Bug 1386134

Run into this today.

A workaround is to add these lines to your .bashrc before sourcing virtualenvwrapper.sh (or virtualenvwrapper_lazy.sh):


# https://bugzilla.redhat.com/show_bug.cgi?id=1402486
# https://bugzilla.redhat.com/show_bug.cgi?id=1386134
VIRTUALENVWRAPPER_PYTHON="$(command which python3)"
VIRTUALENVWRAPPER_VIRTUALENV="py3-virtualenv"
VIRTUALENVWRAPPER_VIRTUALENV_CLONE="virtualenv-clone-3"



Note that there is a problem also with VIRTUALENVWRAPPER_VIRTUALENV_CLONE, which is used by the `cpvirtualenv` command.




I think those should be the default fallback values defined in /usr/bin/virtualenvwrapper.sh (provided by python3-virtualenvwrapper):



--- /usr/bin/virtualenvwrapper.sh	2015-08-23 16:50:42.000000000 +0200
+++ /tmp/virtualenvwrapper.sh	2017-01-05 11:28:07.667318278 +0100
@@ -47,19 +47,19 @@
 # Locate the global Python where virtualenvwrapper is installed.
 if [ "$VIRTUALENVWRAPPER_PYTHON" = "" ]
 then
-    VIRTUALENVWRAPPER_PYTHON="$(command \which python)"
+    VIRTUALENVWRAPPER_PYTHON="$(command which python3)"
 fi
 
 # Set the name of the virtualenv app to use.
 if [ "$VIRTUALENVWRAPPER_VIRTUALENV" = "" ]
 then
-    VIRTUALENVWRAPPER_VIRTUALENV="virtualenv"
+    VIRTUALENVWRAPPER_VIRTUALENV="py3-virtualenv"
 fi
 
 # Set the name of the virtualenv-clone app to use.
 if [ "$VIRTUALENVWRAPPER_VIRTUALENV_CLONE" = "" ]
 then
-    VIRTUALENVWRAPPER_VIRTUALENV_CLONE="virtualenv-clone"
+    VIRTUALENVWRAPPER_VIRTUALENV_CLONE="virtualenv-clone-3"
 fi
 
 # Define script folder depending on the platorm (Win32/Unix)

I wonder if it would it make more sense to have two virtualenvwrapper.sh files:

- virtualenvwrapper-3.sh that's set up to use py3 stuff
- virtualenvwrapper-2.sh that's set up to use py2 stuff

The packaging guidelines do mention that something of the sort should be done:

https://fedoraproject.org/wiki/Packaging:Python#Naming

If executables are to be shipped for both python 2 and python 3:

- Both python 2 and python 3 variants must provide symlinks with a '-X' and '-X.Y' suffix (python runtime major version, or python runtime major.minor version), unless upstream already provides appropriately versioned executables without the dash.
- The unversioned executable must be the python2 version.
- For example, the python3 version of "coverage" must ship executables /usr/bin/coverage-3 and /usr/bin/coverage-3.4 (assuming python3 is currently version 3.4), while the python2 version must provide /usr/bin/coverage, /usr/bin/coverage-2 and /usr/bin/coverage-2.7 (assuming python2 version 2.7). 

That would solve these issues?

Having different executables would be fine, though, at least at the time of my previous comments, there were also small code changes needed. Haven't checked since then.

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Resurrecting this due to the fact that it is still an issue.

As fedora drags kicking and screaming into being all python3 by default, i think we seriously need to get this fixed. 

Beyond this just not working correctly, it also creates Python2 virtual environments by default! I'll try and evaluate whether or not that warrants another bug.

Also, I think we should continue the discussion about the same defaults above, now that 3.6 recommends using `python -m venv` over all other virutalenv solutions. (What about clone?)

*** Bug 1402486 has been marked as a duplicate of this bug. ***

The project ideally should take advantage of python 3's venv module [0] for the python3 venvs. 

A temporary workaround would be the changes proposed at comment 1 and 2.

[0] https://bitbucket.org/virtualenvwrapper/virtualenvwrapper/issues/309/python-36-depreciation

I like the idea mentioned in the first two comments here so I created a new topic in Virtualenvwrapper google groups to discuss it. I am also willing to implement the proposed idea. https://groups.google.com/forum/#!topic/virtualenvwrapper/XTUliDcLnEk

In the meantime, I'll use mentioned patch to change fallback values in shell script provided by python3- subpackage and I'll also address naming rules violations.

I've implemented mentioned functionality in a downstream patch. Pull request is here: https://src.fedoraproject.org/rpms/python-virtualenvwrapper/pull-request/1

Feel free to do a review and/or test it.

Scratch build: https://koji.fedoraproject.org/koji/taskinfo?taskID=25832320

Thanks a bunch for that!

python-virtualenvwrapper-4.8.2-4.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-1c442d645a

python-virtualenvwrapper-4.8.2-4.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-1c442d645a

python-virtualenvwrapper-4.8.2-4.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.