I've looked around and people seem to have similar problems but none described my case exactly, and solutions that worked for them didn't seem to work for me (or there was no answer to the question at all).
Using pycharm, after having installed opencv-python and opencv-contrib-python I noticed that import cv2 works, but when I tried accessing cv2.imread() pycharm complained about not being able to find it.
So I went to the cv2 init file, which looks like this:
import importlib
from .cv2 import *
from .data import *
# wildcard import above does not import "private" variables like __version__
# this makes them available
globals().update(importlib.import_module('cv2.cv2').__dict__)
Pycharm detects an unresolved reference on the from .cv2 import * line and I imagine the same problem happens on the last line - I tried doing the following in a python console:
import cv2
print(__version__)
But I got a NameError, which seems to confirm my suspicion.
As I wrote, I have tried installing opencv-contrib-python but that didn't seem to do anything and frankly I'm already out of ideas.
Notes:
- I'm on Windows 10 x64.
- I'm using Python 3.6 x64.
- I have a virtual environment set up on my Pycharm project.
I'm no expert but the following line worked for me:
import cv2.cv2 as cv2
Everything seems to work afterwards. Autocompletion is also back
Have you installed opencv via terminal?
For example, like this.
$ pip install opencv-python
$ pip install opencv-contrib-python
I also experienced the same problem.
If you use pycharm, you should install opencv via pycharm.
File -> Settings... -> Project interpreter -> +
I got this same issue. You need to try a couple of things.
You need to simply import cv2 instead of cv2.cv2. Simply write "import cv2"
If you have installed any other library such as cv before, then uninstall it first.
The library that we need to install is opencv-python
You need to install it via IDE not with the terminal. Steps are as follows:
File -> Settings -> (Click on your project) -> Project Interpreter -> + -> (Type opencv-python) -> Download and install it -> It should work now.
From Python Interpreter download the version of opencv-python 4.5.4.60 and opencv-contrib-python 4.5.5.64.
Related
I am trying to use the pyserial module in my python project, so i installed it with pip install pyserial. After doing that, I did import pyserial in my python interpreter and it gave me this error:
Pyserial appears in my pip list list, and when i do pip show pyserial it gives this result:
I think you're using a wrong import statement, import pyserial will give you and should give you the above error .
The correct import statement is import serial, so try this instead.
Always it's a good thing to read the documentation, you can read more about pyserial on the docs here
Pycharm has a different way to install packages. You shouldn't install them via pip. I'm not sure why pip doesn't always install packages properly is though.
Instead, you can install it by opening the tool page in the main menu. This is available for PyCharm 2021.1 and later.
View -> Tool Windows -> Python Packages -> Search
You can also open the project interpreter to install packages.
Settings (CTRL+ALT+S) -> Project_Name -> Python Interpreter -> + (symbol at bottom) -> Search
See this article for a more complete tutorial.
I fixed this problem in PyCharm by typing import serial and it gave me an option to auto-install it. I took that option, and it worked.
So I am new in Python. I downloaded Anaconda (and Homebrew) and using Terminal on my Mac I confirmed that, say, Numpy is installed:
pip install numpy
to get as a result
Requirement already satisfied: numpy in ./anaconda/lib/python3.6/site-packages
Then opening Python within Terminal I can indeed import the package. The story is not the same once I open IDLE. So when I open it and try to import, say, Numpy I get the following message:
Traceback (most recent call last):
File "<pyshell#1>", line 1, in <module>
import numpy
ModuleNotFoundError: No module named 'numpy'
I guess there is something I do not know, I assume it is a common rookie problem. Can you help me with this?
Since your IDLE is using Python 3 you should use
pip3 install numpy
to get it installed for the correct Python. If you want to use your default installed Python (2.x) instead, IDLE is located at /usr/bin/. From your terminal you can open it with
/usr/bin/idle
this should have the numpy you installed with pip install numpy
See when you are working with Anaconda it creates its own virtual environment.
Now, If you are new in python on MAC then you might not familiar with Virtual Environment.
I suggest you to download python from the official website www.python.org
or Click here to directly download Python 3.6.2 on your MAC.
Then, Download Pycharm(The Best IDE for Python)
Download the community version for beginner and it is also free.
