[issue15377] os.path.join() error misleading with path1=None

[Hynek Schlawack]

Hynek Schlawack <hs at ox.cx> added the comment:

I propose the following patch (against 3.2) that does the right thing.

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keywords: +patch
nosy: +ncoghlan, pitrou
stage:  -> patch review
Added file: http://bugs.python.org/file26414/nicer-error-for-none.diff

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