Cannot Import CV2 on Spyder (Python 3.7) - python-3.x

I've tried downloading opencv through pip, conda and downloading whl file from https://www.lfd.uci.edu/~gohlke/pythonlibs/#pygame , no luck so far.
I tried
pip install opencv-contrib-python ,
pip3 install opencv-contrib-python ,
pip install opencv-python,
pip3 install opencv-python
All give same result, after successful installation, I get cv2 installed without an actual cv2.py file inside it, there is a folder CV2 inside site packages, which has looks like bellow:
and receive no module named cv2when asking to import cv2 on Spyder. When I use the ame command in the Python Shell, it imports with no issues and runs cv2.imread also with no issue, so am not quite sure if its a Python or a Spyder issue.
I also used anaconda 3 conda install, there exist issues between h5py package and opencv package, have not been able to download. I use windows 10. Ive tried the method outlined here:
Cannot find module cv2 when using OpenCV
Ive installed, uninstalled and reinstalled python 3.7, Can anyone direct me on any other paths to take?


So I did the following to be able to run import cv2 from Spyder 3 (built in with Anaconda): Uninstall and Reinstall Anaconda 3 and adding it to the PATH. I then copied everything inside the cv2 folder in the python folder (shown in screenshot in original question) and added it to the Scripts Folder in the Anaconda Directory (where it has been downloaded).
My understanding is the issue arised from Spyder not sourcing the Python directory although the interpreter is set as python and the wd set as a subfolder of the python directory (whithin which the cv2 folder exists). Downloading directly from Conda didnt work due to compatibility issues between h5py and opencv. Check if you can import cv2 from Python shell directly, if so its a IDE issue - took me two days to figure it out.

Related

My command line keeps saying that I don't have matplotlib installed. I've tried everything that I saw on Stack Overflow

Here is the code that I used:
import math
import matplotlib.pyplot as plt
The error message was:
no module named 'matplotlib'
I have tried:
pip install matplotlib
python3 install mat plotlib
Tried updating Anaconda Navigator to the latest version.
Tried uninstalling and reinstalling Python 3.10.5
Tried using Visual Studio Code and individual Python files (I'll try Jupyter too).
conda update --all
python - version says that I have Python version 3.6.13
After all of that, I still get the same error that there is no module named matplotlib

The answer was that I had never actually attempted to access matplotlib outside of Jupyter Notebooks. I was only meant to access it inside of Jupyter. I created a virtual environment and that didn't work. I also did conda install matplotlib and that destroyed my Python install and I had to reinstall everything.

Module not found when I tried to import pyPDF2

My python version is 3.6. I am able to install the pyPDF2.
Ran pip install pyPDF2 successfully.
Ran pip list, it shows up as 1.26.0
My environment is not base, but I set up an environment as pytorch. pyPDF2 is installed successfully in this environment.
It pops error when I tried to import it. (typo fixed from the original post)

Your import pyPDF is incorrect. Instead try import PyPDF2.
Is also possible your pip does not match your python (this can be the case when multiple python versions are installed at the same time). Try running python -m pip list to confirm what exactly is installed.

<Import statement issue>ImportError: Missing required dependencies ['numpy'] [duplicate]

Since yesterday I've had this error when I try to import packages on anaconda :
ImportError: Missing required dependencies ['numpy']
I have tried un-installing Anaconda and Python, switching to Python 2.7 but nothing works it's still the same error, here is the code I get :
Any help is really appreciated thanks !

I had this same issue immediately after upgrading pandas to 0.19.2. I fixed it with the following install/uninstall sequence from the windows cmd line:
pip uninstall pandas -y
pip uninstall numpy -y
pip install pandas
pip install numpy
This also broke my matplotlib install so I uninstalled/installed that as well.
Very odd behavior for a seemingly routine upgrade.

What happens if you try to import numpy?
Have you tried'
pip install --upgrade numpy
pip install --upgrade pandas

I had to install this other package:
sudo apt-get install libatlas-base-dev
Seems like it is a dependency for numpy but the pip or apt-get don't install it automatically for whatever reason.

