[issue14702] os.makedirs breaks under autofs directories

[Hynek Schlawack]

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

Charles, I don't think you can blame autofs here. The problem at hand is that makedirs() never checks whether the directory exists (that would trigger the mount too I presume). Instead, it tries a mkdir and looks if it gets an EEXIST.

If you try that approach in this case where /net is non-writable and /net/prodigy appears only on demand, it fails with an EPERM instead.

Have a look at http://hg.python.org/cpython/file/8215aaccc9dd/Lib/os.py#l136 especially line 151.

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