What is the easiest way to remove all packages installed by pip

Question

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

User · Answer

The quickest way is to remake the virtualenv completely   I m assuming you have a requirements txt file that matches production  if not     On production  pip freeze  gt  reqs txt    On your machine  rm  VIRTUALENV DIRECTORY mkdir  VIRTUALENV DIRECTORY pip install -r reqs txt

User · Answer

I use the --user option to uninstall all the packages installed in the user site  pip3 freeze --user   xargs pip3 uninstall -y

User · Answer

This is the command that works for me   pip list   awk   print  1     xargs pip uninstall -y

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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  lt  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   Bonus  A bash alias  I add this to my bash profile for convenience   alias pipuninstallall  pip uninstall -y -r  lt  pip freeze     Then run   pipuninstallall   Alternative for pipenv  If you happen to be using pipenv you can just run   pipenv uninstall --all

User · Answer

Its an old question I know but I did stumble across it so for future reference you can now do this   pip uninstall  options   lt package gt      pip uninstall  options  -r  lt requirements file gt           -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

User · Answer

First  add all package to requirements txt  pip freeze  gt  requirements txt   Then remove all  pip uninstall -y -r requirements txt

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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

User · Answer

On Windows if your path is configured correctly  you can use   pip freeze  gt  unins  amp  amp  pip uninstall -y -r unins  amp  amp  del unins   It should be a similar case for Unix-like systems   pip freeze  gt  unins  amp  amp  pip uninstall -y -r unins  amp  amp  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  gt  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

User · Answer

pip3 freeze --local   xargs pip3 uninstall -y   The case might be that one has to run this command several times to get an empty pip3 freeze --local

User · Answer

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  gt  gt  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

User · Answer

For Windows users  this is what I use on Windows PowerShell   pip uninstall -y  pip freeze

User · Answer

Method 1  with pip freeze   pip freeze   xargs pip uninstall -y   Method 2  with pip list   pip list   awk   print  1     xargs pip uninstall -y   Method 3  with virtualenv   virtualenv --clear MYENV

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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

User · Answer

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   amp  gt   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   amp  gt   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

User · Answer

This works with the latest  I think it s the shortest and most declarative way to do it   virtualenv --clear MYENV   But usually I just delete and recreate the virtualenv since immutability rules

User · Answer

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

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the easy robust way cross-platform and work in pipenv as well is   pip freeze  pip uninstall -r requirement   by pipenv   pipenv run pip freeze  pipenv run pip uninstall -r requirement   but won t update piplock or pipfile so be aware

User · Answer

This was the easiest way for me to uninstall all python packages     from pip import get installed distributions from os import system for i in get installed distributions        system  pip3 uninstall    -y -q  format i key

User · Answer

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  gt  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  lt  pip freeze

User · Answer

I managed it by doing the following    Create the requirements file called reqs txt with currently installed packages list  pip freeze  gt  reqs txt   then uninstall all the packages from reqs txt  pip uninstall      -y   remove the package with 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

User · Answer

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     Copy all the names of the installed packages of pip from the pip freeze command to a  txt file  Then  go the location of your  txt file and run the command pip uninstall -r  textfile txt

User · Answer

If you re running virtualenv   virtualenv --clear  lt  path to your virtualenv gt    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

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If you are using pew  you can use the wipeenv command   pew wipeenv  env

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In my case  I had accidentally installed a number of packages globally using a Homebrew-installed pip on macOS  The easiest way to revert to the default packages was a simple     brew reinstall python   Or  if you were using pip3     brew reinstall python3

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Other answers that use pip list or pip freeze must include --local else it will also uninstall packages that are found in the common namespaces    So here are the snippet I regularly use   pip freeze --local   xargs pip uninstall -y   Ref  pip freeze --help

User · Answer

Using virtualenvwrapper function   wipeenv   See wipeenv documentation

[python] What is the easiest way to remove all packages installed by pip?

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