Missing PyQt6-Qt6 6.1

Sat Apr 17 10:18:17 BST 2021

On 17/04/2021 09:52, Florian Bruhin wrote:
> On Fri, Apr 16, 2021 at 09:27:57AM +0100, Phil Thompson wrote:
>> 
>> On 14/04/2021 13:02, Florian Bruhin wrote:
>> > On Mon, Apr 12, 2021 at 06:16:56PM +0100, Phil Thompson wrote:
>> > >
>> > > On 08/04/2021 13:10, Florian Bruhin wrote:
>> > > > Hey,
>> > > >
>> > > > I wanted to test my pytest-qt changes[1] with the last PyQt6 enum/flag
>> > > > naming changes[2], but it looks like PyQt6 is currently uninstallable
>> > > > from Riverbank's PyPI server:
>> > > >
>> > > >    Looking in indexes: https://www.riverbankcomputing.com/pypi/simple/
>> > > >    Collecting PyQt6
>> > > >      Downloading
>> > > > https://www.riverbankcomputing.com/pypi/packages/PyQt6/PyQt6-6.1.0.dev2104051108-cp36.cp37.cp38.cp39-abi3-manylinux_2_28_x86_64.whl
>> > > > (6.7 MB)
>> > > >    Collecting PyQt6-Qt6
>> > > >      Using cached PyQt6_Qt6-6.0.2-py3-none-manylinux_2_28_x86_64.whl
>> > > > (46.2 MB)
>> > > >    ERROR: Cannot install PyQt6-Qt6 and pyqt6==6.1.0.dev2104051108
>> > > > because these package versions have conflicting dependencies.
>> > > >
>> > > >    The conflict is caused by:
>> > > >        The user requested PyQt6-Qt6
>> > > >        pyqt6 6.1.0.dev2104051108 depends on PyQt6-Qt6>=6.1
>> > > >
>> > > > There's no PyQt6-Qt6>=6.1 on that server (neither on PyPI), which makes
>> > > > sense because Qt 6.1 hasn't been released yet[3]. However, it looks like
>> > > > PyQt6 has the requirement bumped already, and older snapshots are not
>> > > > available anymore...
>> > > >
>> > > > Ideally, there'd be a PyQt6-Qt6 wheel on the PyPI snapshot server which
>> > > > packages the latest Qt 6.1 Beta 2 (and soon 3), but I'd be happy with
>> > > > any solution which actually lets me install/test snapshots :)
>> > > >
>> > > > (On a related note, I now have a nightly CI job[4] running my own
>> > > > project's tests against PyQt from the snapshot server - only PyQt5 for
>> > > > the moment until QtWebEngine is available with Qt 6, but after that, I
>> > > > should be able to report potential regressions before releases due to
>> > > > that)
>> > >
>> > > I think everything is now in place.
>> >
>> > Unfortunately I still can't install with a clean virtualenv:
>> >
>> >     $ pip install --index-url
>> > https://www.riverbankcomputing.com/pypi/simple/ --pre --upgrade PyQt6
>> >     Looking in indexes: https://www.riverbankcomputing.com/pypi/simple/
>> >     Collecting PyQt6
>> >       Downloading
>> > https://www.riverbankcomputing.com/pypi/packages/PyQt6/PyQt6-6.1.0.dev2104101804-cp36.cp37.cp38.cp39-abi3-manylinux_2_28_x86_64.whl
>> > (6.7 MB)
>> >       Downloading
>> > https://www.riverbankcomputing.com/pypi/packages/PyQt6/PyQt6-6.1.0.dev2104051108-cp36.cp37.cp38.cp39-abi3-manylinux_2_28_x86_64.whl
>> > (6.7 MB)
>> >     ERROR: Cannot install pyqt6==6.1.0.dev2104051108 and
>> > pyqt6==6.1.0.dev2104101804 because these package versions have
>> > conflicting dependencies.
>> >
>> >     The conflict is caused by:
>> >         pyqt6 6.1.0.dev2104101804 depends on PyQt6-Qt6>=6.1
>> >         pyqt6 6.1.0.dev2104051108 depends on PyQt6-Qt6>=6.1
>> >
>> >     To fix this you could try to:
>> >     1. loosen the range of package versions you've specified
>> >     2. remove package versions to allow pip attempt to solve the
>> > dependency conflict
>> >
>> >     ERROR: ResolutionImpossible: for help visit
>> > https://pip.pypa.io/en/latest/user_guide/#fixing-conflicting-dependencies
>> >
>> > Looks like 6.1.0b3 doesn't match >=6.1:
>> >
>> >     $ pip install --verbose --index-url
>> > https://www.riverbankcomputing.com/pypi/simple/ --pre --upgrade
>> > 'PyQt6-Qt6>=6.1'
>> >     [...]
>> >       Found link
>> > https://www.riverbankcomputing.com/pypi/packages/PyQt6-Qt6/PyQt6_Qt6-6.1.0b3-py3-none-manylinux_2_28_x86_64.whl#md5=952f8fba31fc4515b8b3fe24e95978c4
>> > (from https://www.riverbankcomputing.com/pypi/simple/pyqt6-qt6/),
>> > version: 6.1.0b3
>> >     [...]
>> >     ERROR: Could not find a version that satisfies the requirement
>> > PyQt6-Qt6>=6.1
>> >
>> > and indeed:
>> >
>> >     >>> from pip._vendor.packaging.version import Version
>> >     >>> Version('6.1.0b3') >= Version('6.1')
>> >     False
>> >
>> > I'm not too familiar with PEP 440, but maybe PyQt6 should depend on
>> > PyQt6-Qt6>=6.1dev or so?
>> >
>> > From what I understand that is equivalent to 6.1.dev0 and
>> > gets sorted before any alpha/beta releases:
>> >
>> >     https://www.python.org/dev/peps/pep-0440/
>> >
>> >     Within a numeric release (1.0, 2.7.3), the following suffixes are
>> >     permitted and MUST be ordered as shown:
>> >
>> >     .devN, aN, bN, rcN, <no suffix>, .postN
>> >
>> > thus:
>> >
>> >     >>> from pip._vendor.packaging.version import Version
>> >     >>> Version('6.1.0b3') >= Version('6.1dev')
>> >     True
>> 
>> I think this is all now fixed.
> 
> No difference with PyQt6-6.1.0.dev2104161239 unfortunately:
> 
>   Looking in indexes: https://www.riverbankcomputing.com/pypi/simple/
>   Collecting PyQt6
>     Downloading
> https://www.riverbankcomputing.com/pypi/packages/PyQt6/PyQt6-6.1.0.dev2104161239-cp36.cp37.cp38.cp39-abi3-manylinux_2_28_x86_64.whl
> (6.7 MB)
>        |████████████████████████████████| 6.7 MB 1.6 MB/s
>   ERROR: Could not find a version that satisfies the requirement 
> PyQt6-Qt6>=6.1
>   ERROR: No matching distribution found for PyQt6-Qt6>=6.1

