This document provides an introduction to Python fundamentals, including its basic elements and syntax. It discusses the key components needed to write Python programs, such as variables, identifiers, keywords, datatypes, input/output, comments, constants, and operators. Variables are used to store data values, identifiers name variables, and keywords are reserved words that cannot be used as identifiers. There are built-in datatypes like integers, floats, Booleans and strings. The document also covers basic operators for manipulating data and performing comparisons.
Operators in Python are special symbols or keywords that are used to perform operations on variables and values. Python supports various types of operators, each designed for specific purposes.
An operator is a symbol that tells the computer to perform certain mathematical or logical manipulation on data stored in variables. The variables that are operated are termed as operands.
C operators can be classified into a number of categories. They include:
1. Arithmetic operators
2. Relational operators
3. Logical operators
4. Assignment operator
5. Increment and decrement operators
6. Conditional operator
7. Bitwise operators
8. Special operators
Now, let us discuss each category in detail.
Operators in Python are special symbols or keywords that are used to perform operations on variables and values. Python supports various types of operators, each designed for specific purposes.
An operator is a symbol that tells the computer to perform certain mathematical or logical manipulation on data stored in variables. The variables that are operated are termed as operands.
C operators can be classified into a number of categories. They include:
1. Arithmetic operators
2. Relational operators
3. Logical operators
4. Assignment operator
5. Increment and decrement operators
6. Conditional operator
7. Bitwise operators
8. Special operators
Now, let us discuss each category in detail.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
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2. 2
Introduction
Python consists of a number of coding basics.
What do you understand from the below code?
It may look like a foreign language.
To make meaningful sentences in a foreign language, you must
learn its alphabet, words, and grammar.
The same is true for a programming language. Python is a
programming language.
To write meaningful programs, you must learn the programming
language’s semantic, syntax rules and basic elements.
The syntax rules determine which instructions are legal.
The semantic rules determine the meaning of the instructions.
Basic elements are the building blocks to write the instructions.
3. 3
Python Program Basics
Basic elements/fundamentals to create a python
program:
Variables
Identifiers
Keywords
Datatypes
Input/Output
Comments
Constants
Operators
5. 5
Identifiers
An identifier is a name given to a variable.
Python has some rules about how identifiers can be formed
Every identifier must begin with a letter or
underscore, which may be followed by any sequence
of letters, digits, or underscores.
first
conversion
payRate
counter1
Legal
employee salary
hello!
one+two
#second
Illegal: Explain why they are illegal?
7. 7
Keywords
Some identifiers are part of Python itself (they are called
reserved words or keywords) and cannot be used by
programmers as ordinary identifiers
False class finally is return
None continue for lambda try
True def from nonlocal while
and del global not with
as elif if or yield
assert else import pass
break except in raise
Python Keywords
8. 8
Datatypes
A data type represents the type of data stored into a variable
or memory.
Python assumes the type of a variable based on the assigned
value.
9. 9
Two types of Datatypes
1. Built- in data types: The datatypes which are
already available in Python language: =>our focus
2. User-defined data types: The datatypes which
are created by programmers.
10. 10
Major built- in data types:
int datatype: represents an integer number. An integer
number is a number with out any decimal point. Example
a=10 or b=-20
float datatype: represents floating point numbers. A
floating number is a number that contains a decimal point.
Example a=123.45 or b=-20.25
bool datatype: represents Boolean value. A Boolean value
is a value that can be either True or False.
str datatype: represents string. A string is a
sequence/group of characters. String can be enclosed
inside:
Single quotes: 'Welcome to Python Programming'
Double quotes: "Welcome to Python Programming"
11. 11
As a matter of fact, we can do various kinds of conversions
between strings, integers and floats using the built-in int,
float, and str types.
Datatype Conversion
>>> x =
10
>>>
float(x)
10.0
>>>
str(x)
'10'
>>>
>>> y =
"20"
>>>
float(y)
20.0
>>>
int(y)
20
>>>
>>> z =
30.0
>>>
int(z)
30
>>>
str(z)
'30.0'
>>>
integer float
integer string
string float
string integer
float integer
float string
13. 13
Input/Output in Python
You can display program data to the console in
Python with print().
