** Description changed: Tested on focal with both the focal-proposed 3.9.0-1~20.04 amd64 and focal-updates 3.9.0~rc1-1~20.04 amd64 packages. Installed python3.9 (+deps) and python3.9-venv $ python3.9 -m venv venv The virtual environment was not created successfully because ensurepip is not available. On Debian/Ubuntu systems, you need to install the python3-venv package using the following command. - apt-get install python3-venv + apt-get install python3-venv You may need to use sudo with that command. After installing the python3-venv package, recreate your virtual environment. Failing command: ['/home/ziddey/test/venv/bin/python3.9', '-Im', 'ensurepip', '--upgrade', '--default-pip'] $ python3.9 -m ensurepip --version /usr/bin/python3.9: Error while finding module specification for 'ensurepip.__main__' (ImportError: cannot import name '_bundled' from partially initialized module 'ensurepip' (most likely due to a circular import) (/usr/lib/python3.9/ensurepip/__init__.py)) vs: $ python3.8 -m ensurepip --version pip 20.0.2 - - Adding --without-pip works to create the venv, but obviously without pip. + Adding --without-pip works to create the venv, but obviously without + pip. Comparing /usr/lib/python3.9/ensurepip/__init__.py with the official cpython, it looks like we don't bundle. Instead, we use common python wheels in /usr/share/python-wheels/. This means that python3.9 would end up sharing the same wheels as python3.8. By commenting out: from . import _bundled - everything seems to work fine. venv creates/activates, pip seemingly - works as expected, despite being an older version. Or at least, it works - well enough to create the venv with --upgrade-deps so that the venv will - then take on current versions instead. + everything works fine. venv creates/activates using the common wheels + made available from python 3.8 (unless the same old versions are also + being bundled with 3.9?) to create the venv with --upgrade-deps so that + it'll take on current versions instead. - Of course, this relies on having the wheels available via python3.8 and - having them be compatible, but it's a temporary fix. - + Of course, this relies on having the wheels available (didn't check if + 3.9 also includes these wheels or if they're pre-existing from 3.8) and + having them be compatible (they target py2.py3 so this should be fine). $ python3.9 -m venv --upgrade-deps venv Collecting pip - Downloading pip-20.2.3-py2.py3-none-any.whl (1.5 MB) - |████████████████████████████████| 1.5 MB 2.8 MB/s + Downloading pip-20.2.3-py2.py3-none-any.whl (1.5 MB) + |████████████████████████████████| 1.5 MB 2.8 MB/s Collecting setuptools - Downloading setuptools-50.3.1-py3-none-any.whl (785 kB) - |████████████████████████████████| 785 kB 17.3 MB/s + Downloading setuptools-50.3.1-py3-none-any.whl (785 kB) + |████████████████████████████████| 785 kB 17.3 MB/s Installing collected packages: pip, setuptools - Attempting uninstall: pip - Found existing installation: pip 20.0.2 - Uninstalling pip-20.0.2: - Successfully uninstalled pip-20.0.2 - Attempting uninstall: setuptools - Found existing installation: setuptools 44.0.0 - Uninstalling setuptools-44.0.0: - Successfully uninstalled setuptools-44.0.0 + Attempting uninstall: pip + Found existing installation: pip 20.0.2 + Uninstalling pip-20.0.2: + Successfully uninstalled pip-20.0.2 + Attempting uninstall: setuptools + Found existing installation: setuptools 44.0.0 + Uninstalling setuptools-44.0.0: + Successfully uninstalled setuptools-44.0.0 Successfully installed pip-20.2.3 setuptools-50.3.1 ziddey@laurie:~/test$ . venv/bin/activate (venv) ziddey@laurie:~/test$ pip list Package Version ------------- ------- pip 20.2.3 pkg-resources 0.0.0 setuptools 50.3.1
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1900211 Title: venv creation fails: ensurepip error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python3.9/+bug/1900211/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
