I try to install opencv for python. I use windows x64. I install numpy1.6 and python2.7. I have installed opencv2.4.9. I install them succesfully. I guide from this page. It says that
Now open your "Python IDLE" ( from Start > All Programs > Python 2.7 > Python IDLE ) and just type following :
import cv2
When I run import cv2, I get below error :
module compiled against API version 9 but this version of numpy is 6.
How can I know compatible version?
I know this question enter link description here. But I installed latest numpy version, it didn't solve my problem.
Use https://www.scivision.co/install-opencv-3-0-x-for-python-on-windows/
It's going to lead you to http://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv where you can download a .whl installer. After you download it, you can run it using
pip install some-file.whl
assuming you have pip installed. After that you should be able to import cv2.
I had the same problem and I did a ton of research but this is the only one that worked.
Related
I'm having a problem with PIL where vs code says there is no module named PIL when there is. If I run the file without vs code the module imports fine. In the vs code problem tab it says this:
import PIL could not be resolved from source. Pylance(reportmissingmodulesource)
I know the library is installed because if I do pip install pillow, it says requirement already satisfied.
Things I've tried to fix it: reinstalling python, uninstalling and reinstalling pillow, upgrading pip, installing the PIL library(pip install Pillow-PIL).
None of these things worked so I am out of ideas for things to try. Could someone help me with this?
This part is important:
If I run the file without vs code the module imports fine
If something like this happens, then you are not running the same python interpreter, because modules are always installed to specific installations of python that you have.
Do the following:
Add to your script the first two lines
import sys
print(sys.executable)
This will print the path to the python executable that is interpreting that script. If you now run this script with and without vs code, it should print two different python paths. Now you can install to the python interpreter that is being used by vs code specifically by typing
/path/to/python/used/by/vs/code/python -m pip install pillow
in case someone stil has this problem on Mac or it didn't work, I used the code "python3 -m pip install pillow" in my vs code in terminal below but I had different code "from PIL import ImageTk,Image"
If anyone stumbles upon this problem and can't figure out what's wrong:
the first thing to do is simply restarting the Visual Studio Code instance.
That worked for me after running pip3 install Pillow from the VSCode terminal.
How about this?
pip install Pillow
For reference: https://pypi.org/project/Pillow/
Probably stupidly I tried to install the latest version of Python, in this case using the download from python site, but after doing that I was then getting python still running on the previous version python-3.6. I'm on OSX and was using sublime.
So I have been trying to work out how to update it to use the newest version. I've followed; https://opensource.com/article/19/5/python-3-default-mac.
All of the responses to queries now point to the python-3.9.5 version. So that's great and my runtime is using that. However after installing the requests using pip install I get the following error when running.
import requests
ModuleNotFoundError: No module named 'requests'''
[path: /Library/Frameworks/Python.framework/Versions/3.9/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin]
I stumbled upon Modules are installed using pip on OSX but not found when importing which I have been trying to work through.
I have been able to run the import command successfully in terminal, however it's intermittent as I've tried again and it's broken, so I'm lost. I'm running it something trying to run the python3.6 version, which after updating I followed these instructions to remove when I have uninstalled that from my mac https://www.macupdate.com/app/mac/5880/python/uninstall.
If there is any ideas, would love some help, mainly to try and tell me what that error message is telling me.
In particular, what does this mean?
[path: /Library/Frameworks/Python.framework/Versions/3.9/bin:/Library/Frameworks/Python.framework/Versions/3.6/
I should clarify too; when I run 'pip list'
I see
requests 2.25.1
Assuming that you are not installing requests package properly, and assuming your python executable is named python:
python -m pip install requests
If however, your python executable is named something else instead, e.g. python3, replace python with that name:
python3 -m pip install requests
I currently am running Python 3.5 and using Spyder from Anaconda as my IDE. I am running this on a Windows machine.
When I write import cv3 at the top of my code, it returns the error ImportError: No module named 'cv3'
I attempted to install opencv3 again with the command conda install -c https://conda.binstar.org/menpo opencv3 in the Command Prompt. It is apparently already installed because it returned
Fetching package metabase...............
Solving package specifications: .
# All requested packages already installed.
# packages in environment at C:\Users\Joey\Anaconda3:
# opencv3 3.1.0 py35_0 https://conda.binstar.org/menpo
Am I importing cv3 wrong? How do I fix this error?
Update: Tried import cv3 instead of import cv2 but got the following error: ImportError: cannot import name 'cv2'. The wording on the two errors is different, so python must acknowledge there is opencv installed but it does not work for some reason. Any ideas?
Ironically enough, the module is still called cv2 because it doesn't represent the version of opencv but the actual C++ API underneath which is, to be contrasted from the C API, named - cv2... So try with: import cv2
Problem solved by using command pip uninstall opencv-python in the Command Prompt.
I have attempted several installations of opencv and I suppose one may have downloaded badly and Anaconda was attempting to read that one. I looked into the build of some of the other installations I attempted and some were for Python 2.7. Maybe that contributed to the error.
Thankfully, this worked. Now import cv2 works perfectly. No errors.
I used the same approach to install the package. However, I could not import the library using the name opencv3. I had to use cv2 which worked for me.
Elaborating on #zwer's answer, check the version of OpenCV after import cv2.
>>> cv2.__version__
'3.1.0'
So basically it's calling the OpenCV3 library.
I installed tensorflow CPU version in windows as mentined on their official page.
It got installed successfully but giving error while I import the library.
Output for pip freeze also shows it's present:
spyder==3.1.2
SQLAlchemy==1.1.5
statsmodels==0.6.1
sympy==1.0
tables==3.2.2
tensorflow==1.0.1
toolz==0.8.2
tornado==4.4.2
traitlets==4.3.1
Using anaconda.
If you have python 2.X installed along with a Python 3.X do pip(version) example; pip3 instead of pip. I had a similar problem so i had a look around and someone said do pip3.6.1 but it spewed out an error so a few trys later pip3 worked. If not idk whats happening
I am running Python 2.7.9 on a Windows 8 machine. I've programmed for a long time (since the 60s), but I'm having trouble figuring out how to install the Six Module. I need a step-by-step set of instructions. Either help here or a suggested website would be helpful to this old man. Thanks!
On some computers where I don't have pip installed I usually do:
Extract the downloaded file
In the command line, where you extracted do python setup.py install
Module should now be installed
You can run python now
In the interactive interpreter do import module_name
If you get no errors, installation was a success