The input() function pauses program execution to
allow the user to type in a line of input from the
keyboard.
Python takes all the input as a string input by
default.
18. 18
Python Comments
Comments are descriptions that help programmers
better understand the intent and functionality of the
program.
Using comments in programs makes our code more
understandable.
Comments can also be used to ignore some code while
testing other blocks of code.
Comments are completely ignored by the Python
interpreter.
Comments can be:
Single-Line Comments
Multi-Line Comment
20. 20
Multi-Line Comments in Python
We can use # at the beginning of each line of comment on
multiple lines.
We can use enclosed triple double quotes.
We can use enclosed triple single quotes.
21. 21
Constants
A constant is a type of variable whose value cannot be changed.
It is helpful to think of constants as containers that hold
information which cannot be changed later.
Python doesn’t have built-in constant types.
By convention, Python uses a variable whose name contains all
capital letters to define a constant.
22. 22
Operators in Python
Operators are special symbols used for specific purposes.
Python provides many operators for manipulating data.
Operators perform an action on one or more operands.
Arithmetical Operators
Assignment Operators
Relational Operators
Logical operators
Increment and Decrement Operators
Bitwise Operators
Membership Operators
23. 23
Python Arithmetic Operators
OperatorDescription Example
+ Addition - Adds values on either side of the
operator
10 + 20 will give 30
- Subtraction - Subtracts right hand operand
from left hand operand
10 - 20 will give -10
* Multiplication - Multiplies values on either
side of the operator
10 * 20 will give 200
/ Division - Divides left hand operand by right
hand operand
20 / 10 will give 2
% Modulus - Divides left hand operand by right
hand operand and returns remainder
20% 10 will give 0
** Exponent - Performs exponential (power)
calculation on operators
10**20 will give 10 to
the power 20
// Floor Division - The division of operands
where the result is the quotient in which the
digits after the decimal point are removed.
9//2 is equal to 4 and
9.0//2.0 is equal to 4.0
24. 24
Python Assignment Operators
Operator Description Example
= Simple assignment operator, Assigns values from right side
operands to left side operand
c = a + b will assign the
value of a + b to c
+= Add AND assignment operator, It adds right operand to the left
operand and assign the result to left operand
c += a is equivalent to
c = c + a
-= Subtract AND assignment operator, It subtracts right operand from
the left operand and assign the result to left operand
c -= a is equivalent to
c = c - a
*= Multiply AND assignment operator, It multiplies right operand with
the left operand and assign the result to left operand
c *= a is equivalent to
c = c * a
/= Divide AND assignment operator, It divides left operand with the
right operand and assign the result to left operand
c /= a is equivalent to
c = c / a
%= Modulus AND assignment operator, It takes modulus using two
operands and assign the result to left operand
c %= a is equivalent to
c = c % a
**= Exponent AND assignment operator, Performs exponential (power)
calculation on operators and assign value to the left operand
c **= a is equivalent to
c = c ** a
//= Floor Division and assigns a value, Performs floor division on
operators and assign value to the left operand
c //= a is equivalent to
c = c // a
25. 25
Python Relational Operators
Operator Description Example
== Checks if the value of two operands are equal or not, if yes
then condition becomes true.
(10 == 20) is not true.
!= Checks if the value of two operands are equal or not, if
values are not equal then condition becomes true.
(10!= 20) is true.
<> Checks if the value of two operands are equal or not, if
values are not equal then condition becomes true.
(10 <> 20) is true. This is
similar to != operator.
> Checks if the value of left operand is greater than the value
of right operand, if yes then condition becomes true.
(10 > 20) is not true.
< Checks if the value of left operand is less than the value of
right operand, if yes then condition becomes true.
(10 < 20) is true.
>= Checks if the value of left operand is greater than or equal
to the value of right operand, if yes then condition becomes
true.
(10>= 20) is not true.
<= Checks if the value of left operand is less than or equal to
the value of right operand, if yes then condition becomes
true.
