Is there a way of forcing Calibre to use "system" Python?

AlPe · 07-31-2013, 11:14 AM

Hi all,

in view of this problem, I am trying to understand whether there is a way of making Calibre to use the "system" installation of Python (in my case, Windows 32bit + Python 2.7.5) instead of the bundled Python libs (in my case, Windows 32bit + Python 2.7.4).

From my tests, it seems not possible, but I would like a confirmation from the experts. Alternatively, I would appreciate if the next Calibre for Windows will ship Python 2.7.5, since Python 2.7.4 is full of regression bugs at key libraries, like zipfile.

Thanks.

kovidgoyal · 07-31-2013, 11:41 AM

Use calibre.utils.zipfile instead of zipfile.

The python stdlib zipfile is badly broken and has always been badly broken.

AlPe · 07-31-2013, 12:12 PM

Thanks for the quick reply.

From a quick test, your suggestion seems to work perfectly, and I appreciate the fact that I just need to change the import lines

07-31-2013, 11:14 AM	#1
AlPe Digital Amanuensis Posts: 727 Karma: 1446357 Join Date: Dec 2011 Location: Turin, Italy Device: Several eReaders and tablets	Is there a way of forcing Calibre to use "system" Python? Hi all, in view of this problem, I am trying to understand whether there is a way of making Calibre to use the "system" installation of Python (in my case, Windows 32bit + Python 2.7.5) instead of the bundled Python libs (in my case, Windows 32bit + Python 2.7.4). From my tests, it seems not possible, but I would like a confirmation from the experts. Alternatively, I would appreciate if the next Calibre for Windows will ship Python 2.7.5, since Python 2.7.4 is full of regression bugs at key libraries, like zipfile. Thanks.

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07-31-2013, 11:41 AM	#2
kovidgoyal creator of calibre Posts: 43,860 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Use calibre.utils.zipfile instead of zipfile. The python stdlib zipfile is badly broken and has always been badly broken.

07-31-2013, 12:12 PM	#3
AlPe Digital Amanuensis Posts: 727 Karma: 1446357 Join Date: Dec 2011 Location: Turin, Italy Device: Several eReaders and tablets	Thanks for the quick reply. From a quick test, your suggestion seems to work perfectly, and I appreciate the fact that I just need to change the import lines

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