I know this question has been asked and answered a number of times but none of those solutions have worked for me. I have installed Python 2.7 into a local directory and added it to my path. When I try to install numpy i get the following error:
ImportError: No module named setuptools
I cannot simply sudo apt-get install python-setuptools because i don't have root access.
I need to install numpy and ideally have pip working for future applications.
0) Try to install packages that are isolated to the current user, use the --user flag:
pip install --user SomeProject
1a) I agree with #Pi Marillion here, use an isolated conda environment if you don't have root access. This way you keep your path clean.
To install conda:
Since I don't know about your OS, go to https://docs.conda.io/en/latest/miniconda.html
After installation, update your conda (just in case):
conda update conda
To list the installed packages, you can do
conda list
You should see python installed. you can start an interpreter by typing python in the terminal.
There's conda cheat sheet that I found incredibly helpful:
https://docs.conda.io/projects/conda/en/latest/user-guide/cheatsheet.html
b) Now try installing via pip and I think you might need python 3.x for setuptools.
https://packaging.python.org/tutorials/installing-packages/#id13
2) If this does not work you can still try
https://packaging.python.org/guides/installing-stand-alone-command-line-tools/
Hope this helps :)
First try easy_install --user setuptools pip. If that doesn't work you need to install things manually.
Download setuptools-*.zip from https://pypi.org/project/setuptools/#files. Unzip the archive, cd into the new directory and run python2.7 setup.py install.
Then try pip install. If it still doesn't work reinstall pip: download get-pip.py and run python get-pip.py --user.
I am trying to install jupyter on mac,
I understand that the mac comes with python version installed
But i also installed brew and installed python through brew.
When i check python location i get:
which python
/usr/bin/python
When i check pip location i get:
which pip
/usr/local/bin/pip
When i try to install jupyter:
pip install install
after a long installation it tried to remove python package that it want's to upgrade
And fails:
On trying to uninstall dateutil.
I think its the mac packages.
I tried with sudo, no change.
As far as i can understand it because the files are immutable.
Tried to remove the immutable with:
chflags uchg.
No change.
I also tried to work with virtual env, using:
sudo pip install virtualenvwrapper.
But that pip tries to uninstall another python folder.
Any suggestions?
Thanks
UPDATE:
The brew seems to create links from python2. to python2
And the same for python3.
I tried to create the link myself, It worked and i was manage to install the package i wanted. But its not a good solution,
The all point of brew is to manage this things for me, next time i will upgrade python it will break.
Any suggestions why? could it be because the brew installed two python version on my laptop?
RESOLVED:
Found the answer, thanks to #tdube question i went and looked what brew guys did to python and found this thread from Jan 17.
I turns out that they changed the behavior or installing python.
No you don't have simply python any more.
You have python2 and python3.
No more simply pip, now you have pip2 and pip3.
That is a major change from the default behavior of how people use python
Especially that mac comes with a default python
so now you have
python that is /usr/bin/python
python2 that is /usr/local/bin/python2
python3 that is /usr/local/bin/python3
this is the fix, the brew guys suggest ( you can see it when running brew info python ):
==> Caveats
This formula installs a python2 executable to /usr/local/bin.
If you wish to have this formula's python executable in your PATH then add
the following to ~/.zshrc:
export PATH="/usr/local/opt/python/libexec/bin:$PATH"
Pip and setuptools have been installed. To update them
pip2 install --upgrade pip setuptools
You can install Python packages with
pip2 install <package>
They will install into the site-package directory
/usr/local/lib/python2.7/site-packages
See: http://docs.brew.sh/Homebrew-and-Python.html
You can read about it in this thread:
The Python that comes "pre-installed" on Mac is located in /usr/bin/python. I think you need to change the order of the entries in your PATH environment variable as noted here (python homebrew by default). Which file your PATH is set in depends on which shell you are using.
I am using a form of Lubuntu called GalliumOS (optimized for Chromebooks). I installed pip using $ sudo apt-get install python-pip. I then used pip install --user virtualenv and pip install virtualenv, and then when I tried to subsequently use virtualenv venv I experienced the message bash: virtualenv: command not found.
Between the pip installs above, I used pip uninstall virtualenv to get back to square one. The error remained after a reinstall.
I read several other posts, but all of them seemed to deal with similar problems on MacOS. One that came close was installing python pip and virtualenv simultaneously. Since I had already installed pip, I didn't think that these quite applied to my issue. Why is pip install virtualenv not working this way on LUbuntu / GalliumOS?
Are you sure pip install is "failing"? To me, it sounds like the directory to which pip is installing modules on your machine is not in your PATH environment variable, so when virtualenv is installed, your computer has no idea where to find it when you just type in virtualenv.
Find where pip is installing things on your computer, and then check if the directory where the pyenv executable is placed is in your PATH variable (e.g. by doing echo $PATH to print your PATH variable). If it's not, you need to update your PATH variable by adding the following to your .bashrc or .bash_profile or etc.:
export PATH="PATH_TO_WHERE_PIP_PUTS_EXECUTABLES:$PATH"
What finally worked for me was this. I used
$ sudo apt-get install python-virtualenv.
