Answer :
Final answer:
In Python, valid variable names can include letters, numbers, and underscores and cannot start with a number or contain special characters (except the underscore). From the list provided, 'home_address', 'Age', and 'var1_3' (if the period is substituted with an underscore) are valid names whereas 'return', 'Var1.3', '4 square', and 'route 66' are not valid.
Explanation:
In Python, variable names can contain letters, numbers, and underscores. They should not start with numbers and special characters are not allowed except the underscore. Also, Python is a case-sensitive language, meaning that 'Age' and 'age' would be different variables.
The following are valid variable names in Python from your list:
- home_address
- Age
- var1_3 (Please note if the '.' was replaced by '_' it would be valid. I assume this was a typo.)
The following are not valid variable names in Python:
- return (This is a reserved word in Python and cannot be used as a variable name.)
- var1.3 (A period is not a valid character for variable names in Python.)
- 4 square (Variable names cannot start with numbers and spaces are not allowed.)
- route 66 (Spaces are not allowed in variable names.)
Learn more about Python Variable Names here:
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