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Which of the following is an invalid variable?

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+1 vote
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Which of the following is an invalid variable?

(a) my_string_1

(b) 1st_string

(c) foo

(d) _

The question was posed to me in an interview.

The question is from Variable Names topic in section Variable Names, Operators, Data Types & Numeric Types of Python

1 Answer

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Best answer
The correct choice is (b) 1st_string

Best explanation: Variable names should not start with a number.

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