I am trying to install opencv in python on my windows machine but I am unable to do so. I have python 2.7.11::Anaconda 2.4.1 <32-bit>
Here is what I have tried till now -
pip install cv2 on command line gives the error :
could not find a
version that satisfies the requirement cv2
I downloaded the package from sourceforge site, followed the steps
and pasted cv2.pyd in C:\Python27\Lib\site-packages but still it is
not working. I get the following error message
ImportError: No
module named cv2
(I already have numpy installed and it works just fine).
pip install opencv-python
you can type this instead of
pip install cv2
it also works with anaconda pro
I was able to solve the error.
If you are using python version 3 , sometimes you have to use pip3.
pip3 install opencv-python
Make sure you are using python 3 , it won't work for python 2.
Try
pip install opencv-python==4.3.0.36
So I was using PyCharm, and what worked for me was to install it directly from file->settings, Project:your-project-name->Python Interpreter list
Related
I am currently on Linux x86-64 machine. I am trying to install opencv in my virtual environment using pip however the error I keep receiving is
ERROR: Could not find a version that satisfies the requirement numpy==1.19.3 (from versions: 1.19.2+computecanada, 1.21.0+computecanada, 1.21.2+computecanada)
ERROR: No matching distribution found for numpy==1.19.3
I am running python 3.9.6 (64bit) and my current numpy version is 1.21.3. the command I've been using is pip install opencv-python. i've also tried uninstalling other instances of openCV and have tried the other options all with the same error. Does openCV not support numpy 1.21.3? Would anyone be able to point me in the right direction?
On computecanada you don't need to install OpenCV.
You can use it by following these commands:
module spider opencv
module load opencv/version
Actually, this error happens if numpy version does not match OpenCV required version.
for my case:
I used python 3.6. so I solved this error by following:
pip install numpy==1.19.0
pip install opencv-python==3.4.11.45
after installing numpy I search which OpenCV version support this numpy version, I found 3.4.11.45 so I install it by 2 number command and it is working.
I encountered a problem where I have installed opencv in my anaconda environment using this command:
pip install opencv-contrib-python
But for some reason when I enter into my environment using python and error occurs stating: 'No module named cv2', has someone encountered a similar problem, thanks.
To use cv2, you need to install opencv-python, not the contrib. You can do it by pip install opencv-python.
I really don't get why Python is so difficult to get up and running properly.
Anyway, I've just fresh installed Python 3.7 and PyCharm. I want to get the Python Imaging Library working within my project, but when I try to install it using PyCharm I get the following error:
pip install PIL
Non-zero exit code (1)
Try to run this command from the system terminal. Make sure that you use the correct version of 'pip' installed for your Python interpreter located at 'C:\Users\Jake\AppData\Local\Programs\Python\Python37-32\python.exe'.
Command output:
Collecting PIL
Could not find a version that satisfies the requirement PIL (from versions: )
No matching distribution found for PIL
You are using pip version 10.0.1, however version 18.0 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.
I've attempted to run python -m pip install --upgrade pip from a CMD prompt, but I then get this error:
Fatal Python error: Py_Initialize: unable to load the file system codec
ModuleNotFoundError: No module named 'encodings'
I just tried to install NumPy using the exact same method for PIL and Numpy installed without any issues whatsoever. This leads me to think that maybe PIL isn't supported for Python 3.7?
Can someone explain to me what the issue is here and help me with importing modules into my PyCharm project?
PIL is not maintained anymore. You can use Pillow instead, a more active fork of PIL.
pip install Pillow
I had installed opencv in python 3.6 32 bit version using the command 'pip install opencv-python', which I successfully used. Later when I upgraded my version to 64 bit as to use tensorflow as well, and ran the same command 'pip install opencv-python', opencv was already present, yet when I tried to import cv2 module, it showed the error that any module named cv2 is not found.
Now I don't understand what to do next. Hope someone can help.
You may uninstall previous opencv installation via pip uninstall opencv-python then do the pip install opencv-python.
I did find this question asked by few more people, but none of those exactly met my situation, so asking here myself.
I've (rather had) two versions of Python (2.7 and 3.4.3) on my Mac running the latest MacOS High Sierra. As I understand, the v2.7 comes as default installation with the MacOS. And I installed the 3.4.3 (from .dmg file downloaded from the python site). Thus now, the python command defaults to the 2.7, while python3 points to the 3.4.3 in the terminal.
While trying to learn, I tried a python script that uses
import PIL and from PIL import Image
But when running, this gave the error ImportError: No module named PIL.
Upon research on google, I figured out to install PIL and Pillow using
sudo pip install Pillow
It installed correctly, but I'm still getting the same error.
To remove the confusion, I decided to remove the python 3.4.3 from the system. But even after it's removed, I still get the same error.
Even pip list displays Pillow 5.1.0 alright.
So right now, I've only Python 2.7, and the error persists, while Pillow is also in there.
which python gives /opt/local/bin/python as the path.
Does any of the above ring a bell? Any ideas, what else could be missing here?
Phew, finally found the issue. Thanks #Yash for the pointers.
Incidentally I did a which -a python and surprisingly got this output:
/opt/local/bin/python
/usr/bin/python
Damn, I don't remember when I installed a second 2.7 version on the /opt/local/bin folder (probably via macports). Alright, removed the confusion, deleted this python, so now I'm left only with the system installed python at /usr/bin.
And now the imports all run perfectly fine as expected. :-)
Try this,
sudo pip install image
I hope it works! One more thing, do check if you're running python3 filename.py instead of python filename.py, if you want to install it for Python 3, run the command,
sudo pip3 install Pillow
Basic Installation:
pip install Pillow
Windows Installation:
pip install Pillow
Reference: https://pillow.readthedocs.io/en/stable/installation.html
Try this. It worked for me
pip install --upgrade --force-reinstall pillow
If you get something like access denied error run the below command
pip install --upgrade --force-reinstall pillow --user