PyQt5 Modules not Found? - pyqt5

Question

This is a complete fresh install of MacOS!
Platform:
Apple MacBook Air - M1
MacOS Monterey
Package Info:
Homebrew: 3.3.14
pip: 22.0.3
Python: 3.9.10 (installed via 'brew install python')
Latest-Xcode
My $PATH environment:
/opt/homebrew/bin
/opt/homebrew/sbin
/usr/local/bin
/usr/bin
/bin
/usr/sbin
/sbin
I tried adding a combination of these to my $PATH, to no avail:
/opt/homebrew/lib/python3.9/site-packages
/opt/homebrew/Cellar/pyqt#5/5.15.6/lib/python3.9/site-packages/PyQt5
/opt/homebrew/lib/python3.9/site-packages/PyQt5
/opt/homebrew/opt/pyqt#5/5.15.6/bin
/opt/homebrew/opt/qt#5/5.15.6/bin
What I want to do:
pip install pyqt5
What happens when I try:
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing metadata (pyproject.toml) ... error
error: subprocess-exited-with-error
× Preparing metadata (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [29 lines of output]
Traceback (most recent call last):
File "/opt/homebrew/lib/python3.9/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 156, in prepare_metadata_for_build_wheel
hook = backend.prepare_metadata_for_build_wheel
AttributeError: module 'sipbuild.api' has no attribute 'prepare_metadata_for_build_wheel'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/opt/homebrew/lib/python3.9/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 363, in <module>
main()
File "/opt/homebrew/lib/python3.9/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 345, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
File "/opt/homebrew/lib/python3.9/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 160, in prepare_metadata_for_build_wheel
whl_basename = backend.build_wheel(metadata_directory, config_settings)
File "/opt/homebrew/Cellar/python#3.9/3.9.10/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/sipbuild/api.py", line 51, in build_wheel
project = AbstractProject.bootstrap('pep517')
File "/opt/homebrew/Cellar/python#3.9/3.9.10/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/sipbuild/abstract_project.py", line 83, in bootstrap
project.setup(pyproject, tool, tool_description)
File "/opt/homebrew/Cellar/python#3.9/3.9.10/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/sipbuild/project.py", line 594, in setup
self.apply_user_defaults(tool)
File "project.py", line 63, in apply_user_defaults
super().apply_user_defaults(tool)
File "/opt/homebrew/Cellar/python#3.9/3.9.10/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/pyqtbuild/project.py", line 70, in apply_user_defaults
super().apply_user_defaults(tool)
File "/opt/homebrew/Cellar/python#3.9/3.9.10/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/sipbuild/project.py", line 241, in apply_user_defaults
self.builder.apply_user_defaults(tool)
File "/opt/homebrew/Cellar/python#3.9/3.9.10/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/pyqtbuild/builder.py", line 67, in apply_user_defaults
raise PyProjectOptionException('qmake',
sipbuild.pyproject.PyProjectOptionException
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed
× Encountered error while generating package metadata.
╰─> See above for output.
note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
If I install it this way, I get no errors:
brew install pyqt#5
But my VS Code shows up like this, and none of submodules work:
My program used to work just fine, but I had recently installed Python 3.10 and have since uninstalled it. Ever since the new Python install, I've had this issue. Not sure how to tackle this. Thank you!

Answer 1

I've asked this question a number of different ways in a number of different places; none of the suggested answers work for me.
The closest thing to an answer that I got to was this:
https://www.zhihu.com/question/437075754/answer/1993415429
If you're unable to read it, it suggests this:
Pre-work, install homebrew, python 3.9.
First enter in the terminal:
brew install pyqt5
echo 'export PATH="/opt/homebrew/opt/qt#5/bin:$PATH"' >> ~/.zshrc
echo 'export PATH="/opt/homebrew/opt/pyqt#5/5.15.4_1/bin:$PATH"' >> ~/.zshrc
source ~/.zshrc
Then, copy all the contents of
/opt/homebrew/Cellar/pyqt#5/5.15.4_1/lib/python3.9/site-packages to
lib/python3.9/site-packages folder. If your homebrew installation
address and python installation address are not the default, you need
to modify these two addresses.
Finally, try it in python
import PyQt5
But this didn't work for me, either.
In the end, I ended up just installing PyQt6:
pip install PyQt6
The install completed without any errors. Now I am working on updating my code. Hopefully this will be useful for someone else coming here from an angry Google search. Code on, my friends.

Answer 2

I had the issue as yours. I solve with the following command.
pip3 install pyqt5

Answer 3

my install setup is
1.brew install qt
2.brew install libxml2
reference by TheCrazySwede answer ↓↓↓
3.brew install pyqt5
enter image description here
4.brew cleanup pyqt#5
5.echo 'export PATH="/opt/homebrew/opt/qt#5/bin:$PATH"' >> ~/.zshrc
6.echo 'export PATH="/opt/homebrew/opt/pyqt#5/5.15.4_1/bin:$PATH"' >> ~/.zshrc
7.source ~/.zshrc
8.pip3 install pyqt5-sip
9.pip3 install pyqt5
enter image description here
enter image description here
10.pip3 install lxml
11.make qt5py3
I hope can help for you.