• [x] I am using Fish shell version 3.1 or higher.
• [x] I am using Python version 3.6 or higher.
• [x] I have searched the issues (including closed ones) and believe that this is not a duplicate.

• OS version and name: macOS Catalina version: 10.15.4
• Fish shell version: 3.1.2
• VirtualFish version: 2.2.3

Issue

I am using VirtualFish for a while but recently I have changed my computer (given by the company) and I needed to configure my environment once again after a long time not doing that.

I have followed the instruction placed in README.md file and unfortunately, I found a problem with triggering the second command 😕 The main problem is that vf command can't be recognized as a global command for my machine. I suppose that this problem can be connected somehow with my computer, not with a particular bug in the library but the installation process with the usage of pip package installer didn't inform me about that 🤷‍♀️

I have installed VirtualFish with the usage of directly run cli.py module with the install argument and it works like a charm 🙌 but I am pretty sure that something should be updated: either documentation or code 🧐

Add environment plugin and documentation

This is built largely on the existing work of shanx in https://github.com/adambrenecki/virtualfish/pull/39 and the ideas in #92 by adambreneck. This should address #92 and my manual testing was successful. Please let me know if there are any improvements that I can make.

I tried doing a brew update and brew upgrade, which updated my python from 3.7 to 3.8. Sadly I see I was not able to uninstall and reinstall vf becuase of the following issue

fish: Unknown command: /usr/local/opt/python/bin/python3.7
/usr/local/lib/python3.7/site-packages/virtualfish/virtual.fish (line 542):
    $python -m virtualfish.loader.installer uninstall
    ^
in function '__vf_uninstall'
        called on line 1 of file /usr/local/lib/python3.7/site-packages/virtualfish/virtual.fish
in function 'vf' with arguments 'uninstall'
VirtualFish has been uninstalled from this shell.
Run 'exec fish' to reload Fish.
Note that the Python package will still be installed and needs to be removed separately (e.g. using 'pip uninstall virtualfish').

Sorry of about my ignorance, after some debug and analysis I see that ~/.confg/fish/conf.d/virtuafish-loader.fish was still pointing to older python in my case 3.7.

How to overcome these issues ?? Is there a way to update vf in cleaner way ?

I installed virtualfish earlier today and it worked fine, but I was having some issues and decided to uninstall and reinstall. Now vf isn't recognized.

config.fish contains: eval (python -m virtualfish)

command line outputs:

fish --version:
fish, version 2.3.1

python -m virtualfish compat_aliases: set -g VIRTUALFISH_VERSION 1.0.5;set -g VIRTUALFISH_PYTHON_EXEC /usr/bin/python;. /Library/Python/2.7/site-packages/virtualfish/virtual.fish;. /Library/Python/2.7/site-packages/virtualfish/compat_aliases.fish;emit virtualfish_did_setup_plugins

functions: ., N_, abbr, alias, assert, assert.error_message, assert.expand_operator, autoload, available, cd, contains_seq, delete-or-exit, dirh, dirs, down-or-search, eval, export, fish-spec, fish_config, fish_default_key_bindings, fish_fallback_prompt, fish_indent, fish_mode_prompt, fish_prompt, fish_sigtrap_handler, fish_update_completions, fish_user_key_bindings, fish_vi_cursor, fish_vi_key_bindings, fish_vi_mode, fisher, fnode, frub, fruby, fsub, fsubl, fuck, funced, funcsave, getopts, git_ahead, git_branch_name, git_is_dirty, git_is_repo, git_is_staged, git_is_stashed, git_is_touched, git_untracked, grep, help, history, hostname, isatty, la, ll, ls, man, math, nextd, nextd-or-forward-word, omf, omf.bundle.add, omf.bundle.install, omf.bundle.remove, omf.channel.get, omf.channel.set, omf.check.fish_prompt, omf.check.version, omf.cli.cd, omf.cli.channel, omf.cli.describe, omf.cli.destroy, omf.cli.doctor, omf.cli.help, omf.cli.install, omf.cli.list, omf.cli.new, omf.cli.reload, omf.cli.remove, omf.cli.search, omf.cli.theme, omf.cli.themes.list, omf.cli.update, omf.cli.version, omf.core.update, omf.destroy, omf.doctor, omf.index.path, omf.index.query, omf.index.repositories, omf.index.stat, omf.index.update, omf.packages.cd, omf.packages.install, omf.packages.list, omf.packages.name, omf.packages.new, omf.packages.path, omf.packages.remove, omf.packages.run_hook, omf.packages.update, omf.packages.valid_name, omf.reload, omf.repo.clone, omf.repo.pull, omf.theme.set, omf.version, omf.xdg.config_home, omf::dim, omf::em, omf::err, omf::off, omf::under, open, popd, prevd, prevd-or-backward-word, prompt_pwd, prompt_segments, psub, pushd, realpath, refresh, require, rvm, seq, setenv, string, suspend, trap, type, umask, up-or-search, vared, z, zo,

