Variables in Python | Python Tutorial for Beginners
Assalamualaikum everyone.
Variable is very important in every programming language. It makes programming much much easier for programmers.
Variable is the name of the location in computer memory where our data is stored.
We can assign integer number, floating point number and string in our variable.
Though you can name your variable anything you want, there are some rules to follow,
1. The name of the variable must always start with either a letter or an underscore(_). For example : num, str, _str, _num etc.
2. The name of the variable cannot start with a number. For example : 3num, it cannot be a variable.
3. The name of the variable cannot have special characters. Such as, #, $, & etc. Variable can only have alphanumeric characters and underscore.
4. Variable name is case sensitive in Python. That means, ‘str’, ‘Str’ are two different variables in Python.
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