Trouble with adding pip's system environment variable - python

I was able to install pip by using distribute_setup.py and get-pip.py. However, I had to add pip to path by adding C:\Python27\Scripts.
This worked for a little while but I had to do a system restore for other reasons and now when I type pip in the command prompt it returns: 'pip' is not recognized as an internal or external command.
I tried adding C:\Python27\Scripts to path again both to the user variable and system variable but to no avail. I also tried re-installing pip but it just said I had the latest version installed already. Pip can be imported without any error within python so I am at a loss here. Can anyone help?
Thanks in advance.

Try using easy_install
easy_install -U pip
This will remove pip.
If you don't have easy_install ... installed, do that first.
After uninstalling pip, simply reinstall it using the get-pip.py file.

Related

Can't upgrade pip in windows [duplicate]

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.

How to fix "Python quit unexpectedly" when trying to install a module through pip install? Terminal Crashes with message "zsh: abort"

I think I broke my terminal. For some reason I am unable to use pip install to install anything on my Macbook Pro.
When I try to install such as
pip install Flask
I get
zsh: abort pip install Flask
I've tried both on pip and pip, but I get the same error on both.
Now I am unable to install any python module. I thought it was due to Bash -> zsh from Catalina update but when I changed it to Bash and tried the same, I get the same result.
Any idea how I can fix this? I am unable to do any python work due to needed modules unable to being install now
setting DYLD_LIBRARY_PATH before installing any packages with pip solved the issue for me:
export DYLD_LIBRARY_PATH=/usr/local/Cellar/openssl/1.0.2t/lib
(adjust for a valid openssl path in your system)
I found the solution in this github issue.

`pip install --upgrade pip` fails inside a Windows virtualenv with "Access denied"

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.

Pip Installation Python 3.6.1

I am a beginner in programming with Python. I have installed Python 3.6.1, and when I try to install pip (or any other package), this error appears (both in the command and shell):
install pip
^
SyntaxError: invalid syntax
I tried also with pip -m pip, but nothing, still the same error.
I would be very grateful if you could help me.
To install a Python package, you need to be in the command line as #MohideenibnMohammed suggested. You cannot install a package from within a Python script using pip.
You have installed Python 3.6.1 which will have pip already installed so you don't need to try and install that again.
Next, you need to make sure that Python is added to your PATH.
Open Start Menu and right click My Computer. Click on Advanced System Settings.
Click on Environment Variables
Find the system PATH variable and click Edit. You want to add Python to this PATH variable by adding exactly ;C:\Python36 (assuming that is where you installed Python)
Go back to the command line and type in pip install numpy (you can use pip3 instead of pip if you wish)
I think you are trying to use pip command in python console instead of terminal.
or check your command again .. pip install package
otherwise try this,
use pip3 install package to install instead of pip install package

Did I install pip correctly?

I'm new to python and the tutorial I'm using suggested for me to install four important packages (distribute, pip, nose and virtual env).
I've installed the first two using setup.py in Windows PowerShell
Problem is I can't figure out how to use pip. I've tried doing commands for pip in the cmd, python idle shell and powershell. All of them return something similar to pip is not defined or there is a syntax error
Here's what i type which results to syntax error
pip freeze
pip list --outdated
Anyone know if I've done something wrong installing pip?
Notes:
I'm using Windows 7
I've checked the Python2.7 directory and pip is in the Scripts folder.
I've also used help("modules") in the Python Idle shell and it lists pip in the modules
To add an answer to this question (it was provided in the comments by Joran Beasley), the issue here was that pip installs to the python/Scipts directory, but that was not in the path by default on Windows. Adding C:\Python27\Scripts to the path fixed the issue. This answer describes adding a directory to the path on Windows 7.
if you've ubuntu you have just to install the pip with aptget
sudo apt-get install python-pip

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