pip freeze: altgraph==0.10.2 bdist-mpkg==0.5.0 bonjour-py==0.3 click==6.7 macholib==1.5.1 matplotlib==1.3.1 modulegraph==0.10.4 numpy==1.8.0rc1 pbr==1.10.0 py2app==0.7.3 pyobjc-core==2.5.1 pyobjc-framework-Accounts==2.5.1 pyobjc-framework-AddressBook==2.5.1 pyobjc-framework-AppleScriptKit==2.5.1 pyobjc-framework-AppleScriptObjC==2.5.1 pyobjc-framework-Automator==2.5.1 pyobjc-framework-CFNetwork==2.5.1 pyobjc-framework-Cocoa==2.5.1 pyobjc-framework-Collaboration==2.5.1 pyobjc-framework-CoreData==2.5.1 pyobjc-framework-CoreLocation==2.5.1 pyobjc-framework-CoreText==2.5.1 pyobjc-framework-DictionaryServices==2.5.1 pyobjc-framework-EventKit==2.5.1 pyobjc-framework-ExceptionHandling==2.5.1 pyobjc-framework-FSEvents==2.5.1 pyobjc-framework-InputMethodKit==2.5.1 pyobjc-framework-InstallerPlugins==2.5.1 pyobjc-framework-InstantMessage==2.5.1 pyobjc-framework-LatentSemanticMapping==2.5.1 pyobjc-framework-LaunchServices==2.5.1 pyobjc-framework-Message==2.5.1 pyobjc-framework-OpenDirectory==2.5.1 pyobjc-framework-PreferencePanes==2.5.1 pyobjc-framework-PubSub==2.5.1 pyobjc-framework-QTKit==2.5.1 pyobjc-framework-Quartz==2.5.1 pyobjc-framework-ScreenSaver==2.5.1 pyobjc-framework-ScriptingBridge==2.5.1 pyobjc-framework-SearchKit==2.5.1 pyobjc-framework-ServiceManagement==2.5.1 pyobjc-framework-Social==2.5.1 pyobjc-framework-SyncServices==2.5.1 pyobjc-framework-SystemConfiguration==2.5.1 pyobjc-framework-WebKit==2.5.1 pyOpenSSL==0.13.1 pyparsing==2.0.1 python-dateutil==1.5 pytz==2013.7 scipy==0.13.0b1 six==1.4.1 virtualenv==15.1.0 virtualfish==1.0.5 xattr==0.6.4 zope.interface==4.1.1

According to https://virtualfish.readthedocs.io/en/latest/plugins.html, vf install <plugin> should work, however I get:

$ vf install auto_activation
VirtualFish is already installed! Hooray!

Version is 2.0.1.