The following pip command works for me...

pip install --index-url https://www.riverbankcomputing.com/pypi/simple/ 
--pre PyQt6

...the output of which is...

Looking in indexes: https://www.riverbankcomputing.com/pypi/simple/
Collecting PyQt6
   Downloading 
https://www.riverbankcomputing.com/pypi/packages/PyQt6/PyQt6-6.1.0.dev2104161239-cp36.cp37.cp38.cp39-abi3-manylinux_2_28_x86_64.whl 
(6.7 MB)
      |████████████████████████████████| 6.7 MB 2.1 MB/s
Collecting PyQt6-Qt6>=6.1.0b3
   Downloading 
https://www.riverbankcomputing.com/pypi/packages/PyQt6-Qt6/PyQt6_Qt6-6.1.0b3-py3-none-manylinux_2_28_x86_64.whl 
(46.5 MB)
      |████████████████████████████████| 46.5 MB 1.7 MB/s
Collecting PyQt6-sip<14,>=13.0
   Downloading 
https://www.riverbankcomputing.com/pypi/packages/PyQt6-sip/PyQt6_sip-13.0.2-cp39-cp39-manylinux1_x86_64.whl 
(285 kB)
      |████████████████████████████████| 285 kB 2.4 MB/s
Installing collected packages: PyQt6-sip, PyQt6-Qt6, PyQt6
Successfully installed PyQt6-6.1.0.dev2104161239 PyQt6-Qt6-6.1.0b3 
PyQt6-sip-13.0.2

> (Also, it looks like the beta Qt wheel vanished from
> https://riverbankcomputing.com/pypi/simple/pyqt6/ again?)

That's not where they are stored...

https://www.riverbankcomputing.com/pypi/simple/pyqt6-qt6/

Phil