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Kiyanna Gayle
Kiyanna Gayle

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Python - Variable Names

Variable Names

  • MUST start with a letter or the underscore character
  • CANNOT start with a number
  • can only contain alpha-numeric characters and underscores (A-z, 0-9, and_ )
  • case-sensitive (age, Age and AGE are three different variables)
  • CANNOT be any of the Python Keywords

Legal variable names:
myvar = "John"
my_var = "John"
_my_var = "John"
myVar = "John"
MYVAR = "John"
myvar2 = "John"

Illegal variable names:
2myvar = "John"
my-var = "John"
my var = "John"

Camel Case - each word, except the first, starts with a capital letter:
myVariableName = "John"

Pascal Case - each word starts with a capital letter:
MyVariableName = "John"

Snake Case - each word is separated by an underscore character:
my_variable_name = "John"

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