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how i can i solve no module named can error?

hello i'm using python 3 and ros noetic, and i got this error
import can
ImportError: No module named can
I've got this error before, and I solved it through a very simple can-bus related installation command in google. But I can't find that command now
I've tried all the like $ sudo apt install python3-can.
but I can't fix it at all
thank you................

The problem is, that the module can't be found by your python.
first, try to remove the package with:
pip uninstall python-can
and re-install it with
pip install python-can
In case you have several versions of python installed (such as python2 and python3) make sure, you use
pip3
instead of pip.
Next you can try to manually search your package directories for the package, if it is even there.

Try cloning the library with git and running the setup.py installation, worked for me.

Pillow is installed, but still getting "ImportError: No module named PIL"

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

AttributeError: module 'cv2' has no attribute 'imread'

(i'm on mac os 10.8.5)
I'm using Python 3 (through jupyter notebook) and trying to import cv2
I did import cv2 succefully, but when I type im_g = cv2.imread("smallgray.png", 0) I get this error:
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-7-5eb2880672d2> in <module>()
----> 1 im_g = cv2.imread("smallgray.png", 0)
AttributeError: module 'cv2' has no attribute 'imread'
I also checked dir(cv2) and I get:
['__doc__', '__loader__', '__name__', '__package__', '__path__', '__spec__'
I guess a lot of functions are missing...
Is it due to a wrong opencv installation ?
Actually I struggled a lot to get opencv and I guess I installed it 'too many times' and different ways via Terminal. (brew, pip)
Should I uninstall opencv and start over ? How can I do this properly ?
Thx in advance

It might be the case that you installed it in the wrong way. In my case as well, I installed OpenCV wrongly so I uninstalled it completely then reinstalled it which caused it to work.
Please notice the sequence of uninstalling and installing:
Uninstall:
pip uninstall opencv-python
pip uninstall opencv-contrib-python
Install:
pip install opencv-contrib-python
pip install opencv-python

I was have this problem too, and i solved it, the problem was been in i named my script cv2.py, i'm just rename it to something else.

Reader's problem could be, that a wrong library (cv2 package) has been installed.
I installed opencv-python3 instead of opencv-python for example.
So in case you have PyCharm IDE, go to File->Settings->Project: *->Python Interpreter and see what you have listed there:
Make sure, you have installed opencv-python.
If you have also other similar names, it should be fine - in my case it works.

This might happen if you have named one of your files as 'cv2.py'. So when you 'import cv2', the system accesses your file instead of the actual library. So try renaming cv2.py' to any other name and your code should work fine.

I had the same issue, this turned out to solve the problem:
from cv2 import cv2
im_g=cv2.imread("smallgray.png", 0)
print(im_g)

Check:
brew list | grep opencv
If it doesn't installed then try:
brew install opencv

it works with me:
pip install opencv-python
pip install opencv-contrib-python
source : https://pypi.org/project/opencv-python/

Do cv2.cv2.imread()
This should work in most of the cases. Also, take a look here.

I faced Similar issue,On Ubuntu
I had installed open-cv using the comand:
sudo pip3 install opencv-python3
I Uninstalled opencv, By:
sudo pip3 uninstall opencv-python3
Then reinstalled it Using the following Code:
pip3 install opencv-python

I also faced this problem.
And get a solution by changing the current cv2.py to cv.py(You can name whatever you like except the name of packages in use).
Little Explanations
Saving the current working file as the name of cv2.py, when we try to run the file it imports the current file with import cv2 statement, not actual cv2 module. This whole thing is causing this whole Error.

The main problem is that you have your file or folder named "cv2", it is not permitted in Python. The way to solve is change the name and then your code will be run

The same issue has recently appeared within my code and had no idea of what's happening. Tried different methods such as uninstalling opencv-python.
Coming to the naming of the file that I am working with, I definitely had no problem that might cause a collapse with the name of the library.
I have deleted the opencv-python, cleaned all of the package-related caches, and then reinstalled the opencv-python and opencv-contrib-python. Now, it is working fine and I can say that no issues have appeared yet.
P.S I am using Arch Linux. If you wonder about how to clear caches, try looking at this source. I hope it helps. Keep learning and exploring, thanks!

