CODEWITHSUNDEEP
python
Chiji
Chiji

Reputation: 1

Variable value is kept into next iteration of "for" loop?

Take the pseudocode below for example:

Python keeps the previous value for x, so if get_sum() fails, the conditional is still checked using the previous value of x. Is this because python for loop doesn't introduce a new scope and is it ok to simply del the object at the end of each iteration?

for number in number_list:
    try:
        x = get_sum()
    except:
        ....

    if x > 100:
        do something

Upvotes: 0

Views: 707

Answers (1)

user14695006
user14695006

Reputation:

Every variable in python is created in the scope of their respective functions and classes rather than at different levels of indentation, or in for loops or while loops. There's no block scope in python like there is in java.

If you need x to not retain its old value, you can always set x = None in your except clause and have a conditional catch it later on. If i'm misinterpreting your question please leave a comment

Upvotes: 2

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