Message 334199 - Python tracker

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In-reply-to
Author	ionelmc
Recipients	Anthony Sottile, Chris Billington, Ivan.Pozdeev, SilentGhost, __Vano, barry, brett.cannon, christian.heimes, eric.smith, eric.snow, ethan smith, ionelmc, jaraco, mhammond, ncoghlan, pitrou, takluyver, terry.reedy, veky, vstinner
Date	2019年01月22日.04:42:30
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1548132150.78.0.344312466476.issue33944@roundup.psfhosted.org>

Content
FYI I have 3 projects that use pth files to activate various features (an env var is usually the trigger): https://pypi.org/project/pytest-cov - enables coverage measurement in any subprocess https://pypi.org/project/manhole - installs a debug service https://pypi.org/project/hunter - installs a tracer I wouldn't like them being rendered almost or completely useless by such a hasty change. Running stuff during startup can be problematic and tricky, for example I have painfully found out that on python 2.7 you can completely hose up your codecs registry if you try to decode things during startup (before the registry is fully built) but I think it's a fair price for such a powerful feature.

Content

FYI I have 3 projects that use pth files to activate various features (an env var is usually the trigger):
https://pypi.org/project/pytest-cov - enables coverage measurement in any subprocess
https://pypi.org/project/manhole - installs a debug service
https://pypi.org/project/hunter - installs a tracer
I wouldn't like them being rendered almost or completely useless by such a hasty change. 
Running stuff during startup can be problematic and tricky, for example I have painfully found out that on python 2.7 you can completely hose up your codecs registry if you try to decode things during startup (before the registry is fully built) but I think it's a fair price for such a powerful feature.

History
Date	User	Action	Args
2019年01月22日 04:42:32	ionelmc	set	recipients: + ionelmc, mhammond, barry, brett.cannon, terry.reedy, jaraco, ncoghlan, pitrou, vstinner, eric.smith, christian.heimes, SilentGhost, __Vano, eric.snow, takluyver, veky, Ivan.Pozdeev, Anthony Sottile, ethan smith, Chris Billington
2019年01月22日 04:42:30	ionelmc	set	messageid: <1548132150.78.0.344312466476.issue33944@roundup.psfhosted.org>
2019年01月22日 04:42:30	ionelmc	link	issue33944 messages
2019年01月22日 04:42:30	ionelmc	create

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