PYTHON PROGRAMMING FUNDAMENTALS
================================
KEYWORDS
=========
==> Reserved words (pre-defined words)
specific meaning ==> specific action
==> 35-keywords

ex: 
selection: if, else, elif
program for even or odd

even - block:

odd - block:

# WAP IN PYTHON TO DISPLAY ALL THE KEYWORDS OF PYTHON.

"""
Python library ==> Package ==> Modules ==> data ==> "keyword" ==> kwlist
"""

import keyword

list_keywords = keyword.kwlist

print(list_keywords)


['False', 'None', 'True', 'and', 'as', 'assert', 'async', 'await', 'break', 'class', 'continue', 'def', 'del', 'elif', 'else', 'except', 'finally', 'for', 'from', 'global', 'if', 'import', 'in', 'is', 'lambda', 'nonlocal', 'not', 'or', 'pass', 'raise', 'return', 'try', 'while', 'with', 'yield']

==========================================
IDENTIFIERS
===========
==> a name
	which we can use to name any entity in the program

variables,
functions
classes
objects
methods, files etc.

Identifier Rules:
================
1) Should always define with: alphabets (lower-case/upper-case/both),
		digits (0 to 9) and special character: _
2) if the identifier with any special characters ==> syntax error.
3) an identifier can start with digit means ==> Syntax error.
4) When the identifier with spaces ==> Syntax Error
5) If the keyword as an identifier ==> Syntax Error
6) Keywords in Python are case Sensitive.
7) No limit in identifier length.

_abc = 40 ==> correct

# a@ = 100
# 9a = 100

# abc def = 9876
# if = 100

If = 90

ababababbabababbababbababbababbabababbabababbabababbabababababbababab = 123

================================================

VARIABLES
==========
a named memory
acts as the container
to store a value/data.

Dynamically Typed programming language:
=======================================

High level programming languages
	statically typed : C
	strongly typed : Java
Syntax:
	datatype identifier = value;
ex: int a = 10.23; ==> wrong in java 
int a = 123;
int a = 10.23; ==> Correct in c
10 ==> a

	dynamically typed ==> Python
		the type of the data need not to specify at the time of definition
		the PVM can detect the type of value automatically during the run time of the program.

a = 10  # can store at address-1
b = 20  # address-2
c = 20
d = 10

print(id(10))   # address-3
print(id(20))   # address-4

print(id(a))
print(id(b))
print(id(c))
print(id(d))

# address of the data:
# id() ==> can use to get the address of the data.
# syntax: id(data)
# id() can give the address for only one element at a time.

# type() ==> can use to find the type of the data.
# Syntax: type(data)

print(type(a))



DATATYPES AND LITERALS
TYPE CASTING
OPERATORS