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Why does zip return tuples?

原文 2019-07-05 06:14:04 5 1 python/ tuples

I'm wondering why zip() was designed to return tuples and not lists for instance. Is it something that has to do with performance or mutability? Or is it something else?

1 answers

In the fact is that the zip function is designed to :

Return a list of tuples, where each tuple contains the i-th element from each of the argument sequences. (Source: the docstring of zip function)

From this with given arguments you only get one possible result which can't be affected by something else than input that you give. So if the result was list you can modify it and the result will no more be the one expected. The tuples are the solution because they are immutable and you can't affect the result.

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Related Question Why does this group_by / count query return an array of tuples? Why does Psycopg2 return list of tuples in with Stored Procedure? Why does my regular expression return tuples for every character in a string? Why does zip on a generator return just one item? Why does a list comprehension over a zip() call return a list containing the zip object instead of a list of zip()'s return values? Why does it not print a list of tuples with no repeated tuples? Why does re.findall return a list of tuples when my pattern only contains one group? Why doesn't this code return an array of tuples? zip function help with tuples Zip lists of tuples

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Why does zip return tuples?

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1 answers

solution1 5 2019-07-05 06:31:02

solution1
5 2019-07-05 06:31:02