I was then able to create a virtual environment using $ virtualenv venv.
I was seeking to avoid using $ sudo pip install virtualenv, because of admonitions in other posts to not do this, and agreed, because of experiences I'd had with subsequent difficulties when doing this.
pip install virtualenv
This command worked for me for. This problem that raised to me on Kali Linux.
I am using Windows 10. Currently, I have Python 2.7 installed. I would like to install Python 3.5 as well. However, if I have both 2.7 and 3.5 installed, when I run pip, how do I get the direct the package to be installed to the desired Python version?
You will have to use the absolute path of pip.
E.g: if I installed python 3 to C:\python35, I would use:
C:\> python35\Scripts\pip.exe install packagename
Or if you're on linux, use pip3 install packagename
If you don't specify a full path, it will use whichever pip is in your path.
Because usually i change my intepreter to run something(i got 2 diff projects with both 2 and 3), i use these solution:
Add path to the environment as usual (of course)
Rename ur python.exe , in my case i want to run python 3 using command python3 on my cmd. So i renamed my python.exe in python3.x directory with python3. Itll works with python 2 ofc.
Then to use pip in both python, i use this command.
python3 -m pip install 'somepackage'
and to run pip on python2
python -m pip install 'somepackage'
This is may not the best solution out there, but i like this one
** WINDOWS **
ref : https://datascience.com.co/how-to-install-python-2-7-and-3-6-in-windows-10-add-python-path-281e7eae62a
In my case, I have Python 2.7 and Python 3.4, with the Python Launcher for Windows.
This is the output when running this commands:
PS C:\> pip -V
pip 9.0.1 from c:\python27\lib\site-packages (python 2.7)
PS C:\> pip3 -V
pip 9.0.1 from C:\Python34\lib\site-packages (python 3.4)
I'll note that in my Python27\Scripts\ directory, I have pip.exe, pip2.exe and pip2.7.exe.
And in my Python34\Scripts\ directory, I have pip.exe, pip3.exe and pip3.4.exe.
So all of these .exe files help you when you have different versions of Python installed at the same time.
Of course, for this to work, you have to have the respective Scriptsdirectries in your Path system enviroment variable.
The answer from Farhan.K will work. However, I think a more convenient way would be to rename python35\Scripts\pip.exe to python35\Scripts\pip3.exe assuming python 3 is installed in C:\python35.
After renaming, you can use pip3 when installing packages to python v3 and pip when installing packages to python v2. Without the renaming, your computer will use whichever pip is in your path.
I would advise against ever calling any pip script directly (nor pip3, pip2.7.exe, anything like that).
Instead, a surefire way is to always prefer the explicit variant of calling pip's executable module for a specific Python interpreter:
path/to/pythonX.Y -m pip somecommand
path/to/venv/bin/python -m pip somecommand
C:\path\to\venv\Scripts\python.exe -m pip somecommand
There are many advantages to this, for example:
It is explicit for which Python interpreter the projects will be pip-installed (Python 2 or 3, inside the virtual environment or not, etc.)
For a virtual environment, one can pip-install (or do other things) without activating it: path/to/venv/bin/python -m pip install SomeProject
Under Windows this is the only way to safely upgrade pip itself path\to\venv\Scripts\python.exe -m pip install --upgrade pip
But yes, if all is perfectly setup, then python3 -m pip install SomeProject and pip3 install SomeProject should do the exact same thing, but there are way too many cases where there is an issue with the setup and things don't work as expected and users get confused (as shown by the many questions about this topic on this platform).
References
Brett Cannon's article "Why you should use python -m pip"
pip's documentation section on "Upgrading pip"
venv's documentation section on "Creating virtual environments": "You don’t specifically need to activate an environment [...]"
I ran across an issue with running pip with absolute path. This might be related to WinPython's installation routine and the order of installing Python 3.6 first, 2.7 second, or Python 3.6 being in the path.
No matter which pip was called, it was activating the 3.6 one:
λ C:\prog\WinPython-64bit-2.7.13.1Zero\python-2.7.13.amd64\Scripts\pip2.exe --version
pip 9.0.1 from C:\prog\WinPython-64bit-3.6.1.0Zero\python-3.6.1.amd64\lib\site-packages (python 3.6)
What finally did the trick was calling pip as a module of the respective python binary:
λ C:\prog\WinPython-64bit-2.7.13.1Zero\python-2.7.13.amd64\python.exe -m pip --version
pip 9.0.1 from C:\prog\WinPython-64bit-2.7.13.1Zero\python-2.7.13.amd64\lib\site-packages (python 2.7)
Hope that might help someone with similar issues.
I tried many things , then finally
pip3 install --upgrade pip worked for me as i was facing this issue since i had both python3 and python2.7 installed on my system.
mind the pip3 in the beginning and pip in the end.
And yes you do have to run in admin mode the command prompt and make sure if the path is set properly.
1-open command prompt and change direction using the command cd C:\Python35\Scripts
2- write the command pip3 install --upgrade pip
3- close the command prompt and reopen it again to return to the default direction and use the command pip3.exe install package_name to install any package you want
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.