Message 337920 - Python tracker (original) (raw)

Message337920

Author	ncoghlan
Recipients	Anthony Sottile, Chris Billington, Ivan.Pozdeev, Peter L3, SilentGhost, __Vano, barry, brett.cannon, cheryl.sabella, christian.heimes, eric.smith, eric.snow, ethan smith, ionelmc, jaraco, mhammond, ncoghlan, pitrou, steve.dower, takluyver, terry.reedy, veky
Date	2019-03-14.14:36:07
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	1552574167.4.0.0599262356842.issue33944@roundup.psfhosted.org
In-reply-to

Content
Just noting that https://bugs.python.org/issue14803 is probably our most comprehensive discussion of the coverage use case for arbitrary pre-__main__ code execution. Steve also made a comment above about potentially turning encodings into a namespace package: that's difficult due to the non-empty `__init__.py` file that registers a couple of codec search functions as a side effect of import: https://github.com/python/cpython/blob/master/Lib/encodings/__init__.py However, it would be possible to define a new namespace package for codec discovery that was searched after the standard search locations (so you could use it to add extra codecs, but not hijack existing ones).

Content

Just noting that https://bugs.python.org/issue14803 is probably our most comprehensive discussion of the coverage use case for arbitrary pre-__main__ code execution. Steve also made a comment above about potentially turning encodings into a namespace package: that's difficult due to the non-empty `__init__.py` file that registers a couple of codec search functions as a side effect of import: https://github.com/python/cpython/blob/master/Lib/encodings/__init__.py However, it would be possible to define a *new* namespace package for codec discovery that was searched after the standard search locations (so you could use it to add extra codecs, but not hijack existing ones).

History
Date	User	Action	Args
2019-03-14 14:36:07	ncoghlan	set	recipients: + ncoghlan, mhammond, barry, brett.cannon, terry.reedy, jaraco, pitrou, eric.smith, christian.heimes, ionelmc, SilentGhost, __Vano, eric.snow, takluyver, steve.dower, veky, Ivan.Pozdeev, Anthony Sottile, ethan smith, cheryl.sabella, Chris Billington, Peter L3
2019-03-14 14:36:07	ncoghlan	set	messageid: 1552574167.4.0.0599262356842.issue33944@roundup.psfhosted.org
2019-03-14 14:36:07	ncoghlan	link	issue33944 messages
2019-03-14 14:36:07	ncoghlan	create