Standalone Python 3?

blue-j · 03-11-2021, 04:42 PM

A developer friend mentioned that Calibre packaged a standalone Python for internal use - something I'm trying to create for another piece of software. I don't see it though - Python/lib in the app is empty. Can anyone advise!

Thanks so much!

- J

kovidgoyal · 03-11-2021, 09:45 PM

Yes it has its own embedded python. And all the python modules are placed in a single file in bytecode form which is memory mapped and uses a custom import implementation for maximum import speed. See https://github.com/kovidgoyal/bypy for details.

blue-j · 03-11-2021, 11:23 PM

I am utterly astounded. Amazing work!!!! What an achievement! - J

Quote:

Originally Posted by kovidgoyal

Yes it has its own embedded python. And all the python modules are placed in a single file in bytecode form which is memory mapped and uses a custom import implementation for maximum import speed. See https://github.com/kovidgoyal/bypy for details.

kovidgoyal · 03-12-2021, 12:43 AM

It's the end result of over a decade of releasing python software. Sadly releasing python software was never a problem that was satisfactorily tackled upstream, so I've had to roll my own. bypy is designed for my personal use mainly (for calibre and kitty), but if you find it useful, enjoy.

03-11-2021, 04:42 PM	#1
blue-j Junior Member Posts: 2 Karma: 10 Join Date: Mar 2021 Device: none	Standalone Python 3? A developer friend mentioned that Calibre packaged a standalone Python for internal use - something I'm trying to create for another piece of software. I don't see it though - Python/lib in the app is empty. Can anyone advise! Thanks so much! - J

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03-11-2021, 09:45 PM	#2
kovidgoyal creator of calibre Posts: 45,347 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Yes it has its own embedded python. And all the python modules are placed in a single file in bytecode form which is memory mapped and uses a custom import implementation for maximum import speed. See https://github.com/kovidgoyal/bypy for details.

03-12-2021, 12:43 AM	#4
kovidgoyal creator of calibre Posts: 45,347 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	It's the end result of over a decade of releasing python software. Sadly releasing python software was never a problem that was satisfactorily tackled upstream, so I've had to roll my own. bypy is designed for my personal use mainly (for calibre and kitty), but if you find it useful, enjoy.