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Re: Need a Python 3.8 virtual environment

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Hi Steven,

i tested in a freshly installed virtualbox machine and was able to 
create a virtual environment, using the following steps:

built python3.8.7 form tarball 
(|https://www.python.org/ftp/python/3.8.7/Python-3.8.7.tar.xz)|

ran python3.8 -m venv test387

and then could activate it.

I hope this helps,

Balazs

On 03/03/2021 03:17, Steven Robbins wrote:
> Hi,
>
> I'm trying to use a (non-Debian) python system built on python 3.8.  Debian's
> default is currently 3.9 so I am advised to use a virtual environment.   Being
> a newbie, I searched around and found a writeup covering several different
> virtualization tools [1].   Note I am using Debian 'sid'.
>
> I can use the tool "virtualenv" to create a virtual environment for default
> python:
>
> steve@riemann:/tmp$ virtualenv blah
> created virtual environment CPython3.9.1.final.0-64 in 77ms
>    creator CPython3Posix(dest=/tmp/blah, clear=False, no_vcs_ignore=False,
> global=False)
>    seeder FromAppData(download=False, pip=bundle, setuptools=bundle,
> wheel=bundle, via=copy, app_data_dir=/home/steve/.local/share/virtualenv)
>      added seed packages: pip==20.1.1, pkg_resources==0.0.0,
> setuptools==44.0.0, wheel==0.34.2
>    activators
> BashActivator,CShellActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator
>
>
> But not for python 3.8:
>
> steve@riemann:/tmp$ virtualenv -p python3.8 blah38
> RuntimeError: failed to find interpreter for Builtin discover of
> python_spec='python3.8'
>
>
> I have installed literally all the Debian python packages whose name contains
> 'python3.8'.   A very short list:
>
> ii  libpython3.8:amd64                            3.8.7-1
> amd64        Shared Python runtime library (version 3.8)
> ii  libpython3.8-dev:amd64                        3.8.7-1
> amd64        Header files and a static library for Python (v3.8)
> ii  libpython3.8-minimal:amd64                    3.8.7-1
> amd64        Minimal subset of the Python language (version 3.8)
> ii  libpython3.8-stdlib:amd64                     3.8.7-1
> amd64        Interactive high-level object-oriented language (standard
> library, version 3.8)
> ii  python3.8                                     3.8.7-1
> amd64        Interactive high-level object-oriented language (version 3.8)
> ii  python3.8-dev                                 3.8.7-1
> amd64        Header files and a static library for Python (v3.8)
> ii  python3.8-minimal
>
>
>
> I have also tried the module 'venv':
>
> steve@riemann:/tmp$ python3.8 -m venv v38
> 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
>
> You may need to use sudo with that command.  After installing the python3-venv
> package, recreate your virtual environment.
>
> Failing command: ['/tmp/v38/bin/python3.8', '-Im', 'ensurepip', '--upgrade',
> '--default-pip']
>
> steve@riemann:/tmp$ python3.8 -m venv blah38
> 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
>
> You may need to use sudo with that command.  After installing the python3-venv
> package, recreate your virtual environment.
>
> Failing command: ['/tmp/blah38/bin/python3.8', '-Im', 'ensurepip', '--
> upgrade', '--default-pip']
>
>
> Note that I do have 'python3-venv' installed, but it is the 3.9 version:
> ii  python3-venv                                  3.9.1-1
> amd64        pyvenv-3 binary for python3 (default python3 version)
>
>
> Is there something I've missed?
>
> Thank you,
> -Steve
>
> [1] https://linuxconfig.org/how-to-set-up-a-python-virtual-environment-on-debian-10-buster

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Thread

Need a Python 3.8 virtual environment Steven Robbins <steve@sumost.ca> - 2021-03-03 04:30 +0100
  Re: Need a Python 3.8 virtual environment Jerome Kieffer <Jerome.Kieffer@esrf.fr> - 2021-03-03 08:00 +0100
  Re: Need a Python 3.8 virtual environment Andrey Rahmatullin <wrar@debian.org> - 2021-03-03 08:20 +0100
  Re: Need a Python 3.8 virtual environment Pokoradi Balazs <pokoradi.1899@gmail.com> - 2021-03-03 09:00 +0100
  Re: Need a Python 3.8 virtual environment Nicolas Chauvat <nicolas.chauvat@logilab.fr> - 2021-03-03 10:10 +0100
  Re: Need a Python 3.8 virtual environment Julien Palard <julien@palard.fr> - 2021-03-03 11:50 +0100
    Re: Need a Python 3.8 virtual environment Jeremy Stanley <fungi@yuggoth.org> - 2021-03-03 15:00 +0100
    Re: Need a Python 3.8 virtual environment Steven Robbins <steve@sumost.ca> - 2021-03-04 04:50 +0100
  Re: Need a Python 3.8 virtual environment Yaroslav Halchenko <debian@onerussian.com> - 2021-03-03 14:40 +0100
    Re: Need a Python 3.8 virtual environment Andrey Rahmatullin <wrar@debian.org> - 2021-03-03 14:40 +0100
  Re: Need a Python 3.8 virtual environment Stefano Rivera <stefanor@debian.org> - 2021-03-03 18:40 +0100
    Re: Need a Python 3.8 virtual environment Andrey Rahmatullin <wrar@debian.org> - 2021-03-03 19:00 +0100
      Re: Need a Python 3.8 virtual environment Matthias Klose <doko@debian.org> - 2021-03-03 19:10 +0100
  Re: Need a Python 3.8 virtual environment Karthik <karthikgatiganti@gmail.com> - 2021-03-03 20:00 +0100

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