Problem installing PyQt6 via PyPI

[Detlev Offenbach]

Am 05.01.21 um 12:34 schrieb Phil Thompson:
> On 05/01/2021 11:29, Detlev Offenbach wrote:
>> Am 05.01.21 um 11:33 schrieb Phil Thompson:
>>> On 05/01/2021 10:18, Detlev Offenbach wrote:
>>>> Hello Phil,
>>>>
>>>> trying to install PyQt6 via "pip install PyQt6" results in an error.
>>>> The command downloads the .tar.gz file and tries to build the wheel
>>>> from there, which fails. Trying to install the downloaded wheel fails
>>>> as well.
>>>>
>>>> ./pyqt6env/bin/python3 -m pip install
>>>> ~/Downloads/Python/PyQt/PyQt6/PyQt6-6.0.0-6.0.0-cp36.cp37.cp38.cp39-abi3-manylinux_2_28_x86_64.whl 
>>>> ERROR:
>>>> PyQt6-6.0.0-6.0.0-cp36.cp37.cp38.cp39-abi3-manylinux_2_28_x86_64.whl
>>>> is not a supported wheel on this platform.
>>>>
>>>> The test was done on Kubuntu 20.10 with Python 3.9
>>>
>>> Do you have an up to date version of pip?
>>
>> That was the issue. Per default pip v20.1.1 was installed into the
>> virtual environment (created via "python3.9 -m venv pyqt6env"). After
>> your hint I upgraded pip (it is now v20.3.3) and PyQt6 installed fine.
>>
>> Should the wheel contain a dependency on the recent version of pip?
>
> No because what the out-of-date version did was correct, ie. try to 
> build from source. The underlying "bug" with pip is the poor error 
> reporting when it failed to build from source.
>
Thanks for the clarification. Now I remember, why the eric install 
script checks for an up-to-date pip first :-)

Detlev

-- 
Detlev Offenbach
detlev at die-offenbachs.de