Pycharm Community Version -> Click Here
And do whatever you want and also must read about Virtualenv
According to me, Pycharm is better then Anaconda's Jupyter Notebook
Wish you good luck and show your creativity in python ! !
Erm... well it appears as though - since you have 2 versions on your computer - that it might be because it imported it into the other file path directory. Now, I've never worked with Mac, but I think if you just specify which pip you want to download from, it might work.
For example, on Windows:
C:\Python34\Scripts\pip.exe install numpy
or if you were doing it for 3.6, you would follow the path to the folder, find pip and install. So, I suggest to install the normal IDLE before any other platform built upon it just because it is easier to import modules and is not as bad to break like yours has.
There can be two issues -
You are using python 2 as a kernel for IDLE, since numpy is installed for python3.6. This will raise an error.
The issue is with anaconda's configuration with IDLE. Anaconda installs numpy in ./anaconda/lib/python3.6/site-packages. If IDLE uses systems default python instead of anaconda's. You will not be able to import numpy.
You can try running this snippet -
import sys
print('\n'.join(sys.path))
to track the location of python exactly.
One of the workaround that I can think of is -
create a virtual environment using anaconda. Something like
conda create -n py352 python=3.5.2 anaconda
and then fire IDLE from your terminal. Though I am not entirely sure, if this works for mac. If it doesn't, let me know the output of -
import sys
print('\n'.join(sys.path))
I'm just getting started with PyCharm, python, and OpenCV, and I'm trying to set up my environment. I've installed all the necessary packages and I import OpenCV like so:
import cv2
However, this does not autocomplete and shows warnings that the method may be missing when called, BUT if I import like so:
import cv2.cv2
autocomplete does work, but running produces the following error:
Traceback (most recent call last):
File "C:/Users/dunnj/PycharmProjects/TransformApps/transformapps/blackwhite.py", line 1, in <module>
import cv2.cv2 as cv2
AttributeError: 'module' object has no attribute 'cv2'
My Configuration:
PyCharm 2021.2.3 on macOS 11.6
Python 3.9.7 running in a Virtual Environment(VE)
opencv-python 4.5.4.58 installed into the VE via pip using the PyCharm Terminal window
Steps that worked for me to get autocompletion working:
tldr: Update python interpreter settings to point to <full path to venv>/lib/python3.9/site-packages/cv2
In preferences, Select Python Interpreter
Click the setting icon ( gear on right of box that display your Python Interpreter and select Show All
A list of all your configured Interpreters is show with your current interpreter already hi-lighted.
With your interpreter still highlighted, click the Icon that shows a folder and subfolder at the top. Tool tip should say "Show Paths for Selected Interpreter.
Click the + button and add the following path:
<full path to the venv>/lib/python3.9/site-packages/cv2
The .../python3.9... will be different if you are using a different Python Version.
Click Ok until you are back to the main IDE window.
This has worked in three different Virtual environments for me so far. For two of those, I had to restart the IDE for the completions to show up. The remaining one did not require a restart and worked immediately.
Credit to ingolemo from r/learnpython. I was stuck on this for ages and it drove me mad so I'm here sharing.
My OpenCV was installed by using the wrapper opencv-python package
The sys.modules hacking that that module is doing is the source of the
problem. Pycharm doesn't exactly import modules in order to know
what's inside of them, so messing with the imports dynamically like
that confuses pycharm greatly. It's not pycharm's fault, the
opencv-python maintainer should have used a star import rather than
that messy import hack. You should be able to work around the problem
using the technique you stumbled upon. All you have to do is catch and
ignore the error under normal operation:
import cv2
# this is just to unconfuse pycharm
try:
from cv2 import cv2
except ImportError:
pass
just execute the following commands in your project working environment.
pip uninstall opencv-python
pip install opencv-python==4.5.4.60
The proposed import solution did not work for me.
I had exactly this problem with OpenCV 4.2.0 compiled from sources, installed in my Conda environment and PyCharm 2020.1.