$ vf new --python=/usr/local/bin/python3 finance-scraper3
Running virtualenv with interpreter /usr/local/bin/python3
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/virtualenv.py", line 14, in <module>
    import shutil
  File "/usr/local/Cellar/python3/3.4.0/Frameworks/Python.framework/Versions/3.4/lib/python3.4/shutil.py", line 11, in <module>
    import fnmatch
  File "/usr/local/Cellar/python3/3.4.0/Frameworks/Python.framework/Versions/3.4/lib/python3.4/fnmatch.py", line 15, in <module>
    import functools
  File "/usr/local/Cellar/python3/3.4.0/Frameworks/Python.framework/Versions/3.4/lib/python3.4/functools.py", line 21, in <module>
    from collections import namedtuple
  File "/usr/local/Cellar/python3/3.4.0/Frameworks/Python.framework/Versions/3.4/lib/python3.4/collections/__init__.py", line 17, in <module>
    from reprlib import recursive_repr as _recursive_repr
  File "/usr/local/lib/python2.7/site-packages/reprlib.py", line 3, in <module>
    from repr import *
ImportError: No module named 'repr'
Error: The virtualenv wasn't created properly.
virtualenv returned status 1.

Hi, I've started to use your virtualfish and I like it. Would it be possible to add support for postactivate actions? With virtualenvwrapper I can put this into bin/postactivate:

!/bin/bash

This hook is run after this virtualenv is activated.

PROJECT_PATH=/path/to/project export DJANGO_SETTINGS_MODULE=project.settings export PYTHONPATH=$PROJECT_PATH/src cd $PROJECT_PATH

Also, aliases from acvirtualenv to workon might be handy.

Stock Python venv module has an --upgrade function that lets you upgrade virtualenvs created via that, but that doesn't seem to work with virtualfish created venvs. Having a similar mode for vf (e.g., vf upgrade $venv) would be great.

• [x] I have searched the issues (including closed ones) and believe that this is not a duplicate.
• [x] I have searched the documentation and believe that my question is not covered.
• [x] I am willing to lend a hand to help implement this feature.

Feature Request

#113 added (via 9020ed6) a warning message if the name of the virtualenv does not appear in the fish_prompt.

I use the fish_right_prompt to display this piece of information, and thus get the warning on every activation. This is annoying and currently cannot be suppressed other than by patching the source.

What about:

• checking fish_right_prompt as well?
• adding an option (at install time? as an environment variable?) to disable the check overall?

The check in 9020ed6 also has the shortcoming that it wrongly succeeds if e.g. the working directory path contains the name of the virtualenv. But this is IMHO a minor issue.

Both the alias and the original command activate the virtualenv, but only the former doesn't cd to the project dir. Tried both version 1.0.5 and latest from github 1.0.6.dev20+g64f7675 this is what happens to me right now:

~/ workon myproject
(myenv) ~/ deactivate
~/ vf workon myproject
(myenv) ~/d/myproject

These are my related fish config lines:

set -x PROJECT_HOME ~/dev
set -x VIRTUAL_ENV_DISABLE_PROMPT 1  # avoid dupe venv in PS
eval (python -m virtualfish projects compat_aliases)

hi adam,

thanks for your work first! I really like fish and I feel thankful for people who are writing code for it!

I ran into a problem when I activated my first environment:

christoph@christoph ~/k/dev> vf activate myenv
activate myenv
fish: Could not expand string '$argv[0..1]'
/usr/local/bin/virtual.fish (line 49):  echo $argv[0..1]
                                                    ^
in function 'vf',
    called on standard input,
    with parameter list 'activate myenv'

I consulted the fish documentation (I don't know too much about it) and understood your code, but honestly I have no idea why it does not work.

Finally I made a fast but not elegant fix:

        set scargs $argv[2]
        #set scargs $argv[2..-1]

Maybe other people might be affected too? Do you know why the error is popping up?

• [x] I am using Fish shell version 3.1 or higher.
• [x] I am using Python version 3.6 or higher.
• [x] I have searched the issues (including closed ones) and believe that this is not a duplicate.
• [x] If related to a plugin, I prefixed the issue title with the name of the plugin.

• OS version and name: Rolling ArchLinux
• Fish shell version: 3.5.1
• VirtualFish version: 2.5.5

Issue

TL;DR: vf upgrade fails with “sed: can't read : No such file or directory” and I have no idea which file vf is talking about.

I have exactly one virtual environment, toot, that holds the newest version on the PyPI package by the same name.

