Python - Variable & multiple assignment

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Python Variables

In Python variables are created the moment you assign a value to it:

Example

Variables in Python:
x = 5
y = "Hello, World!"

Python has no command for declaring a variable.


a, b = 0, 1

a multiple assignments: the variables 'a' and  'b' simultaneously get the new values 0 and 1.

 
a, b = b, a+b

 demonstrates that the expressions on the right-hand side are all evaluated first before any of the assignments take place. The right-hand side expressions are evaluated from the left to the right

 implies it would become something like this in first parse

a, b = b, 1

 implies it would become something like this in first parse

a, b = 1, 1
implies 'a' would get 1 and 'b' would the evaluation of a+b i.e. 0+1 = 1

 ------------Also Python supports

 a=b=c=d = 17
implies all above variables have been assigned same value of 17

------------Different data types -------
intNum,nameString = 20,"Ramit Girdhar" 

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