On Windows, if you try to use pip to upgrade itself, inside a virtualenv, you may get a mysterious "access is denied" error. For instance:
D:\scratch\> C:\Program Files\Python\3.7.4\x64\python.exe -m venv D:\scratch\my-venv
D:\scratch\> D:\scratch\my-venv\Scripts\activate
(my-venv) D:\scratch\> pip install --upgrade pip
Collecting pip
Downloading pip-19.3.1-py2.py3-none-any.whl (1.4MB)
Installing collected packages: pip
Found existing installation: pip 19.0.3
Uninstalling pip-19.0.3:
Could not install packages due to an EnvironmentError:
[WinError 5] Access is denied: 'd:\\scratch\\my-venv\\scripts\\pip.exe'
Consider using the `--user` option or check the permissions.
This happens whether or not the command prompt has administrative privileges.
We know we have write access to everything inside d:\scratch\my-venv, because we just created it with the initial python -m venv command. The advice to use the --user option is unhelpful, since we want to upgrade the version of pip inside the virtualenv, which --user will not do.
What could be wrong, and what is the correct way to upgrade pip inside a virtualenv on Windows?
I don't know if this is the only reason this can happen, but notice that the "Access is denied" error points at d:\scratch\my-venv\scripts\pip.exe. pip is trying to replace itself, and Windows doesn't allow you to modify a running EXE file in any way.
A workaround for this specific problem is to use python -m pip install --upgrade pip instead. This way, pip.exe is not running, so Windows will allow it to be replaced. This action doesn't try to overwrite d:\scratch\my-venv\scripts\python.exe, and Windows doesn't care what pip does to all the other files belonging to the pip package.
See https://github.com/pypa/pip/issues/188 and https://github.com/pypa/pip/issues/1299 for further information.
You must have the same version of pip installed in windows as in the virtual env. I think that is the reason for the error Access Denied in Virtual Env.
in promt,
python -m pip install --upgrade pip
located in the Scripts folder of the virtual env, execute the update command upgrade pip in venv
I would have put this in a comment to zwol's answer, but I don't have enough reputation yet.
I just wanted to add to anyone else potentially coming across this from google like I did, that python -m pip install --upgrade pip did fix this issue for me. However if you try pip install --upgrade pip before doing that, something happens in the process before you hit the access denied error that messes up pip. I personally was getting ModuleNotFoundError: No module named 'pip' after trying to upgrade the normal way.
Once I deleted and restarted my virtualenv and had the first command be python -m pip install --upgrade pip It worked just fine.
I hope that helps other newbies out there struggling like me! :)
Same error for me, but in both conditions: my system pip and virtualenv pip. So, when I tried to upgrade my system pip, hopefully it wasn't like totally deleted, I could still use the "pip" command. However I know the upgrade system pip failed. When I tried the command again, it said pip was on the latest version. Maybe this is just a glitch. I believe it is the same for virtual environments(virtualenv, venv). When I upgrade the system pip I get this error:
ERROR: Could not install packages due to an OSError: [WinError 5] Access is denied: 'C:\\Users\\heewo\\AppData\\Local\\Temp\\pip-uninstall-8ob_krif\\pip.exe'
Consider using the `--user` option or check the permissions.
I know this is not normal. But still, different than the virtualenv, "pip" is still installed. I believe this is still ignorable as this is just a known issue and most people here know about this topic. For me, python -m pip install --upgrade pip did not work in this state.
I tried this method, and this did work for me.
virtualenv --pip [VERSION]
and replace VERSION with the latest version available on pip. This prints out that what version you are attempting to upgrade to, when you get the error.
And that should do the trick.
Related
I'm confused by the intended pip usage. Pip comes installed with Python, which is great, but I get the following warnings when new versions come out:
WARNING: You are using pip version 21.1.1; however, version 21.1.3 is available.
You should consider upgrading via the '/usr/local/opt/python#3.8/bin/python3.8 -m pip install --upgrade pip' command.
I follow the instructions to install it using the command they gave. But then it uninstalls my existing pip and is not able to install the new version.
Installing collected packages: pip
Attempting uninstall: pip
Found existing installation: pip 21.1.1
Uninstalling pip-21.1.1:
ERROR: Could not install packages due to an OSError: Cannot move the non-empty directory '/usr/local/lib/python3.8/site-packages/pip-21.1.1.dist-info/': Lacking write permission to '/usr/local/lib/python3.8/site-packages/pip-21.1.1.dist-info/'.
