I want to install mpi4py.
The installation fails with the error below.
Please share the solution to the same error.
note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for mpi4py
Failed to build mpi4py
ERROR: Could not build wheels for mpi4py, which is required to install pyproject.toml-based projects
[notice] A new release of pip available: 22.3 -> 22.3.1
[notice] To update, run: python -m pip install --upgrade pip
I installed pyproject-toml with "pip install pyproject-toml".
But mpi4py still won't install.
My python version is Python 3.8.0.
The following worked for me:
sudo apt update
sudo apt-get install libopenmpi-dev
It seems that related packages are twisted.
Installed by following the steps below.
apt --fix-broken install
apt install mpich
pip install mpi4py
For me it worked when I used sudo before:
sudo pip install mpi4py
I had the same error message. I used the Anaconda-Navigator interface and it worked fine.
Another option is to use brew. If OpenMPI isn't a dependency issue for you, the installation worked when I used it as well.
brew install mpi4py
I'm on Windows 10.
I was following the instructions on https://kivy.org/doc/stable/installation/installation-windows.html# and I reached the part where it says:
Install Kivy:
python -m pip install kivy==1.11.1
After I type it in cmd, it gives me an error. I'll put the error as a comment.
Try pip install pipwin and then pipwin install kivy==1.11.1
Credits to #KetZoomer
try to install thanks to pip, type in a terminal:
pip install kivy[base] kivy_examples --pre --extra-index-url https://kivy.org/downloads/simple/
I created a virtual environment for my project and I'm trying to install torch via pip.
pip install torch===1.5.1 torchvision===0.6.1 -f https://download.pytorch.org/whl/torch_stable.html
This gives me the error -
ERROR: Could not find a version that satisfies the requirement torch===1.5.1 (from versions: 0.1.2, 0.1.2.post1, 0.1.2.post2)
ERROR: No matching distribution found for torch===1.5.1
Some solutions recommend the use of conda, is it necessary? Can I not do it through just pip
You can try to install directly from the wheels files:
pip install https://download.pytorch.org/whl/cu102/torch-1.5.1-cp36-cp36m-win_amd64.whl
pip install https://download.pytorch.org/whl/cu102/torchvision-0.6.1-cp36-cp36m-win_amd64.whl
I have done, apt-get install fontforge on my ubuntu system. When i do import fontforge in my python code, it throws error as, No module named fontforge.
When i do, pip install fontforge, it throws error as,,
Could not find a version that satisfies the requirement fontforge (from versions: )
No matching distribution found for fontforge
How can i install fontforge's python libs?
You may want to install python3-fontforge.
sudo apt-get install python3-fontforge
After that you should be able to use fontforge in ubuntu's python version 3.
You can verify by doing /usr/bin/python3 -c "import fontforge;print(fontforge)". This should now print the path to the fontforge python module.
Try installing a specific version
pip install fontforge==1.0
For me , the above command completes without errors. If any errors, upgrade pip using
pip install --upgrade pip
And try again. You may try allow externally hosted files also.
pip install --allow-all-external fontforge
CentOS 7 EPEL now includes Python 3.4: yum install python34
However, when I try that, even though Python 3.4 installs successfully, it doesn't appear to install pip. Which is weird, because pip should be included by default with Python 3.4. which pip3 doesn't find anything, nor does which pip.
How do I access pip from the Python 3.4 package in CentOS 7 EPEL release?
The easiest way I've found to install pip3 (for python3.x packages) on CentOS 7 is:
$ sudo yum install python34-setuptools
$ sudo easy_install-3.4 pip
You'll need to have the EPEL repository enabled before hand, of course.
You should now be able to run commands like the following to install packages for python3.x:
$ pip3 install foo
curl https://bootstrap.pypa.io/get-pip.py | python3.4
Or if you don't have curl for some reason:
wget https://bootstrap.pypa.io/get-pip.py
python3.4 get-pip.py
After this you should be able to run
$ pip3
The CentOS 7 yum package for python34 does include the ensurepip module, but for some reason is missing the setuptools and pip files that should be a part of that module. To fix, download the latest wheels from PyPI into the module's _bundled directory (/lib64/python3.4/ensurepip/_bundled/):
setuptools-18.4-py2.py3-none-any.whl
pip-7.1.2-py2.py3-none-any.whl
then edit __init__.py to match the downloaded versions:
_SETUPTOOLS_VERSION = "18.4"
_PIP_VERSION = "7.1.2"
after which python3.4 -m ensurepip works as intended. Ensurepip is invoked automatically every time you create a virtual environment, for example:
pyvenv-3.4 py3
source py3/bin/activate
Hopefully RH will fix the broken Python3.4 yum package so that manual patching isn't needed.
Update: The python34 bug mentioned below has finally been fixed. It is a perfectly fine choice now.
Rather than using broken EPEL python34 packages, you can enable the IUS repo and have it work properly.
pip inside virtual environments
The main python34u and python35u IUS packages include the pyvenv tool (/usr/bin/pyvenv-3.4 or /usr/bin/pyvenv-3.5) that includes bundled wheels of pip and setuptools for bootstrapping virtual environments.
global pip
The python34u-pip and python35u-pip IUS packages include /usr/bin/pip3.4 and /usr/bin/pip3.5 respectively. These work just fine to install packages to the system site-packages directory.
yum install python34-pip
pip3.4 install foo
You will likely need the EPEL repositories installed:
yum install -y epel-release
Update 2019
I tried easy_install at first but it doesn't install packages in a clean and intuitive way. Also when it comes time to remove packages it left a lot of artifacts that needed to be cleaned up.
sudo yum install epel-release
sudo yum install python34-pip
pip install package
Was the solution that worked for me, it installs "pip3" as pip on the system. It also uses standard rpm structure so it clean in its removal. I am not sure what process you would need to take if you want both python2 and python3 package manager on your system.
Below are the steps I followed to install python34 and pip
yum update -y
yum -y install yum-utils
yum -y groupinstall development
yum -y install https://centos7.iuscommunity.org/ius-release.rpm
yum makecache
yum -y install python34u python34u-pip
python3.6 -v
echo "alias python=/usr/bin/python3.4" >> ~/.bash_profile
source ~/.bash_profile
pip3 install --upgrade pip
# if yum install python34u-pip doesnt work, try
curl https://bootstrap.pypa.io/get-pip.py | python
There is a easy way of doing this by just using easy_install (A Setuptools to package python librarie).
Assumption.
Before doing this check whether you have python installed into your Centos machine (at least 2.x).
Steps to install pip.
So lets do install easy_install,
sudo yum install python-setuptools python-setuptools-devel
Now lets do pip with easy_install,
sudo easy_install pip
That's Great. Now you have pip :)
Figure out what version of python3 you have installed:
yum search pip
and then install the best match. Use reqoquery to find name of resulting pip3.e.g
repoquery -l python36u-pip
tells me to use pip3.6 instead of pip3
On CentOS 7, the pip version is pip3.4 and is located here:
/usr/local/bin/pip3.4