Tutorial on Python: Basic

Python has two different versions; python 2 and python 3. In this tutorial, everything will be discussed according to the python 3 version.

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Hello, World!

To print a string in python:

print("Hello, World!")

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Python Indentation

Indentation refers to the spaces at the beginning of a code line.

if a > b:
print("a is greater than b") ###This syntax is right

if a > b:
print("a is greater than b") ###This is wrong syntax

"#" this sign is used in python as a comment when line by line has checked, the comment part has automatically skipped.

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Variables

variables are created when you assign a value to it. These variables are used to store the data. Points to be remembered:

1. Variables name can only be started with letter or underscore

2. Variable names are case-sensitive

3. A variable name cannot start with a number

4. Except alphanumeric, "_" can be used for giving the name of a variable

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y = "How are you?"

X1 = 25

mean_age = 30

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In an one-line you can assign values for multiple variables:

x, y, z = 5, "kolkata", 7.0

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x = "love"
print("I" + x +"Python")

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x = "Don't be "
y = "afraid"
z = x + y
print(z)

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