The pip command is now unrecognized, and the official documentation for upgrading pip suggests running:
python -m pip install -U pip
which gives the same permission error.
I Google this error, and found that the community highly advises to not sudo from these questions (this and this). They also advised pip3 install --upgrade pip --user which also gave the same error. The common consensus is to only install pip packages inside virtual environments, but I'm hesitant to have pip completely uninstalled.
So I got pip to install using sudo, but it's unclear whether I've inadvertently affected (or will affect future) system-wide installations, or how I'd check for these.
I don't understand why installing pip inside /usr/local/ requires sudo, and whether I should only be using pip exclusively inside virtual environments and never outside it
pip can be installed with sudo, into a folder that you don't have permissions to write to. However, it can install packages outside of that folder (and thus, into a folder you have write permissions). However, it is recommended that you don't install pip into a root folder, and instead install it into your home directory.
The command to install pip as root is
sudo apt-get install pip
It should then prompt you for your password. I recommend using sudo whenever you install something.
OS: Windows 10, 64-bit
Python: 3.9.1
Pip: 21.0.1
Editor: JetBrains Pycharm 2020.3.3
I have cloned a private GitHub repository via Pycharm and created the project's venv as usual after selecting my project interpreter. Ran python -m pip install -U --force-reinstall pip setuptools wheel after. Versions of all modules are up-to-date.
Pycharm automatically activates the created venv, so there is no need to manually activate it.
When running python -m pip install -r requirements.txt, this error (seemingly) randomly occurs:
ERROR: Could not install packages due to an OSError: [WinError 5] Access is denied: {file_path within venv}
Consider using the `--user` option or check the permissions.
I have checked for this error, and all sources seem to imply a permission mismatch, but I cannot figure out why there would be any.
So, I opened cmd as admin, navigated to my project folder and activated the venv through .\venv\Scripts\activate. There was no issue here.
Naturally, I ran python -m pip install -U --force-reinstall -r requirements.txt and the same error still occurred - even with admin permissions. (pip seems to fail randomly - sometimes e.g. numpy is able to be installed, sometimes not)
What could I try next in order to make it work? Have I made any mistakes so far? How could I proceed?
EDIT:
Using the --user flag does not work. ERROR: Can not perform a '--user' install. User site-packages are not visible in this virtualenv.
EDIT 2:
Deleting the venv directory, and reinstalling it with the following commands seems to have fixed the issue when installing the project requirements for the first time:
python -m venv .\venv
.\venv\Scripts\activate
python -m pip install -U --force-reinstall pip setuptools wheel
python -m pip install -r requirements.txt
The project is able to be run now, but out of curiosity, I tried running this command again:
python -m pip install -U --force-reinstall -r requirements.txt
The error still occurs, so it doesn't seem like the issue is fixed by recreating the venv, but at least the project can be run now. Not closing the question myself, as the "actual problem" does not seem to be fixed.
You probably have the problem, that sometimes code doesn't work due to a very long path.
Try to reinstall python(/the venv python) and search for a point where you can check a box so that the path isn't limited anymore
I always install packages with the command "python -m pip install " in cmd. Today I got the notification that I am using pip and pip 20.1.1 can be installed by typing "python -m pip install --upgrade pip". I did that and now pip fails to install or uninstall programmes. This is the error message I get when trying to install a new package.
ImportError: cannot import name 'webencodings' from 'pip._vendor' (C:\Users\user\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pip\_vendor\__init__.py)
I am a complete beginner and don't want to mess to much with the pip directory, is there an easy solution for my problem?
It looks like this has been happening with pip 20+ when your "system" pip install gets incorrectly upgraded -- it's honestly pretty messed up that the default upgrade command that pip itself tells you to use does this "wrong" upgrade.
See this issue for a detailed discussion, a bunch of related issues, and some workarounds. This more recent report has a bunch of people reporting the same for pip20.
Potentially the easiest solution is to uninstall it:
python -m pip uninstall pip
Which should bring you back to the "system" pip installation. And then just ignore the warning, or only work inside virtualenvs, where you shuold be able to safely use updated pip.
Another possible workaround is to install an older version manually using the get-pip script:
python get-pip.py pip==19.3.1
Note: If anyone has better advice please feel free to comment / correct me.
