[PyQt] ANN: PyQt v5.14.1 Released

[Phil Thompson]

An old pip never gets that far.

On 06/01/2020 17:18, Grzegorz Bokota wrote:
> So maybe add check of pip version in setup.py and print warning 
> message?
> 
> Pon., 6 sty 2020, 18:11 użytkownik Phil Thompson <
> phil at riverbankcomputing.com> napisał:
> 
>> It's not a question of "upgrading". The Qt binaries use glibc v2.17. 
>> The
>> corresponding tag is manylinux2014. The issue is that that requires a
>> recent version of pip.
>> 
>> Phil
>> 
>> On 06/01/2020 16:59, Grzegorz Bokota wrote:
>> > And this glibc problem cannot be fixed with manylinux2010? There is a
>> > need
>> > to upgrade to manylinux2014?
>> >
>> > Regards,
>> > Grzegorz Bokota
>> >
>> > Pon., 6 sty 2020, 14:54 użytkownik Florian Bruhin <me at the-compiler.org>
>> > napisał:
>> >
>> >> On Mon, Jan 06, 2020 at 01:06:22PM +0000, Phil Thompson wrote:
>> >> > On 06/01/2020 12:55, Florian Bruhin wrote:
>> >> > > Hey,
>> >> > >
>> >> > > On Mon, Jan 06, 2020 at 01:04:32AM +0000, Phil Thompson wrote:
>> >> > > > PyQt v5.14.1 has been released. This is a minor bug-fix release.
>> >> > >
>> >> > > It looks like that release is a manylinux2014 rather than a
>> manylinux1
>> >> > > release.
>> >> > > Is that intended?
>> >> >
>> >> > Yes. The manylinux1 tag was always a lie. The issue is the GLIBC
>> >> dependency
>> >> > which is imposed by Qt.
>> >>
>> >> I guess it'd be good to keep up that lie until PyQt 5.15 or so, when
>> >> tooling
>> >> hopefully has caught up. Rationale below.
>> >>
>> >> > > - Why is it building from source instead of using the wheel?
>> >> >
>> >> > Presumably because it doesn't like any of the wheels, probably because
>> >> pip
>> >> > is too old.
>> >>
>> >> Ah, it looks like this happens because of how "python3 -m venv" works.
>> >> It
>> >> uses
>> >> Python's ensurepip module, which as of Python 3.8.1 bundles pip 19.2.3
>> >> (i.e.
>> >> new enough for manylinux1 and manylinux2010, but not manylinux2014 -
>> >> see
>> >> [1]).
>> >>
>> >> Here's an example of what doesn't work anymore:
>> >>
>> >>     $ pip --version
>> >>     pip 19.3.1 from
>> >> /home/florian/tmp/.hostenv/lib/python3.8/site-packages/pip (python
>> >> 3.8)
>> >>     $ python3 --version
>> >>     Python 3.8.1
>> >>
>> >>     $ python3 -m venv .venv
>> >>     $ .venv/bin/pip --version
>> >>     pip 19.2.3 from
>> >> /home/florian/tmp/.venv/lib/python3.8/site-packages/pip (python 3.8)
>> >>
>> >>     $ .venv/bin/pip install --only-binary :all: PyQt5==5.14.1
>> >>     Collecting PyQt5==5.14.1
>> >>       ERROR: Could not find a version that satisfies the requirement
>> >> PyQt5==5.14.1 (from versions: [...], 5.14.0)
>> >>
>> >> In other words, if you use the Python builtin way of creating virtual
>> >> environments, you'll need an extra step to be able to install PyQt5
>> >> wheels
>> >> now.
>> >>
>> >> When using wrappers around venv such as tox, that extra step might not
>> >> be
>> >> supported in some obvious way (in the case of tox, I don't think I can
>> >> get
>> >> it
>> >> to upgrade the virtualenv's pip before installing dependencies).
>> >>
>> >> [1]
>> >>
>> https://github.com/python/cpython/blob/v3.8.1/Lib/ensurepip/__init__.py#L13
>> >> [2] https://docs.python.org/3/library/venv.html
>> >>
>> >> Florian
>> >>
>> >> --
>> >> me at the-compiler.org (Mail/XMPP) | https://www.qutebrowser.org
>> >>        https://bruhin.software/ |
>> >> https://github.com/sponsors/The-Compiler/
>> >>        GPG: 916E B0C8 FD55 A072 | https://the-compiler.org/pubkey.asc
>> >>              I love long mails! | https://email.is-not-s.ms/
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>> >>
>> 
>>