Python Variables

What are variables? 

• In Python, variables are names, references or identifiers that store the values.

• A variable is a name associated with a memory location where data is stored.

• They can hold different types of data such as numbers, strings, lists, etc.

Input

x=5

y="John"

Here x, and y are variables which store Data (5 and "John")

The rule for naming variables?

1. Choose a descriptive name for your variable that accurately reflects the purpose or value it holds.
2. A variable name must start with a letter or the underscore character(A-z or _)
3. A variable name cannot start with a number
4. A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
5. Variable names are case-sensitive (age, Age and AGE are three different variables)
6. A variable name cannot be any of the Python keywords.

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