[issue41242] When concating strings, I think it is better to use += than join the list

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

In this particular case the number of concatenations is limited, the resulting string is usually short, and the code is not performance critical (it is the __repr__ implementation). So there is no significant advantage of one way over other, and no way is obviously wrong. In such cases the status quo wins.

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nosy: +serhiy.storchaka

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