I am trying to access my webcam with cv2(opencv-python) package.
When I try to import it I get this error:
Traceback (most recent call last):
File "server.py", line 6, in <module>
import cv2
File "/usr/local/lib/python3.8/dist-packages/cv2/__init__.py", line 5, in <module>
from .cv2 import *
ImportError: libGL.so.1: cannot open shared object file: No such file or directory
Note: I am trying to import this package on putty, on Linode server - that might be useful information.
If anyone can explain to me what is happening and maybe solve the problem I will highly appreciate it!
Install opencv-python-headless instead of opencv-python. Server (headless) environments do not have GUI packages installed which is why you are seeing the error. opencv-python depends on Qt which in turn depends on X11 related libraries.
Other alternative is to run sudo apt-get install -y libgl1-mesa-dev which will provide the missing libGL.so.1 if you want to use opencv-python. The libgl1-mesa-dev package might be named differently depending on your GNU/Linux distribution.
Full installation guide for opencv-python can be found from the package documentation: https://github.com/skvark/opencv-python#installation-and-usage
this worked for me:
conda install -c fastai opencv-python-headless
I would like to preface with the fact that I am a coding newbie and all this is very new to me. In fact, this is my first stack overflow question.
Anyways I am learning python and am trying to install my first third party module called “pyperclip” in Terminal, but I don't think it installed correctly. I am very new with Terminal as well.
For reference, I am following the youtube guide "Automate the Boring Stuff with Python"
https://www.youtube.com/watch?v=xJLj6fWfw6k
I am on Lesson 8 and I am at minute 3:43 in the video if you want to follow along.
Here are some of my system details:
Mac OS X
Python version 3.8.3
I ran the following into Terminal:
sudo pip3 install pyperclip
Then I received the following message in Terminal after installing pyperclip
The directory or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo’s -H flag.
I then tried to install again using the following:
sudo -H pip3 install pyperclip
Then I got this message:
Requirement already satisfied: pyperclip in /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages (1.8.0)
I tried installing one last time using:
pip3 install pyperclip
I got the same message again:
Requirement already satisfied: pyperclip in /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages (1.8.0)
This is also the error I get when I try importing pyperclip in my interactive shell:
>>> import pyperclip
Traceback (most recent call last):
File “<stdin>”, line 1, in <module>
ModuleNotFoundError: No module named ‘pyperclip’
>>>
Can anyone help me please? I feel like a fish out of the water with all this stuff. Especially when it comes to Terminal. Any help would be greatly appreciated.
I wanted to discuss a few things that might help you on your way.
We typically do not use sudo in conjunction with pip to install Python packages. This installs the package at a system level and could conflict with packages that your system currently has installed or may install packages to a Python installation which is different than the one you are using from the terminal. Instead, we typically use pip install --user rather than sudo pip install.
See this question and answer for more: sudo pip install VS pip install --user.
If you are ever unsure whether a package has been installed properly, check using
pip3 list
We also need to make sure that the Python interpreter you are using is the same as where pip is installing. Since you are using pip3 to install, you should be using python3 at the terminal to enter the interactive shell. You can also verify that you are using the right Python interpreter by typing in the following command into the terminal:
which python3
Then, make sure that the output matches with the /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/ path that was reported by pip3.
If you are using a different interactive shell such as ipython, you need to make sure that you install ipython in the same manner using
pip3 install --user ipython
and executing it using
ipython3
Try repeating your steps using this new information to see if it helps. Let me know if you have any more questions or need some more help.
I need to use from kneed import KneeLocator for Knee-point detection in Python, but everytime I try to import the module after closing the Jupyter notebook I always get ModuleNotFoundError: No module named 'kneed' error and I am forced to install it again. I am using Jupyter Notebook with Anaconda on a remote server that I do not have the access to. I am using its web client.
The module I am trying to install and use is from https://github.com/arvkevi/kneed
I have not faced this issue with any other libraries. All other libraries I just need to install just once.
What could be the reason behind that?
Could anybody help me understand why is it happening and how to solve this issue?
You might need to run this line of code first. That worked for me
!pip install --upgrade kneed
According the information you provide, you are using python3.X . try "python3 setup.py install" instead of "python setup.py install".