I personally had to uninstall all previous installations dealing with opencv :
pip uninstall opencv-python
pip uninstall opencv-contrib-python
pip uninstall opencv-contrib-python-headless
Then I deleted all files that had to do with opencv too in site-package
after the uninstallation, files related to opencv like opencv_contrib_python-4.6.0.66.dist-info remained and caused errors.
Once all these files were deleted I reinstalled opencv:
pip install opencv-python
now it works for me

using cv2 on vscode
i was having this problem but nothing worked. Turns out that i named my file as "cv2.py" so it was importing itself
"Generally, the Python Circular Import problem occurs when you accidentally name your working file the same as the module name and those modules depend on each other. This way the python opens the same file which causes a circular loop and eventually throws an error."

Perhaps you have just installed opencv-contrib-python and not opencv-python.
Try this out, it worked for me-
First uninstall:
pip uninstall opencv-python
pip uninstall opencv-contrib-python
then install:
pip install opencv-contrib-python==3.4.2.16
pip install opencv-python==3.4.2.16
You can refer here.

ImportError: no module named win32api

I am using Python 2.7 and I want to use pywin32-214 on Windows 7. I installed pywin32-214 by using the MSI installer. But when I import win32api in my Python script, it throws the error:
no module named win32api
What should I do? How can I use win32api on Windows 7?

This is resolve my case as found on
Where to find the win32api module for Python?
pip install pypiwin32

According to pywin32 github you must run
pip install pywin32
and after that, you must run
python Scripts/pywin32_postinstall.py -install
I know I'm reviving an old thread, but I just had this problem and this was the only way to solve it.

I had an identical problem, which I solved by restarting my Python editor and shell. I had installed pywin32 but the new modules were not picked up until the restarts.
If you've already done that, do a search in your Python installation for win32api and you should find win32api.pyd under ${PYTHON_HOME}\Lib\site-packages\win32.

I didn't find the package of the most voted answer in my Python 3 dist.
I had the same problem and solved it installing the module pywin32:
In a normal python:
pip install pywin32
In anaconda:
conda install pywin32
My python installation (Intel® Distribution for Python) had some kind of dependency problem and was giving this error. After installing this module it stopped appearing.

I had both pywin32 and pipywin32 installed like suggested in previous answer, but I still did not have a folder ${PYTHON_HOME}\Lib\site-packages\win32.
This always lead to errors when trying import win32api.
The simple solution was to uninstall both packages and reinstall pywin32:
pip uninstall pipywin32
pip uninstall pywin32
pip install pywin32
Then restart Python (and Jupyter).
Now, the win32 folder is there and the import works fine. Problem solved.

After installing pywin32
Steps to correctly install your module (pywin32)
First search where is your python pip is present
1a. For Example in my case location of pip -
C:\Users\username\AppData\Local\Programs\Python\Python36-32\Scripts
Then open your command prompt and change directory to your pip folder location.
cd C:\Users\username\AppData\Local\Programs\Python\Python36-32\Scripts
C:\Users\username\AppData\Local\Programs\Python\Python36-32\Scripts>pip install
pypiwin32
Restart your IDE
All done now you can use the module .

