I have a virtualenv created with virtualenvwrapper.
However, I'm on python 2.7
Whenever I try to install the opencv-python by pip, as sudo or not, I receive this message:
pip install opencv-python
Downloading/unpacking opencv-python
Could not find any downloads that satisfy the requirement opencv-python
Cleaning up...
No distributions at all found for opencv-python
Storing debug log for failure in /home/kristian/.pip/pip.log
Any ideas on why this us happening?
Your pip is most likely too old since opencv-python packages are distributed as manylinux1 wheels (https://github.com/pypa/manylinux). You need pip version 8.1 or later to install manylinux1 binary packages.
To upgrade your pip globally:
sudo -H pip install --upgrade pip
Inside virtualenv this should be enough:
pip install --upgrade pip
I recommend you to use anaconda, which is very convenient and saves a lot of trouble. With anaconda, you don't need to care about your local environment.
Related
I've been trying to install the gym library via pip install gym
I get the following error
WARNING: Discarding https://files.pythonhosted.org/packages/87/86/3f5467531428b6ce6f3c12d3121b4304d2ea1536a50775a4df036add37b8/gym-0.23.1.tar.gz#sha256=d0f9b9da34edbdace421c9442fc9205d03b8d15d0fb451053c766cde706d40e0 (from https://pypi.org/simple/gym/) (requires-python:>=3.7). Requested gym==0.23.1 from https://files.pythonhosted.org/packages/87/86/3f5467531428b6ce6f3c12d3121b4304d2ea1536a50775a4df036add37b8/gym-0.23.1.tar.gz#sha256=d0f9b9da34edbdace421c9442fc9205d03b8d15d0fb451053c766cde706d40e0 has inconsistent version: filename has '0.23.1', but metadata has '0.23.1'
ERROR: Could not find a version that satisfies the requirement gym==0.23.1
ERROR: No matching distribution found for gym==0.23.1
pip then defaults to trying to install previous versions 0.23.0, 0.22.0 and so on.
I get the following warning for all versions and none installs.
request gym from <link> has inconsistent version: filename has '0.9.0', but metadata has '0.9.0'
After some Googling for similar errors, I tried updating pip python3 -m pip install --upgrade pip setuptools wheel
but I get the same problem with version mismatch, and it tries to install old versions of pip and fails.
I'm on Python 3.10.4 and pip 21.0 under Arch Linux.
edit: The same problem happens to any package I try to install with pip.
I found a solution here.
The problem seems to be caused by the python-pip package under Arch Linux.
One possible way to fix it:
sudo pacman -Rncs python-pip
python -m ensurepip
If you cannot figure out pip use git
git clone https://github.com/openai/gym
cd gym
pip install -e .
Try to install with an upgrade option to install the latest without cache since looks that the latest version is stable:
pip install gym -U --no-cache-dir
-U, --upgrade Upgrade all packages to the newest available version
--no-cache-dir Disable the cache
If this won't help you can try to install using legacy version resolver (as per https://github.com/pypa/pip/issues/9203):
pip install gym -U --no-cache-dir --use-deprecated=legacy-resolver
"Could not find the version that satisfies the requirement virtualenv ( from versions: )
No matching distribution found for virtualenv" is the error message when I try to install virtualenv on my windows 10.
I have Googled it and followed several guide but no good result.
I have uninstalled and installed several lower versions of python, yet the same story.
I have been stocked for 6 days now trying to install django via pip.
I don't know what to do again.
Any true solution to my problem will be appreciated.
pip install --upgrade virtualenv
Try this command before the virtualenvwrapper... command
pip install virtualenvwrapper-win
this works fine for me
I have encountered a similar issue when working with virtual environments. I fixed the issue after upgrading the pip and then installing virtual env.
pip: upgrade pip using below command:
pip install --upgrade pip
or
pip3 install --upgrade pip
virtual env: install virtual env using the below command
pip install virtualenvwrapper-win
Please correct your spelling of pip install virtualenvwrapper-win.
I have also this problem with miss-spelling.
Im trying to install google assistant on my Raspberry Pi, but when I keep getting an error: pip is a package and cannot be directly executed
Instead of
pip [...]
Try doing
python -m pip [...]
Can't really help more without more info.
I think your version of pip is old. You need to upgrade it first, like this:
pip install -U pip
You may need to upgrade setuptools too:
pip install -U setuptools
Since google-assistant-library is available as a wheel, you need to install wheel too:
pip install wheel
I don't know if you can do that with Raspberry Pi, but I recommend you to used a virtualenv. That way, you have a fresh and isolated Python executable and a recent version of pip.
virtualenv your_proj
source your_proj/bin/activate
pip install wheel
pip install google-assistant-library
For newer version ie. using pip3:
pip3 install -U <<package name>>
I had the same problem.
I think it was an outcome of a failed
> .\python.exe -m pip install --upgrade pip
do to some environment misconfiguration.
So it first removed the existing version 10.0.1, and then the installation of the new version 22.3.1 failed, leaving me with no pip.
From official documentation, I ran
> .\python.exe -m ensurepip --upgrade
which restored the original pip 10.0.1.
Then I fixed the environment problem, and then again
> .\python.exe -m pip install --upgrade pip
I now have pip 22.3.1.
$ pip install -U pip
Collecting pip
Using cached pip-9.0.1-py2.py3-none-any.whl
Installing collected packages: pip
Successfully installed pip-8.1.1
You are using pip version 8.1.1, however version 9.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
The problem is pretty self-explanatory.
I tell pip to update itself, it gets the 9.0.1 package, installs 8.1.1 somehow then tells me to run the command i just ran to update it.
I managed to fix it by installing pip trough the script given at the website(apt-get installs version 8.1.1):
https://bootstrap.pypa.io/get-pip.py
It automatically uninstalled the old version so everything is in order now.
On a windows 7 machine I have pip version 1.5.6 installed:
pip 1.5.6 from C:\Users\dietz\PNC\tas\ENV\lib\site-packages (python 2.7)
In order to find the reason for an error I want to install a different version of pip, which worked fine for me. So how can I uninstall pip and install version 1.2.1 instead?
pip itself is just a normal python package. Thus you can install pip with pip.
Of cource, you don't want to affect the system's pip, install it inside a virtualenv.
pip install pip==1.2.1
If downgrading from pip version 10 because of PyCharm manage.py or other python errors:
python -m pip install pip==9.0.1
If you want to upgrade or downgrade to different version of pip, better use --upgrade option at one go instead doing it in two steps. i.e. first uninstalling the existing and then re-installing to new version, below does both in one go as shown below.
USE: Executed on WIN10 with Bash
python -m pip install --upgrade pip==19.2.3
$ python -m pip install --upgrade pip==19.2.3
Collecting pip==19.2.3
Using cached pip-19.2.3-py2.py3-none-any.whl (1.4 MB)
Installing collected packages: pip
Attempting uninstall: pip
Found existing installation: pip 21.3.1
Uninstalling pip-21.3.1:
Successfully uninstalled pip-21.3.1
Successfully installed pip-19.2.3
well the only thing that will work is
python -m pip install pip==
you can and should run it under IDE terminal (mine was pycharm)
If you have to downgrade pip version do following steps:
step1. pip uninstall pip
step2. pip install pip==version number you want to install or downgrade
step3. check version of pip using pip --version
This process also works when any other package giving error exit code(2) you can follow these steps and install your package.