Benjamin Peterson added the comment:
This looks much more like a hardware problem than a Python bug.
In the future, please post text instead of images.
--
nosy: +benjamin.peterson
resolution: -> not a bug
stage: -> resolved
status: open -> closed
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New submission from Stéphane Archer :
I use shutil.copytree to copy photos from many sd cards to a hard drive.
I use thread for each sd card. then I check if the content has been copying
correctly with filecmp.cmpfiles with shallow to false. and surprise!!!
some files are not identical. usually,