I had this problem with last version of numpy 1.16.x
Problem resolved with
python3 -m pip uninstall numpy
python3 -m pip install numpy==1.14.0

Did you install miniconda and pandas without dependencies?
Try installing numpy first with conda install numpy or pip install numpy.
If you're on Windows you can get pre-compiled versions of most libraries that require compilation from here.

On Windows 10 Anaconda3-5.3.0-Windows-x86_64 I had the Missing required dependencies ['numpy'] error when running scripts as so, %HOMEPATH%\AppData\Local\Continuum\anaconda3\python.exe pandas_script_foo.py.
In my case the error was caused by missing Anaconda package PATH definitions when running Anaconda python.exe in a windows cmd.exe session. The numpy package is not missing. It just can't be found on the PATH.
The Anaconda installation includes windows shortcuts that give examples of configuring the PATH per script run. See the shortcuts in the %HOMEPATH%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Anaconda3 (64-bit) directory for examples.
See the %HOMEPATH%\AppData\Local\Continuum\anaconda3\cwp.py script to see how Anaconda configures PATH.
Below is an example windows BAT file that calls cwp.py to setup PATH, and then run a python script. Its a copy of the commands the Anaconda jupyter-lab shortcut executes.
%HOMEPATH%\AppData\Local\Continuum\anaconda3\python.exe ^
%HOMEPATH%\AppData\Local\Continuum\anaconda3\cwp.py ^
%HOMEPATH%\AppData\Local\Continuum\anaconda3 ^
%HOMEPATH%\AppData\Local\Continuum\anaconda3\python.exe ^
%HOMEPATH%\AppData\Local\Continuum\anaconda3\Scripts\jupyter-lab-script.py
If you need to execute python scripts on Anaconda with the conveniance of running a BAT file, the above BAT file example should do the trick.

The data manipulation capabilities of pandas are built on top of the numpy library. In a way, numpy is a dependency of the pandas library. If you want to use pandas, you have to make sure you also have numpy. When you install pandas using pip, it automatically installs numpy. If it doesn't, try the following
pip install -U numpy pandas
For conda
conda install numpy pandas

I also faced the same issue. It happened to me after I upgraded my numpy library.
It was resolved in my case by upgrading my pandas library as well after upgrading my numpy library using the below command:
pip install --upgrade pandas

Try:
sudo apt-get install libatlas-base-dev
It should work now.
Else, try uninstall and reinstall numpy and pandas.

I had the same issue. It was because I had multiple versions of numpy installed. Remove all versions by repeatedly using:
pip uninstall numpy
Then re-install it with the command:
pip install numpy

First, try to import numpy on it's own, like so:
import numpy as np
I got this message:
ImportError: Something is wrong with the numpy installation. While importing
we detected an older version of numpy in
['/home/michael/.local/lib/python3.6/site-packages/numpy']. One method of
fixing this is to repeatedly uninstall numpy until none is found, then
reinstall this version.
So do what it says, keep uninstalling numpy until there is none, and then reinstall.
This worked for me.

I had the same issue while using Microsoft Visual Code with Python 3.7.3 64-bit('base':conda)as my python interpreter. Before running any code type the following three commands:
C:/ProgramData/Anaconda3/Scripts/activate #activate conda Scripts directory
conda activate base #activate conda
& C:/ProgramData/Anaconda3/python.exe #to run python

I have same problem.
I have got two version of numpy 1.16.6 and 1.15.4, fresh installed pandas did not work correctly.
I fixed it by uninstalling all versions of numpy and pandas and install the last versions.
$ pip uninstall numpy pandas -y
Uninstalling numpy-1.16.6:
Successfully uninstalled numpy-1.16.6
Uninstalling pandas-0.24.2:
Successfully uninstalled pandas-0.24.2
$ pip uninstall numpy pandas -y
Uninstalling numpy-1.15.4:
Successfully uninstalled numpy-1.15.4
Cannot uninstall requirement pandas, not installed
$ pip uninstall numpy pandas -y
Cannot uninstall requirement numpy, not installed
$ pip install numpy pandas

I had the same issue with anaconda package, it got updated.
anaconda {4.3.1 -> custom} ## I am not sure if this was the issue
Hit below command to know
conda list --revisions
what i did is just uninstall pandas with conda and re-install it
conda install pandas
Some new libs may also get installed with it.
It worked for me hope will do the same for you.

