[issue34224] python 3.7 inside venv tries to write back to read-only installation directory (Grammar3.7.0.final.0.pickle)

[Andreas Jung]

Andreas Jung  added the comment:

This issue is still true for 3.8.0b1, Ubuntu 19.04, umask is 0077, Python 3.8 
is installed using "sudo make install".

!bin/python
bin/python setup.py develop
running develop
running egg_info
writing fs.webdavfs.egg-info/PKG-INFO
writing dependency_links to fs.webdavfs.egg-info/dependency_links.txt
writing entry points to fs.webdavfs.egg-info/entry_points.txt
writing requirements to fs.webdavfs.egg-info/requires.txt
writing top-level names to fs.webdavfs.egg-info/top_level.txt
error: [Errno 13] Permission denied: 
'/opt/python-3.8.0b1/lib/python3.8/lib2to3/Grammar3.8.0.beta.1.pickle'


So "python3 -m venv" should setup a virtualenv properly without the need 
writing anything to the Python installation directory. Or it is up to "make 
install" to generate the related files properly during installation.

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[issue34224] python 3.7 inside venv tries to write back to read-only installation directory (Grammar3.7.0.final.0.pickle)

[Andreas Jung]

New submission from Andreas Jung :

I installed Python 3.7.0 from source inside /opt/python-3.7.0 (make install as 
root).

Then I created a virtual environment for a package and tried to develop the 
package.
Python 3.7.0 tries to create a file

/opt/python-3.7.0/lib/python3.7/lib2to3/Grammar3.7.0.final.0.pickle

which fails obviously because the installation directory is owned by root and 
is not writable for an normal user account

(my-3.7) ajung@dev ~/src/zopyx.txng3.ext (master) $ 
/opt/python-3.7.0/bin/python3 -m venv .

(my-3.7) ajung@dev ~/src/zopyx.txng3.ext (master) $ bin/python
Python 3.7.0 (default, Jul 25 2018, 16:08:13) 
[GCC 7.3.1 20180130 (Red Hat 7.3.1-2)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 


(my-3.7) ajung@dev ~/src/zopyx.txng3.ext (master) $ bin/python setup.py develop
running develop
running egg_info
writing zopyx.txng3.ext.egg-info/PKG-INFO
writing dependency_links to zopyx.txng3.ext.egg-info/dependency_links.txt
writing namespace_packages to zopyx.txng3.ext.egg-info/namespace_packages.txt
writing requirements to zopyx.txng3.ext.egg-info/requires.txt
writing top-level names to zopyx.txng3.ext.egg-info/top_level.txt
error: [Errno 13] Permission denied: 
'/opt/python-3.7.0/lib/python3.7/lib2to3/Grammar3.7.0.final.0.pickle'

--
title: python 3.7 inside venv tries to write back to installation directory -> 
python 3.7 inside venv tries to write back to read-only installation directory 
(Grammar3.7.0.final.0.pickle)
versions: +Python 3.7

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[issue34224] python 3.7 inside venv tries to write back to read-only installation directory (Grammar3.7.0.final.0.pickle)

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

Seems related : https://bugs.python.org/issue15317

Thanks

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nosy: +xtreak

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