(a10<= 20) is true.
26. 26
Python Logical Operators
Operator Description Example
and Called Logical AND operator. If both the
operands are true then then condition
becomes true.
(10 and 20) is true.
or Called Logical OR Operator. If any of the two
operands are non zero then then condition
becomes true.
(10 or 0) is true.
not Called Logical NOT Operator. Use to
reverses the logical state of its operand. If a
condition is true then Logical NOT operator
will make false.
not(10 and 20) is false.
27. 27
Increment and Decrement Operators
The increment operator ++
It adds one to a variable.
The decrement operator --
It subtracts one from a variable
Increment and decrement operators can be used
before(prefix) or after(postfix) a variable.
In prefix mode (++ variable or - -variable) the operator
increments or decrements, then returns the value of the
variable.
In postfix mode (variable++ or variable- -) the operator
returns the current value of the variable, then increments or
decrements.
28. 28
Post increment Operator
The position of the ++ determines when the value
is incremented. If the ++ is after the variable, then
the incrementing is done last (a post
increment).
count = 3
amount = 2 * count++
amount gets the value of 2 * 3, which is 6, and then
1 gets added to count.
So, after executing the last line, amount is 6 and
count is 4.
29. 29
Pre increment Operator
If the ++ is before the variable, then the
incrementing is done first (a pre increment).
count = 3
amount = 2 * ++count
1 gets added to count first, then amount gets the
value of 2 * 4, which is 8.
So, after executing the last line, amount is 8 and
count is 4.
30. 30
Post decrement Operator
The position of the -- determines when the value is
decremented. If the -- is after the variable, then
the decrementing is done last (a post
decrement).
count = 3
amount = 2 * count--
amount gets the value of 2 * 3, which is 6, and
then 1 gets subtracted from count.
So, after executing the last line, amount is 6 and
count is 2.
31. 31
Pre decrement Operator
If the -- is before the variable, then the
decrementing is done first (a pre decrement).
count = 3
amount = 2 * --count
1 gets subtracted from count first, then amount
gets the value of 2 * 2, which is 4.
So, after executing the last line, amount is 4 and
count is 2.
32. 32
Python Bitwise Operators
Operator Description Example
& Binary AND Operator copies a bit 1 to the
result if it exists in both operands.
(60& 13) will give 12 which
is 0000 1100
| Binary OR Operator copies a bit 1 if it exists in
either operand.
(60 | 13) will give 61 which
is 0011 1101
^ Binary XOR Operator sets the bit to 1 if the bit
of the operand opposite.
(60^ 13) will give 49 which
is 0011 0001
~ Binary Ones Complement Operator is unary
and has the effect of 'flipping' bits.
(~60 ) will give -60 which
is 1100 0011
<< Binary Left Shift Operator. The left operands
value is moved left by the number of bits
specified by the right operand.
60<< 2 will give 240 which
is 1111 0000
>> Binary Right Shift Operator. The left operands
value is moved right by the number of bits
specified by the right operand.
60>> 2 will give 15 which
is 0000 1111
33. 33
Python Membership Operators
In addition to the operators discussed previously, Python has
membership operators, which test for membership in a sequence,
such as strings, lists, or tuples.
Operator Description Example
in Evaluates to true if it finds a variable in the
specified sequence and false otherwise.
x in y, here in results in a 1 if
x is a member of sequence y.
not in Evaluates to true if it does not finds a variable
in the specified sequence and false otherwise.
x not in y, here not in
results in a 1 if x is a member
of sequence y.
34. 34
Python Operators Precedence
Operator Description
() ++ - - ** Parentheses, increment, decrement, exponentiation
~ complement
* / % // Multiply, divide, modulo and floor division
+ - Addition and subtraction
>> << Right and left bitwise shift
& Bitwise 'AND'
^ | Bitwise exclusive `OR' and regular `OR'
<= < > >= Comparison operators
<> == != Equality operators
= %= /= //= -= += *=
**=
Assignment operators
is is not Identity operators
in not in Membership operators
not or and Logical operators