I've been trying to use the ROS(Robot Operating System) using this page:
Tutorial page
In the link it makes you use turtle sim it seemed to work fine with me without any errors.
In the 4th step(install rqt),i get this error:
`INPUT: RQT
OUTPUT: ImportError for 'pyqt': No module named 'PyQt5'
ModuleNotFoundError: No module named 'PyQt5'
ModuleNotFoundError: No module named 'PySide2'`
There was more lines of error but it seemed irrelevant to me because it only says file names.
I'm using python version 3.8.3 and qt version 5.12.12.
I downloaded the qt manually in their website.Didn't use:
pip install PyQt5
And i don't exactly remember now but someone said something about local files of pyhton but i had none of them:
screenshot of C:\Users\Boran\AppData\Local\Programs
It supposed to be Pyhton files in here.
Also there is no problem about python it works fine and i used talker and listener(pyhton coded applications of ROS.) and they worked fine.
I solved the problem by installing graphviz.It appears that to run rqt i had to install graphviz.
i want to use cv2.ximgproc module.
this is add-on module at Opencv
but there is a problem to load module.
I tried pip install opencv-contrib-python but it doesn't work.
to be precise its already installed but can't not find cv2.ximgproc module.
import cv2
...
cv2.ximgproc.thinning( ... )
that's my import section.
So, I tried paste source file from OpenCV github
but there is only C++ source..
( sometimes .py file exist. but that is not file I need. )
It is just PyCharm Error.
PyCharm represents 'Can't find'.
but I Run my code, and its works well..
I made the following steps:
1- Installed Anaconda and added link to anaconda bin in the .bashrc
2- Made an new env called py27 and activated it
3- Installed numpy in this env
4- Now I am trying to build opencv but it does not generate the cv2.so file. In the cmake step, it does not show numpy version either. I installed the dev headers but still did not had any impact
I found the issue.
While trying to fix my issues, I used make clean instead of removing the folder build. Removing instead cleared the cache (the reason of my issue most probably) so the right commands provided the right outputs!
I have build OpenCV (using cmake) and I can see the libs, include and bin files copied to my conda desired env. However, using conda list doesn't list the OpenCV. Is there a way to overcome this?
conda list will only show pip install or conda install installed packages.
To verify if OpenCV works, type below to check the version.
import cv2
print cv2.__version__
Hope this answer your question.
I have downloaded the prepackaged Kivy zip file onto a Windows 8.1 machine and installed Kivy-Garden using pip (after running kivy.bat). However, I have been unable to successfully use Kivy-Garden. I have attempted the following commands:
garden install graph
garden list
However, neither of them work. They both result in the following error:
Traceback (most recent call last):
File "c:\kivy\Python27\Scripts\garden", line 5, in <module>
pkg_resources.run_script('Kivy-Garden==0.1.1', 'garden')
File "C:\Python27\lib\site-packages\pkg_resources.py", line 483, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "C:\Python27\lib\site-packages\pkg_resources.py", line 1335, in run_script
raise ResolutionError("No script named %r" % script_name)
pkg_resources.ResolutionError: No script named 'garden'
Does this indicate a bad installation? How might I fix it?
Kivy for windows comes in a bundle with all the prerequisites to run, since some are hard to install in windows, so it's not using you installed python.
You should go to your kivy installation folder, inside you'll find the python folder, inside is the python descriptor used for kivy, you can run that python exe, or use pip or easy install (i don't remember if both), like an extra advice i could saw to use PyCharm to program, it's easy to install the python modules and code, i have it myself with SqlAlchemy instaled from the PyCharm Gui (previous config here Configure PyCharm and Kivy).
In the other hand you can configure kivy to run with your installed python (instructions here Kivy with an installed Python in Windows) i haven't tried myself since i use the same python included in kivy with no problems
I never figured out why pip wouldn't work, but I found a workaround.
Just download the package from pypi and run setup.py:
https://pypi.python.org/pypi/kivy-garden/0.1.1
The only workaround I've found that works is to manually install flowers into the kivy garden folder. Ceremcem has a great explanation of it here: filebrowser error in windows for kivy
Also I found I had to explicitly use pip2 for pip to work.