There are 4 major rules for setting variable names in python programming language.
We will learn about these rules in this video.
0:00 Starts with letter or Underscore :
A variable name must start with a letter or the underscore character
0:55 Cannot Start with Numbers:
A variable name cannot start with a number
1:50 Only Alpha-numeric and Underscore:
A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
3:55 Variable name are case-sensitive:
Variable names are case-sensitive (age, Age and AGE are three different variables)
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