The following should work:
pip install pywin32
But it didn't for me. I fixed this by downloading and installing the exe from here:
https://github.com/mhammond/pywin32/releases

This line:
import win32com
got me the error no module named win32api.
Using this command in elevated terminal:
pip install pywin32-ctypes and
pip install pywin32
and based on the error displayed, replacing:
import win32api → from win32ctypes.pywin32 import win32api
import pywintypes → from win32.lib import pywintypes
import _win32sysloader → from win32 import _win32sysloader
in your source file, or even the files of the packages that report the error (know what you are doing if you choose this approach) may solve this error. But better would be to just add the corresponding directories into the python path variable, for better integration with the python loading system, more info here: https://realpython.com/python-import/
So I put this content:
python38.zip
.
./lib
./lib/site-packages
./lib/site-packages/win32
./lib/site-packages/win32/lib
./lib/site-packages/win32ctypes/pywin32
./lib/site-packages/win32ctypes
# Uncomment to run site.main() automatically
#import site
(order DOES matter)
into this file: <python_root_installation_directory>/python38._pth
That way, correct libraries load when standard imports are used. If there is a cache import somewhere in the library, it will work, and the imports inside the libraries work as well.
This works for me and my installation, so your environment may be set up differently and this guide may not be fully compatible, but it is a good step in solving the issue, maybe modification or extension of my steps above may lead to the solution in another distribution.

Try this, it worked for me, it may help you!
pip install pywin32==225

I've tried all of your answers and finally got a solution. my issue was that I installed from both pip and python interpreter on my Pycharm IDE. I just removed win32compact from my interpreter and it works.

let me summarize, correct me if wrong, as below:
# update to newest pywin32
python -m pip install -U pywin32 pypiwin32
# run the post-install #ref https://stackoverflow.com/questions/21343774/importerror-no-module-named-win32api
python %CONDA_PREFIX%\Scripts\pywin32_postinstall.py -install
# double check
python -c "print( __import__('win32api') )"

In my case, the only thing that worked was to download the appropriate wheel from: https://pypi.org/project/pywin32/#files, and install with --force-reinstall.
pip install pywin32-300-cp37-cp37m-win_amd64.whl --force-reinstall

I found solution here:
https://www.ti-enxame.com/pt/python/pywin32-e-python-3.8.0/813327700/
I was able to run it on Spyder without error, but It wasn't working on cmd prompt
I just import the module pywintypes before win32api
import pywintypes
import win32api

I tried to reinstall pywin32, installed different versions, but nothing could make pywin work. The only thing that did finally help me was running
python pywin32_postinstall.py
which is located at Anaconda3\Scripts folder. Thanks for sameer_nubia for highlighting the location.

I solve this by
python -m pip install -U pywin32 pypiwin32

Import Error: No module named AppKit

I use Mac OS X Lion and Python 2.7. I am new to python. Can anyone tell me how to import AppKit and PyObjC to Python. But i get the errors when trying to import Import Error: No module named AppKit or 'Import Error: No module named PyObjC.
Trying easy_install does not help either.
What can i do to import these 2 modules?

If not already installed, install pip by running:
sudo easy_install pip
Then run:
## install for all users
sudo pip install pyobjc
or
## install for current user only
pip install pyobjc --user
NOTE: the general recommendation is to avoid using the system python, and use instead a user-maintained version, for example installed via brew install python3, macports, conda or whatever you already use for third party dependencies.

If you're on Mac it could be you're using the incorrect pip version, try sudo pip3 install -U pyobjc that solved it for me.

This a good guide on how to install PyObjc: http://ioanna.me/2009/09/installing-pyobjc-xcode-templates-in-snow-leopard/
When I was trying to install PyObjc I found it quite hard, but after a while, (and lots of google searches) I got it working.
Edit
I've found a more modern guide on how to do this. Download the templates and put them into your ~/Library/Developer/Xcode/Templates/ directory, and everything should work correctly.

If you are using PyCharm, you should install PyObjC package manually within it because of venv I guess. This was the only working solution for me.

In my case none of them worked. I was using Anaconda in my mac, later I discovered that the main issue with the Anaconda. Then I installed PyObjC with it's all supporting libraries inside Anaconda in a specific Environment.
I run the command line by clicking the Environment play icon and run my script.
It worked without any issues :)