Question

rules for identifiers in python subject ​

Answer 1

Answer:

Python Identifiers

• Identifiers can be a combination of letters in lowercase (a to z) or uppercase (A to Z) or digits (0 to 9) or an underscore _ . ...
• An identifier cannot start with a digit. ...
• Keywords cannot be used as identifiers. ...
• We cannot use special symbols like !, @, #, $, % etc. ...

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Answer 2

ANSWER

1. Identifiers can be a combination of letters in lowercase (a to z) or uppercase (A to Z) or digits (0 to 9) or an underscore _. Names like myClass, var_1 and print_this_to_screen, all are valid example.

2. An identifier cannot start with a digit. 1variable is invalid, but variable1 is a valid name.

3. Keywords cannot be used as identifiers.global = 1Output File "<interactive input>", line 1 global = 1 ^ SyntaxError: invalid syntax

4.We cannot use special symbols like !, @, #, $, % etc. in our identifier.a@ = 0

• Output File "<interactive input>", line 1 a@ = 0 ^ SyntaxError: invalid syntax

5. An identifier can be of any length.