Uninstall all pip packages that you're having problems with. Manually remove all site-packages files. If you're using MacPorts, sudo port clean .
Then try reinstalling. Sometimes, there are files that should have been removed, but weren't if the installation was abruptly interrupted or something.
There could be an issue with conflicting versions of the package(s), as well as potentially issues with Pathing. Are you sure you've set the correct Path for your binaries? (/opt/local/bin, /anaconda2/bin, etc.)
Another issue could be some PYTHONPATH that's explicitly looking in the wrong place for the file.

I had a same issue recently with Anaconda with Python 3.7.
I solved this problem by downgrading python version to 3.6:
conda install python=3.6
and then by updating all the packages:
conda update --all

pandas is built on top of numpy so you need to have numpy to use the data manipulation feature, so install numpy first.
pip install numpy

This worked in my anaconda environment, but I do not know why conda does not work. For some reason conda uninstall was not sufficient. This only worked with conda remove.
conda remove pandas
conda remove numpy
conda install pip
pip install pandas
*With help from this answer
This raises the following import warning in python 3.6 and 3.7:
ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
If you with to ignore this warning (and maybe other ImportWarnings), add the following to your script before importing pandas:
import warnings
warnings.filterwarnings('ignore', category=ImportWarning, module='_bootstrap.py')

In my case even though I was using the above options of uninstall and installing using pip the code was still giving me same errors.
Finally, I created a vritual environment and Installed numpy and pandas using pip in my virtual env. Now the code is running.
Steps: for Anaconda3 - Please change according to your installation type:
[if you dont have virtual env package installed]
$ pip install virtualenv
[from command prompt go to the directory by c:\anadonda3\scripts
[write the following command to use virtual env to create a virtual env for you in your desired location]
$virtualenv c:\anaconda3\envs\my_virtual_env
[once created you will have to activate your virtual env]
$c:\anaconda3\envs\my_virtual_env\scripts activate
[now pip install numpy and pandas and other required packages using pip]
[once installations are done exit from the virtual env]
$c:\anaconda3\envs\my_virtual_env\scripts deactivate
now use the python.exe inside your virtual env folder to run the script and it will run even with python 3.7.

I am using Win10 and Conda, and this issue just append to me when upgrading python 3.7.2-h8c8aaf0_0 --> 3.7.2-h8c8aaf0_2.
I solved it by return to the previous version with
conda install python=3.7.2=h8c8aaf0_0

If you're running your program on PyCharm on Windows, there is a known bug, because PyCharm simply doesn't add env-related paths to PATH.
The issue is fixed in the 2019.1 Early Access Preview (EAP) build.
For me installing the EAP fixed the issue.

nothing worked for me ... except when I found this
I suspect that you have a local file called unittest.py that is getting imported instead of the standard module.

I was trying to upgrade my anaconda 2 with anaconda 3. I tried installing Anaconda3-2018.12-Windows-x86 and Anaconda3-2019.03-Windows-x86_64 on my Windows 10 machine and failed with this error. For me, using Anaconda3-4.4.0-Windows-x86_64 for anaconda 3 worked the trick after trying everything listed in answers here.

I fixed this using Anaconda by going to Environments > base(root), searching for numpy in the installed modules and clicking the tickbox alongside it and choosing > Mark for specific version installation > 1.14.0 (as suggested by another user on this thread). Then clicking Apply. Once it downgraded numpy I stopped getting errors when running py files on the command line.
Throughout this saga, I was still able to use https://pypi.org/project/auto-py-to-exe/ even when I was getting the numpy errors on the command line, but it was a hassle to create an exe every time I wanted to test a change. It's all sorted now. I guess there was a problem with numpy 1.16.4.
Anyway, I hope this helps someone who's using Anaconda as well.

