[issue37976] zip() shadows TypeError raised in __iter__() of source iterable

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

> Other option is to check ahead if the argument is an iterable.

The other tools that consume iterators don't go down this path and it doesn't seem to have been a problem in practice.  So, I recommend that we not invent new problems that we didn't already have ;-)

Leaving for Sergey to update his PR.

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<https://bugs.python.org/issue37976>
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