[issue31214] os.walk has a bug on Windows

[Peter Otten]

Peter Otten added the comment:

Read the documentation of os.walk() again. It already walks the complete directory tree starting with src. 

When you invoke it again by calling your copy_dir() method recursively you will of course see once more the files and directories in the respective subdirectory.

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nosy: +peter.otten

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<http://bugs.python.org/issue31214>
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