Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:
> It would need a special case so that `for x in *a, *b:` doesn't first
> construct a tuple of all elements in a and b. Thoughts?
It may be surprising that `for x in *a, *b:` behave differently from `for x in
(*a, *b):`.
It is idiomatic to create a list of keys and iterate it if you want to modify
the dict during iterating:
for key in list(d):
# modify d
This can be written in a form
for key in [*d]:
# modify d
or
for key in (*d,):
# modify d
(although the latter variant is slightly slower).
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue34508>
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