After you install the module, run python3 -c "help('help;)" to confirm you install the module successfully.
Trying to import 'requests'.
Has it installed via pip3 install requests? But still, have this error.
C:\Users\Vikentiy>pip3 list
Package Version
---------- ----------
certifi 2018.11.29
chardet 3.0.4
Django 2.1.7
idna 2.8
pip 19.0.2
pytz 2018.9
requests 2.21.0
setuptools 40.6.2
simplejson 3.16.0
urllib3 1.24.1
virtualenv 16.4.0
C:\Users\Vikentiy>python --version
Python 3.7.2
Error Traceback:
C:\Users\Vikentiy\untitled2\venv\Scripts\python.exe C:/Users/Vikentiy/untitled2/requeststests.py
Traceback (most recent call last):
File "C:/Users/Vikentiy/untitled2/requeststests.py", line 1, in <module> import requests`
Try to uninstall requests and then again install it using pip
pip uninstall requests
and again install it
pip install requests
or if you didn't get what I am saying so please visit
https://scmquest.com/resolved-importerror-no-module-named-requests-usr-bin-python-no-module-named-pip-on-macos/
Another cause of this might be multiple Python versions installations. So if you type in your terminal:
pip3 install requests
The requests library will be automatically installed to your default python3, for example, Python3.6. However, let's say you have another Python version, for example, Python3.7, what you should do is:
pip3.7 install requests
This should solve this problem.
If you are running your code in the terminal, you should try:
python3.7 file_to_run.py
If you're using PyCharm as IDE, try closing and restarting PyCharm. Move the mouse cursor over the "requests" (with red curly line beneath it), until the red light bulb next to it show up. Select the first option in it, "Install package requests". PyCharm will take care of the installation from there.
I ran into the same issue and have tried all the solutions here on Stack Overflow.
If it is installed this will WORK:
c:\>python (or on Mac/Linux "$ python")
>>> import requests
>>> requests.get("http://127.0.0.1")
<Response [200]>
If you see this error when running your script/IDE:
Traceback (most recent call last): File "E:\test.py", line 1, in <module>
import requests
ImportError: No module named requests
Try:
python script.py
Answer is based on https://www.edureka.co/community/84584/python-requests-module-import-error-module-named-requests
Then the trick for me was not to start up a VirtualEnv, I actually found I was running the x64 version of python when I'd installed the requests package into the python 32 bit folder c:\program files (x86)\python37-32\lib\site-packages. This is a screenshot from the internet but it shows you how to change the interpreter you're using - in my case - I need to set it to Python 3.7.4(x86) 32 bit:
Run in command prompt
and write command pip install requests in scripts directory
cd \Python27\scripts
pip install requests
That's the exact solution which works for me, please follow this:
As like, first try to get the version of the requests module installed previously, this can be find by
pip install requests
Now, you will get the message:
Requirement already satisfied: requests in /opt/anaconda3/lib/python3.8/site-packages (2.24.0)
See, here the version of the requests module i.e., (2.24.0)
Now, the simple basic logic is this like you should install just the previous version of the requests (2.24.0). So, you should now install requests (2.20.0)
For this use command:
pip install requests==2.20.0
Now, I think you can test import requests and this will work fine.
Further, if any error occurs then please let me know in the comments.
Thanks,
HaPpY Coding 🤗
This issue is due to missing request module in python package .So you can use below command to install and recheck by restarting your IDE
pip install requests
If already installed better to upgrade
pip install --upgrade pip
If you are using venv (virtual environment), you may need to consider where it's path. for my case it was outside my project folder. So I had to first install request inside the main python's path then I recreate venv inside my project.
inside_your_project#python -m venv ./venv
I am running python3. I've installed OpenGL (pip install OpenGL PyOpenGL_accelerate). When I run my program (python3 opengltest1.py) I get this error:
Traceback (most recent call last):
File "opengltest1.py", line 4, in <module>
from OpenGL.GL import *
The solution was to install OpenGL with pip3 instead of pip, i.e.
pip3 install pyopengl
#eyllanesc Thanks for the help. In following up on your suggestion, I found the solution.
This worked for me! You must download every package with pip3. All things are separated because the syntax is different from Python 2 to Python 3.