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Variable Name and their types in python

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By default a variable�s data type is string unless we assign a value to it during declaration.

If we declare a variable and take value from user then it will be treated as string variable.

So we have to change its data type and then take value from user.

In [1]:

# types of variables

x = 5

y = 1.5

z = "hello"

print (x)

print(type(x))

print (y)

print(type(y))

print (z)

print(type(z))

5



1.5



hello

A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume).

Rules for Python variables:

A variable name must start with a letter or the underscore character
A variable name cannot start with a number
A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
Variable names are case-sensitive (age, Age and AGE are three different variables)
Spaces and keywords are not allowed in variable name

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