for w in sent)
False
>>> any(len(w) > 4 for w in sent)
True
Slicing:
>>> raw = ‘Man in the mirror’
>>> raw[:3]
Man
>>> raw[-3:]
ror
>>> raw[3:]
‘ in the mirror’
35. Importing Modules
- Import modules using the keyword ‘import’
- can be done via command line as well as in text file mode
Example:
>>> import random
>>> random.randint(0,10)
3