Cannot install PyQt6 tools in Python 3.11 on Windows

Fri Apr 29 17:24:17 BST 2022

I installed the Python 3.11 pre-release on my Windows 11 computer: 
[ https://www.python.org/downloads/release/python-3110a7/ | https://www.python.org/downloads/release/python-3110a7/ ] 

I installed it in the folder C:\Python311\ 

Then I launched a command prompt and installed wheel, pyqt6 and pyqt6-tools . As you can see, something goes wrong when installing pyqt6-tools : 

>pip install wheel 
Collecting wheel 
Downloading wheel-0.37.1-py2.py3-none-any.whl (35 kB) 
Installing collected packages: wheel 
Successfully installed wheel-0.37.1 

>pip install pyqt6 
Collecting pyqt6 
Downloading PyQt6-6.3.0-cp37-abi3-win_amd64.whl (6.2 MB) 
---------------------------------------- 6.2/6.2 MB 10.7 MB/s eta 0:00:00 
Collecting PyQt6-sip<14,>=13.2 
Downloading PyQt6_sip-13.3.1.tar.gz (108 kB) 
---------------------------------------- 108.3/108.3 KB 6.1 MB/s eta 0:00:00 
Installing build dependencies ... done 
Getting requirements to build wheel ... done 
Preparing metadata (pyproject.toml) ... done 
Collecting PyQt6-Qt6>=6.3.0 
Downloading PyQt6_Qt6-6.3.0-py3-none-win_amd64.whl (45.8 MB) 
---------------------------------------- 45.8/45.8 MB 11.3 MB/s eta 0:00:00 
Building wheels for collected packages: PyQt6-sip 
Building wheel for PyQt6-sip (pyproject.toml) ... done 
Created wheel for PyQt6-sip: filename=PyQt6_sip-13.3.1-cp311-cp311-win_amd64.whl size=71550 sha256=4bc5340bdce65cccb581389f646d712aa78abbdae84d461120e9565426dc93c8 
Stored in directory: C:\Users\krist\AppData\Local\Temp\pip-ephem-wheel-cache-jmbk1_kb\wheels\c3\af\39\f00fa6b0b54378c6b571e7d38750537a92e95390d4247d3b9e 
Successfully built PyQt6-sip 
Installing collected packages: PyQt6-Qt6, PyQt6-sip, pyqt6 
Successfully installed PyQt6-Qt6-6.3.0 PyQt6-sip-13.3.1 pyqt6-6.3.0 

>pip install pyqt6-tools 
Collecting pyqt6-tools 
Downloading pyqt6_tools-6.1.0.3.2-py3-none-any.whl (29 kB) 
Downloading pyqt6_tools-6.0.3.3.2-py3-none-any.whl (29 kB) 
Collecting click 
Downloading click-8.1.3-py3-none-any.whl (96 kB) 
---------------------------------------- 96.6/96.6 KB 5.4 MB/s eta 0:00:00 
Collecting pyqt6-tools 
Downloading pyqt6_tools-6.0.2.3.2-py3-none-any.whl (29 kB) 
Collecting pyqt6==6.0.2 
Downloading PyQt6-6.0.2.tar.gz (940 kB) 
---------------------------------------- 940.8/940.8 KB 6.6 MB/s eta 0:00:00 
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 
╰─> [40 lines of output] 
Traceback (most recent call last): 
File "C:\Python311\Lib\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 "C:\Python311\Lib\site-packages\pip\_vendor\pep517\in_process\_in_process.py", line 363, in <module> 
main() 
^^^^^^ 
File "C:\Python311\Lib\site-packages\pip\_vendor\pep517\in_process\_in_process.py", line 345, in main 
json_out['return_val'] = hook(**hook_input['kwargs']) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
File "C:\Python311\Lib\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 "C:\Users\krist\AppData\Local\Temp\pip-build-env-1ejos5sl\overlay\Lib\site-packages\sipbuild\api.py", line 51, in build_wheel 
project = AbstractProject.bootstrap('pep517') 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
File "C:\Users\krist\AppData\Local\Temp\pip-build-env-1ejos5sl\overlay\Lib\site-packages\sipbuild\abstract_project.py", line 83, in bootstrap 
project.setup(pyproject, tool, tool_description) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
File "C:\Users\krist\AppData\Local\Temp\pip-build-env-1ejos5sl\overlay\Lib\site-packages\sipbuild\project.py", line 594, in setup 
self.apply_user_defaults(tool) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
File "C:\Users\krist\AppData\Local\Temp\pip-install-tat_ias8\pyqt6_920842ce0fe64e4a89597e45e5a8549f\project.py", line 60, in apply_user_defaults 
super().apply_user_defaults(tool) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
File "C:\Users\krist\AppData\Local\Temp\pip-build-env-1ejos5sl\overlay\Lib\site-packages\pyqtbuild\project.py", line 70, in apply_user_defaults 
super().apply_user_defaults(tool) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
File "C:\Users\krist\AppData\Local\Temp\pip-build-env-1ejos5sl\overlay\Lib\site-packages\sipbuild\project.py", line 241, in apply_user_defaults 
self.builder.apply_user_defaults(tool) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
File "C:\Users\krist\AppData\Local\Temp\pip-build-env-1ejos5sl\overlay\Lib\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. 

I thought the reason could be related to access rights. So I launched a cmd prompt in admin mode. Unfortunately, the problem remains. 

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