[Python-ideas] disabling .pyc and .pyo files

Brett Cannon brett at python.org
Wed Dec 9 00:13:48 CET 2009

2009/12/8 Kristján Valur Jónsson <kristjan at ccpgames.com>

>  [SNIP]
I looked at the import code and I found that it is trivial to block the
> reading and writing of .pyo files.  I am about to implement that patch for
> our purposes, thus forcing recompilation of the .py files on each run if so
> specified.   This will ensure that the application will execute only the
> code represented by the checked-out .py files.  But it occurred to me that
> this functionality might be of interest to other people than just us.  I can
> imagine, for example, that buildbots running the python regression testsuite
> might be running into problems with stray .pyo files from time to time.

Are you suggesting that the flag turn off reading *period*, or only if no
source is available? I think you mean the former while Guido suggested the

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