Python is an interpreted high-level general-purpose programming language. Its design philosophy emphasizes code readability with its use of significant indentation
[i].
Getting started with Python is easier as compared to that of other programming languages like Java. Python has a lot of predefined libraries which makes it hot favorite for Machine Learning/ Deep Learning like cutting edge technologies.
. Keyword in Python are basically words that have special meaning.
import keyword
keyword.kwlistOutput: ['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']
len(keyword.kwlist)
Output: 35
In total we have 35 keyword in Python.
Variable acts as a container in Python to store value. Variable acts as a place holder to hold value which we can use just by referencing the variable name.
There are rules which should be followed while naming the variable and they are:
firstnum = 10
No error occurred
_firstnum = 11
No error occurred when we define variable with start with _
1firstnum = 12
File "", line 1
1firstnum = 12
^
SyntaxError: invalid syntax
Syntax error occurred when we start defining variable with start with number.
$firstnum = 13
File "", line 1
$firstnum = 13
^
SyntaxError: invalid syntax
Syntax error occurred when we start defining variable that starts with special character.
if = 2
File "", line 1
if = 2
^
SyntaxError: invalid syntax
ar$a = 1
File "", line 1
ar$a = 1
^
SyntaxError: invalid syntax
a = 10
A = 11
aOutput:10
A
Output: 11
A Python identifier is a name used to identify a variable, function, class, module or other object.
