I'm trying to fix up one of my virtualenvs - I'd like to reset all of the installed libraries back to the ones that match production.
Is there a quick and easy way to do this with pip?
I'm trying to fix up one of my virtualenvs - I'd like to reset all of the installed libraries back to the ones that match production.
Is there a quick and easy way to do this with pip?
I've found this snippet as an alternative solution. It's a more graceful removal of libraries than remaking the virtualenv:
pip freeze | xargs pip uninstall -y
In case you have packages installed via VCS, you need to exclude those lines and remove the packages manually (elevated from the comments below):
pip freeze | grep -v "^-e" | xargs pip uninstall -y
This will work for all Mac, Windows, and Linux systems. To get the list of all pip packages in the requirements.txt file (Note: This will overwrite requirements.txt if exist else will create the new one, also if you don't want to replace old requirements.txt then give different file name in the all following command in place requirements.txt).
pip freeze > requirements.txt
Now to remove one by one
pip uninstall -r requirements.txt
If we want to remove all at once then
pip uninstall -r requirements.txt -y
If you're working on an existing project that has a requirements.txt
file and your environment has diverged, simply replace requirements.txt
from the above examples with toberemoved.txt
. Then, once you have gone through the steps above, you can use the requirements.txt
to update your now clean environment.
And For single command without creating any file (As @joeb suggested).
pip uninstall -y -r <(pip freeze)
I wanted to elevate this answer out of a comment section because it's one of the most elegant solutions in the thread. Full credit for this answer goes to @joeb.
pip uninstall -y -r <(pip freeze)
This worked great for me for the use case of clearing my user packages folder outside the context of a virtualenv which many of the above answers don't handle.
Edit: Anyone know how to make this command work in a Makefile?
I add this to my bash profile for convenience:
alias pipuninstallall="pip uninstall -y -r <(pip freeze)"
Then run:
pipuninstallall
If you happen to be using pipenv you can just run:
pipenv uninstall --all
On Windows if your path
is configured correctly, you can use:
pip freeze > unins && pip uninstall -y -r unins && del unins
It should be a similar case for Unix-like systems:
pip freeze > unins && pip uninstall -y -r unins && rm unins
Just a warning that this isn't completely solid as you may run into issues such as 'File not found' but it may work in some cases nonetheless
EDIT: For clarity: unins
is an arbitrary file which has data written out to it when this command executes: pip freeze > unins
That file that it written in turn is then used to uninstall the aforementioned packages with implied consent/prior approval via pip uninstall -y -r unins
The file is finally deleted upon completion.
I managed it by doing the following:
Create the requirements file called reqs.txt with currently installed packages list
pip freeze > reqs.txt
then uninstall all the packages from reqs.txt
pip uninstall \
-y # remove the package without prompting for confirmation
-r reqs.txt
I like this method as you always have a pip requirements file to fall back on should you make a mistake. It's also repeatable, and works on Linux and Windows
Its an old question I know but I did stumble across it so for future reference you can now do this:
pip uninstall [options] <package> ...
pip uninstall [options] -r <requirements file> ...
-r, --requirement file
Uninstall all the packages listed in the given requirements file. This option can be used multiple times.
from the pip documentation version 8.1
(adding this as an answer, because I do not have enough reputation to comment on @blueberryfields 's answer)
@blueberryfields 's answer works well, but fails if there is no package to uninstall (which can be a problem if this "uninstall all" is part of a script or makefile). This can be solved with xargs -r
when using GNU's version of xargs
:
pip freeze --exclude-editable | xargs -r pip uninstall -y
from man xargs
:
-r, --no-run-if-empty
If the standard input does not contain any nonblanks, do not run the command. Normally, the command is run once even if there is no input. This option is a GNU extension.
Cross-platform support by using only pip
:
#!/usr/bin/env python
from sys import stderr
from pip.commands.uninstall import UninstallCommand
from pip import get_installed_distributions
pip_uninstall = UninstallCommand()
options, args = pip_uninstall.parse_args([
package.project_name
for package in
get_installed_distributions()
if not package.location.endswith('dist-packages')
])
options.yes = True # Don't confirm before uninstall
# set `options.require_venv` to True for virtualenv restriction
try:
print pip_uninstall.run(options, args)
except OSError as e:
if e.errno != 13:
raise e
print >> stderr, "You lack permissions to uninstall this package.
Perhaps run with sudo? Exiting."
exit(13)
# Plenty of other exceptions can be thrown, e.g.: `InstallationError`
# handle them if you want to.
If you're running virtualenv
:
virtualenv --clear </path/to/your/virtualenv>
for example, if your virtualenv is /Users/you/.virtualenvs/projectx
, then you'd run:
virtualenv --clear /Users/you/.virtualenvs/projectx
if you don't know where your virtual env is located, you can run which python
from within an activated virtual env to get the path
In Command Shell of Windows, the command
pip freeze | xargs pip uninstall -y
won't work. So for those of you using Windows, I've figured out an alternative way to do so.
pip freeze
command to a .txt file.pip uninstall -r *textfile.txt*
I simply wanted to remove packages installed by the project, and not other packages I've installed (things like neovim
, mypy
and pudb
which I use for local dev but are not included in the app requirements). So I did:
cat requirements.txt| sed 's/=.*//g' | xargs pip uninstall -y
which worked well for me.
This works on my windows system
pip freeze > packages.txt && pip uninstall -y -r packages.txt && del packages.txt
The first part pip freeze > packages.txt
creates a text file with list of packages installed using pip along with the version number
The second part pip uninstall -y -r packages.txt
deletes all the packages installed without asking for a confirmation prompt.
The third part del packages.txt
deletes the just now created packages.txt.
Pip has no way of knowing what packages were installed by it and what packages were installed by your system's package manager. For this you would need to do something like this
for rpm-based distros (replace python2.7 with your python version you installed pip with):
find /usr/lib/python2.7/ |while read f; do
if ! rpm -qf "$f" &> /dev/null; then
echo "$f"
fi
done |xargs rm -fr
for a deb-based distribution:
find /usr/lib/python2.7/ |while read f; do
if ! dpkg-query -S "$f" &> /dev/null; then
echo "$f"
fi
done |xargs rm -fr
then to clean up empty directories left over:
find /usr/lib/python2.7 -type d -empty |xargs rm -fr
I found the top answer very misleading since it will remove all (most?) python packages from your distribution and probably leave you with a broken system.