Python Constant

Constant:

Constant is an identifier whose value can not be changed.In Python language these constants are classified into following types
1.Numerical constants
2.Character constants

Numerical Constants:

Numerical means numbers .these are classified into 2 types
1.Integer constants
2.Real constants

Integer Constants:
Integer constants means + or - numbers.
Example:
x=10;
y=-10

Real Constants:
Real constants means floating values or decimal values.
Example:
x=10.0;

Character Constants:

These are classified into fallowing types
1.Single character constants
2.String character constants

Single Character Constants:
If any character or symbol or number enclosed with single quotation.
Example:
x='a';
x='2';
x='@';

String Character Constants:
Group of characters or symbols or numbers enclosed with double quotation.
Example:
s1="abc";
s2="@##$";
s3="123";

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