On Windows, if you try to use pip to upgrade itself, inside a virtualenv, you may get a mysterious "access is denied" error. For instance:
D:\scratch\> C:\Program Files\Python\3.7.4\x64\python.exe -m venv D:\scratch\my-venv
D:\scratch\> D:\scratch\my-venv\Scripts\activate
(my-venv) D:\scratch\> pip install --upgrade pip
Collecting pip
Downloading pip-19.3.1-py2.py3-none-any.whl (1.4MB)
Installing collected packages: pip
Found existing installation: pip 19.0.3
Uninstalling pip-19.0.3:
Could not install packages due to an EnvironmentError:
[WinError 5] Access is denied: 'd:\\scratch\\my-venv\\scripts\\pip.exe'
Consider using the `--user` option or check the permissions.
This happens whether or not the command prompt has administrative privileges.
We know we have write access to everything inside d:\scratch\my-venv, because we just created it with the initial python -m venv command. The advice to use the --user option is unhelpful, since we want to upgrade the version of pip inside the virtualenv, which --user will not do.
What could be wrong, and what is the correct way to upgrade pip inside a virtualenv on Windows?
I don't know if this is the only reason this can happen, but notice that the "Access is denied" error points at d:\scratch\my-venv\scripts\pip.exe. pip is trying to replace itself, and Windows doesn't allow you to modify a running EXE file in any way.
A workaround for this specific problem is to use python -m pip install --upgrade pip instead. This way, pip.exe is not running, so Windows will allow it to be replaced. This action doesn't try to overwrite d:\scratch\my-venv\scripts\python.exe, and Windows doesn't care what pip does to all the other files belonging to the pip package.
See https://github.com/pypa/pip/issues/188 and https://github.com/pypa/pip/issues/1299 for further information.
You must have the same version of pip installed in windows as in the virtual env. I think that is the reason for the error Access Denied in Virtual Env.
in promt,
python -m pip install --upgrade pip
located in the Scripts folder of the virtual env, execute the update command upgrade pip in venv
I would have put this in a comment to zwol's answer, but I don't have enough reputation yet.
I just wanted to add to anyone else potentially coming across this from google like I did, that python -m pip install --upgrade pip did fix this issue for me. However if you try pip install --upgrade pip before doing that, something happens in the process before you hit the access denied error that messes up pip. I personally was getting ModuleNotFoundError: No module named 'pip' after trying to upgrade the normal way.
Once I deleted and restarted my virtualenv and had the first command be python -m pip install --upgrade pip It worked just fine.
I hope that helps other newbies out there struggling like me! :)
Same error for me, but in both conditions: my system pip and virtualenv pip. So, when I tried to upgrade my system pip, hopefully it wasn't like totally deleted, I could still use the "pip" command. However I know the upgrade system pip failed. When I tried the command again, it said pip was on the latest version. Maybe this is just a glitch. I believe it is the same for virtual environments(virtualenv, venv). When I upgrade the system pip I get this error:
ERROR: Could not install packages due to an OSError: [WinError 5] Access is denied: 'C:\\Users\\heewo\\AppData\\Local\\Temp\\pip-uninstall-8ob_krif\\pip.exe'
Consider using the `--user` option or check the permissions.
I know this is not normal. But still, different than the virtualenv, "pip" is still installed. I believe this is still ignorable as this is just a known issue and most people here know about this topic. For me, python -m pip install --upgrade pip did not work in this state.
I tried this method, and this did work for me.
virtualenv --pip [VERSION]
and replace VERSION with the latest version available on pip. This prints out that what version you are attempting to upgrade to, when you get the error.
And that should do the trick.
After performing a system upgrade this morning, I'm not able to install or update packages in any of my old or fresh created virtual environments.
I create the virtual environments using virtualenvwrapper.
I've tried rebooting my PC, recreating all of my virtual environments, but nothing worked.
Strange enough, pip freeze does not output my installed packages, although they are found in sitepackages.
Im using python3.7 on manjaro linux with the newest kernel.
In my envs and on my system pip 19.2.3 is installed.
The error I'm seeing is the following:
pip install <package>
ERROR: Can not perform a '--user' install. User site-packages are not visible in this virtualenv.
When trying to use the system pip without virtualenv, everything works just fine.
pip install cython
Requirement already satisfied: cython in /home/manuel/.local/lib/python3.7/site-packages (0.29.13
I expect pip to install the desired package to the sitepackages folder of my virtualenv without telling me to not use a '--user' install, which I'm not doing explicitly anyway
I was able to fix this myself.
I checked all the pip config files here https://pip.pypa.io/en/latest/user_guide/#configuration
Seems like in the pip configuration file /etc/pip.conf the user parameter was set to true.
Changing it to false resolved my issue.
I still don't know why/if the config file changed.