Python Programming

#python #basic #intro #programming

What is Python?

Python is a popular, high-level computer programming language known for its clear syntax, readability, and general-purpose versatility.

Simple syntax: Uses clean, English-like words instead of complex symbols or curly brackets.
Interpreted: Code runs line by line, which makes finding errors fast and easy.
Dynamic typing: You do not need to declare variable types ahead of time.
Free and open-source: Available to download and use on all major operating systems.

print("Hello, World!")

Output:
Hello, World!

print() is a built-in Python function that instructs the computer to display text on the screen.
"Hello, World!" is a string enclosed within quotes (either single ' or double ").
Python uses indentation (spaces or tabs) to define code blocks instead of braces {} in C, C++ and Java .

Python 2.0 was introduced to the tech world in the year 2000.
Created by the BeOpen Python Labs team, the purpose of the introduction of Python 2 was to make programming simple and easy to learn for the common masses.
Python 2 was successful in implementing the technical details of the Python Enhancement Proposal (PEP).
However, after the introduction of Python 3, Python 2 could not find a lot of its usage in the tech world and the year 2020 marked the end of Python 2’s legacy with Python 2.7 being its latest version.

Given below is a timeline of the release of the various versions of the Python 2.X series:

Indentation refers to the spaces at the beginning of a code line.
Where in other programming languages the indentation in code is for readability only, the indentation in Python is very important.
Python uses indentation to indicate a block of code.

if 5 > 2:
  print("Five is greater than two!")

Output:
Five is greater than two!

if 5 > 2:
print("Five is greater than two!")

Output:
SyntaxError: expected an indented block after 'if' statement on line 1