Friday, 29 June 2018
Python Operators
Python Operators
Like all computer programming languages, python also supports following basic operators. Using these operators, we can perform mathematical operations on variables.Basic operators in Python includes
+ for addition operation
- for subtraction operation
* for multiplication operation
/ for division operation
% for modulus operation
** for exponent operation
// for floor division operation
Examples of Python Operators
Let’s use these operators on following two variables:num1 = 10
num2 = 5
Addition
num1 + num2 will result in 15
Subtraction
num1 - num2 will result in 5
Multiplication
num1 * num2 will result in 50
Division
num1/num2 will result in 2
Floor Division
num1//num2 will result in 2 (rounds down the answer to the nearest whole number)
Modulus
num1%num2 will result in 0 (It’s remainder of 10 divided by 5)
Exponent
num1**num2 will result in 100000 (10 to the power of 5)
Assignment Operator (=)
Like most of the programming languages, Python uses equal sign (=) as assignment operator.
number = 5
Above statement will assign value 5 to variable number.
There are a few more ways to use assignment operators in Python; examples are +=, -= and *=.
If we want to increment value of number by 2, we can write
number = number + 2
Python will first evaluate the expression on the right side i.e. number + 2 and assign the answer to the left side. Hence execution of above statement will result in number = 7 (assuming initial value of number is 5).
The same statement can also be written as under:
number += 2
The number += 2 is actually a short form of the statement number = number + 2
Similarly, if we want to do a subtraction, we can write number = number – 2 or number -= 2. The same works for most of the python operators described above.
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Python Installation and Setup
Python Installation and Setup
Python interpreter is needed to run Python programs. Perform following steps to install python software in your system.
Step-1 Search "Python Download in Google"
Step-2 Download latest Python version from URL https://www.python.org/downloads/
Step-3 Install Downloaded - Python 3.7.4 applications (.exe file)
Step-4 Install Python 3.7.4 - Customize your installation
Step-5 Select basic configuration to install (select your installation drive and folder)
Step-6 Wait for message "Python Setup was successful"
Step-7 Go to Windows start menu and select: IDLE Python 3.7
Step-8 Start writing your Python code in IDLE (Python Interpreter)
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Acknowledgement: All product names (Google, Windows, Python and others), logos, and brands are property of their respective owners. The content shown on page is for demonstration only.
Python Overview
Python Overview
If you are new to the Computer Programming, Python is a great place to start. One of the key features of Python is its simplicity which makes it ideal language for beginners to learn.Python is one of the widely used high-level programming language invented by Guido van Rossum. It can be used for solving varieties of problems. Python is known for its simplicity and code readability. Programmer can develop application very rapidly using Python.
Python code resembles the English language. To interpret the Python codes, computer needs a special program known as the Python interpreter. Python interpreter is needed to code, test and execute the Python programs.
Friday, 23 March 2018
First Python Program
My First Python Program
Start your Python Shell.You will get command prompt like (>>>). Write following simple command to print your first message using Python Programming.
>>> print("Hello World")
Hello World
Congratulations!!! Your first python program is done....
Here, >>> print("Hello World") is the python code we need to write to generate the
output Hello World.
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#Sample Python Program
print("Hello Students..")
print("Welcome to Python Practicals.......")
Output:
Hello Students..
Welcome to Python Practicals.......
Python Practicals
Welcome to the World of Python Programming
This blog helps you to learn Python programming concepts. You can learn Python programming practicals at your own pace. One can easily learn concepts of Python programming by practicing various programs given on various pages of this blog. Enjoy the power of Self Study.
Click your Topic of Interest to Learn.....
Basics of Python
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Looping
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Functions
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File Management
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Classes
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Networking
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Security
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Branching Statements in Python: Python language executes program statements in a sequence. Sometimes we need to alter the flow of sequence of statements. This is possible using Branching statements offered by Python language. They are also known as control statements. Branching Statements of Python are given below:
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Looping statements in Python: In computer programming, a loop is a sequence of commands or statements that are repeated many times. Looping statements in Python language are as under:
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File Management in Python: We create a File for permanent storage of data. Python language provides many functions that help us to perform various file operations.
Click here to know more about general syntax of File Management, reading content from a file, writing and appending content to a file. |
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