Python Constants

Constants in Python:

Defn: A constant is similar to a variable but its value can not be modified or changed in the course of the program execution.

The constant concept is not applicable in Python. It is possible in Java, C++ and C languages.

But A developer can indicate a variable as constant by writing its name in all upper case letters. 

For our convenience, we use uppercase characters. Defining constant is not possible in Python

Example:

In mathematics, 'PI' value is 3.1714 which never changes and it is constant. 

PI=3.1714  #It is just convention but we can change the value.

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