The following worked for me.
Deleted the folders for numpy and pandas together with their contents completely from the site-packages folder. Check depending on whether you are using python2 or python3. Check the exact path as per your machine.
N.B handle with care "rm -rf" command. If you are not sure of what you are doing, please do it manually using any file explorer of your choice!!
rm -rf ~/anaconda2/envs/myenv/lib/pythonX/site-packages/pandas*
rm -rf ~/anaconda2/envs/myenv/lib/pythonX/site-packages/numpy*
Then i installed clean packages for pandas and numpy as usual with
pip install numpy
pip install pandas

I've got the same error recently. Before applying uninstall or install tools, try to update your Jupyter.
How? Go to 'Environments' and type on the Search Packages box 'pandas'. Afterwards, check the version (if that column shows a blue number with a diagonal arrow, it means that your pandas is out of date). Click on 'pandas' and a option will pop up (choose 'Apply' and wait for a couple of minutes to update the package). And then, make a quick test on any notebook to make sure that your Jupyter is running smoothly.

For those who couldn't solve with the above answers:
Ensure that you are running python3 with
$ python version
If not, install python3.
Then change default python to python3 with
$ alias python=python3
Next, close your jupyter lab/notebook environment and re-launch it with default python being python3.

build_exe_options = {"packages": ["os",'pandas','numpy']}
It works.

you are running python 3.7
create environment for python 3.6
python3.6 filename.py

Anaconda Prompt finds libraries, cmd -> Python doesn't. Python was only installed with Anaconda package, nothing else

I'm not sure what's going on here. I installed Python with Anaconda, there are no previous versions of Python installed. Everything works fine with Spyder, Jupyter Notebooks, or within Anaconda prompt itself. When I try to run numpy or pandas in cmd, I get an error. When I run them in Anaconda prompt, no issue.
Looks like both prompts are pointing to the exact same installation of Python. I've even ran python.exe from the Anaconda install folder and get the same error.
My Environment Variable path points to C:\Anaconda , where the python.exe is found. Any ideas as to what's going on?
Edit: I noticed I import numpy on the conda screenshot and I'm trying to import numpy on the cmd screenshot. Importing either pandas or numpy on conda loads it successfully.
Edit 2: Opening python.exe within the Anaconda folder gives the same output. Can't import numpy/pandas. Opening Anaconda Navigator -> base (root) -> Open with Python successfully imports numpy/pandas. How can the python.exe within Anaconda not detect libraries installed by Anaconda... yet running Python within Anaconda Navigator works?
Edit 3: SOLVED Ended up uninstalling and reinstalling both Pandas and Numpy through Anaconda prompt. Really odd but now both packages work regardless if I use Conda prompt or cmd.

Try upgrading the pip first and then try to uninstall if they are already present in the below order.
pip uninstall pandas
pip uninstall numpy
pip install pandas
pip install numpy

ERROR in install opencv in my python 3.6.6

I HAVE PYTHON 3.6.6 INSTALLED IN MY WINDOWS 7 PLATFORM BUT WHEN I TRIED TO INSTALL OPENCV PACKAGE IT SAYS REQUIREMENT ALREADY SATISFIED AND IF I TRY TO IMPORT CV2 IT SAYS NO MODULE .I'VE TRIED ALL POSSIBLE METHODS ON INTERNET WHAT SHOULD I DO
i tried to download opencv exe from sourceforge and copying cv2.pyd file and then pasting it in site packages
i tried pip install opencv_python-4.0.1-cp37-cp37m-win_amd64.whl
but nothing works

The error message says that you are asking PIP install a version of cv2 for 64-bit Python 2.7, and that installation is failing. So the installation is not happening because it's the wrong version. That might be because you don't have Python 2.7, or because you have a 32-bit processor, or both. Navigate to Python36\Scripts and issue the command pip install opencv_python. Then pip will find the appropriate file to download, and install it.

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