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: Introduction to Python
निम्नलिखित में से कौन सा एक इनवैलिड वैरिएबल है? , Which of the following is an invalid variable?
Which of the following is an invalid variable?
A.
my_string_1
my_string_1
B.
1st_string
1st_string
C.
foo
foo
D.
_myvar
_myvar
Solution
B. 1st_string
Explanation
Variable names should not start with a number.
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