[issue38001] Unexpected behaviour of 'is' operator

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan <tir.karthi at gmail.com> added the comment:

This will emit a SyntaxWarning in Python 3.8 to use == instead of using is for literals. This is not a bug but an implementation detail over caching a range of integers at https://github.com/python/cpython/blob/1f21eaa15e8a0d2b0f78d0e3f2b9e5b458eb0a70/Objects/longobject.c#L19

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nosy: +xtreak

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<https://bugs.python.org/issue38001>
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