$ cat ~/.virtualenvs/global_requirements.txt
pip
wheel
setuptools

When I attempted to upgrade the envuironment, all I got was an unhelpful error:

$ vf upgrade toot
Upgrading toot from 3.10.8 to 3.10.8
sed: can't read : No such file or directory

I'm unsure how to proceed.

• [ x] I have searched the issues (including closed ones) and believe that this is not a duplicate.

Issue

The installation instructions assume that the user has an interpreter or path linked to python which is not the case any more on newer macOS systems like macOS Ventura. Therefore to ease installation on these systems I think the installation instructions could be a little bit more clear as my first guess how to handle it on the new systems didn't work.

Steps that I took before installing Virtual Fish

• Install Homebrew
  • Install Fish
  • Install Pyenv
• install apple Xcode command line tools

Installation steps Virtual Fish

As suggested by the docs

• python -m pip install --user virtualfish -> not possible result : fish: Unknown command: python Knowing that python is sometimes linked to python2 and not 3
• python3 -m pip install --user virtualfish -> installation succesfull
• vf install -> fish: Unknown command: vf

My opinion is that an improvement can be made to the docs, do you agree ? Or should the user be aware of installing using venv or something similar?

Docs

So given this information where should virtual fish ideally been installed? I have seen the brew python being used or should the user create a symlink between python and python3? Or should it be installed in each virtual environment?

• [x] I am using Fish shell version 3.1 or higher.
• [x] I am using Python version 3.6 or higher.
• [x] I have searched the issues (including closed ones) and believe that this is not a duplicate.
• [x] If related to a plugin, I prefixed the issue title with the name of the plugin.

• OS version and name: Ubuntu 20.04.5 LTS
• Fish shell version: 3.5.1
• VirtualFish version: 2.5.3

Issue

When creating a venv with python3.10 (in my case 3.10.7), the bin folder is located under <venv>/local/bin/, not simply <venv>/bin. I've looked at the virtualfish source code a bit and it seems this is never explicitly handled, it's just assumed that bin. This is also evidenced by the fact that echoing $PATH shows bin instead of local/bin. And yes, python3.10 is in my path.

To reproduce:

• Install virtualfish
• Install python3.10

• [x] I have searched the issues (including closed ones) and believe that this is not a duplicate.
• [x] If related to a plugin, I prefixed the issue title with the name of the plugin.

Issue

hi there, long time user, was noticing this fancy "broken" descriptor in vf --ls and was curious what it means/what it checks? There doesn't seem to be any mention of what triggers vf as detecting a venv as "broken" and/or what it means for "upgrade" to fix them.

after a bit of troubleshooting, it looks like vf checks the status of python -m pip & throws away the output. I had a few venv's that i had created with --no-pip and that was the issue.

This brings the two previous commits together by adding autocompletions for Python versions installed with Python.org's Mac installer. It adds another valid option to the VIRTUALFISH_PYVERSION_COMPLETION environment variable and an extra function to provide autocompletions of Python versions installed in /Library/Frameworks/Python.framework/Versions

Note that this already includes #220 and #221 because it depends on them. This only adds the extra function in __vfsupport_setup_autocomplete and slightly adjusts the docs.

First, this commit adds detection of Python versions installed via Python.org's Mac OS installers (which are installed in /Library/Frameworks/Python.framework/Versions/). virtualfish will prefer Python.org installations over Homebrew Python, but asdf, pyenv, or pythonz are preferred over Python.org installs.

Second, this commit fixes an issue in how Python versions are deteced when calling vf new -p or vf upgrade -p. Before this commit, virtualfish checked if various executables are available, but didn't continue to search if the specified Python version has not been installed in the first available application. For example, if pyenv is installed but the specified Python version has not been installed with pyenv, virtualfish will directly fall back to pass to Virtualenv as-is instead of continuing the search in, say, pythonz or Homebrew.

While it is unlikely that one would have both pyenv and pythonz installed, continuing to search for a Python version if it hasn't been installed in the first application found is useful with regards to detecting Python.org installs. One might mostly use pyenv, but has issues compiling a particular Python version with it and therefore installs it with Python.org's Mac installer.