I solved this way:
Select project interpreter
Click on the settings button next to it and then clicking on the Show paths for selected interpreter
added the directory containing the cv2 library (in my case in the Conda Python library path - e.g. miniconda3/lib/python3.7/site-packages/cv2/python-3.7). In general check the site-packages/cv2/python-X.X directory)
Following Workaround 2 from the JetBrains issue tracker (https://youtrack.jetbrains.com/issue/PY-54649) helped me:
In PyCharm open from menue FILE - SETTINGS
Go to PROJECT:<your_project_name> and select PYTHON INTERPRETER
Click on the gear symbol next to the interpreter path and select SHOW ALL.
Make sure the correct interpreter is selected.
Click on that icon that looks like a folder tree (on the top)
Click on the "+" icon
Select the folder where the opencv package is located
normally (if you installed it via package manager) you will find it in:
<your_project_path>\venv\Lib\site-packages\cv2
Click OK (twice)
Wait for updating skeletons
Installing Jedi solved this problem for me.
You can use pip install jedi in terminal
You can find more info about jedi here: https://pypi.org/project/jedi/
i had the same problem.
i used
import cv2 as cv2
and after that both importing meth
try
try:
import cv2.__init__ as cv2
except ImportError:
pass
If you are using virtualenv, then mark the virtualenv directory as excluded in your project structure in Pycharm project settings.
Encountered this before.
find "cv2.cp38-win_amd64.pyd" in "Lib\site-packages\cv2" path.
Copy it to "DLLs" path.
Work for system python and anaconda environments(need to do this in conda envs path)
PS.
"site-packages" path can be found by "pip --version"
"DLLs" path is located at "Lib\site-packages....\DLLs"
I'm getting an error while using PyCharm which doesn't allow me to import the pillow module even though I have it installed as a package in the project interpreter. Any help is greatly appreciated!
http://imgur.com/a/DfjC3
While the name of the package is pillow, it is a replacement for PIL and uses the PIL for the name of the base module
the usual way to use pillow is
from PIL import Image
im = Image.open("filename")
See the tutorial, and the documentation
You try to run code with default Python interpreter (/Library/Frameworks/Python.framework/Versions/3.2/bin/python3). You need to configure PyCharm to run Your code with anaconda (~/anaconda/bin/python)
And now (Like #JamesK say) read Pillow tutorial and documentation:
import PIL not import Pillow
For anybody still having trouble with this, I did the following which solved my problem.
Open up your Project Interpreter (⌘ + , on Mac).
At the bottom of this page you'll see the + symbol to the left of the anaconda logo. This will create a pop-up that allows you to search for available packages.
In this new window, search for 'Pillow'.
Click and Install Package.
You should now be able to use "from PIL import Image" or "import Pillow as pil" etc.
After running this command on your terminal
pip install pillow
and you are sure it was installed, but still having same problem of PIL module not found.
Go to your IDE and make sure existing interpreter is set to python interpreter and not anaconda
I'm starting to learn about python development in a new project.
I got setup almost everything right, but only this import HTML that keeps given me some error that I don't know how to solve it.
import web
import json
from WebServer.forms import mainPageForm, addBugForm, addProblemForm, addProblemTypeForm, versionsDropdownForm,\
severitiesDropdownForm, problemTypesDropdownForm, problemsDropdownForm
import BugRecorderCore.controller as ctrl
import BugRecorderCore.validators as vdt
import datetime
import os
from BugRecorderCore.utils import concatenateString
import HTML
//...
I already tried to install HTML.py already, but still no success so far.
Any idea or advice about this issue ?
UPDATE
Following the suggestions from the answers below I got this message:
It looks like you are using anaconda, have you tried installing it the anaconda way?
conda install HTML
Also do you by any chance have 2 version of Python on your system?
If the package is unavailable you'll have to user pip. If you don't have pip, from your command line write:
python get-pip.py
pip install HTML
Looking the given screenshots and tags I suppose your are using Anaconda (which I have no experience but it is still Python, anyway) and the IDE is not resolving the import.
Make sure you have installed/updated HTML.py
conda install HTML
At your IDE go to Window > Preferences > Python Interpreter
At Libraries tab make sure you have the following folders added to your PYTHONPATH:
C:\Anaconda\Lib
C:\Anaconda\Lib\site-packages
C:\Anaconda\Scripts
That should do the trick.
Important: try to always install your libraries through conda (or pip when using Python directly). It will install things where it should be. ;)