Should python3-rpm-macros depend on python3?

2019-06-19 Thread Miro Hrončok

We have an interesting request for python3-rpm-macros to depend on python3.

See https://bugzilla.redhat.com/show_bug.cgi?id=1563789

Highlights:

 - users who build for Python 3 are told (in the guidelines) to BR python3-devel
   (that brings in both python3 and python3-rpm-macros)
 - the existence of python3-rpm-macros is left as an implementation detail for ^
 - in theory, those macros can be used with other Pythons
   (such as pypy3 or python36, that is most likely not done in practice)

Arguments:

 - to require: the macros are broken without a python3 interpreter
 - to not: the macros should work with any python3 interpreter

Solutions?

 - declare direct BR of macros without a python3 interpreter unsupported
 - add dependency on python3. unused if used with another interpreter
 - add a common virtual provide for all python3 interpreters
   or require (python3 or pypy3 or python36...) - very tedious


--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok
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Re: Should python3-rpm-macros depend on python3?

2019-06-19 Thread Neal Gompa
On Wed, Jun 19, 2019 at 6:05 AM Miro Hrončok  wrote:
>
> We have an interesting request for python3-rpm-macros to depend on python3.
>
> See https://bugzilla.redhat.com/show_bug.cgi?id=1563789
>
> Highlights:
>
>   - users who build for Python 3 are told (in the guidelines) to BR 
> python3-devel
> (that brings in both python3 and python3-rpm-macros)
>   - the existence of python3-rpm-macros is left as an implementation detail 
> for ^
>   - in theory, those macros can be used with other Pythons
> (such as pypy3 or python36, that is most likely not done in practice)
>
> Arguments:
>
>   - to require: the macros are broken without a python3 interpreter
>   - to not: the macros should work with any python3 interpreter
>
> Solutions?
>
>   - declare direct BR of macros without a python3 interpreter unsupported
>   - add dependency on python3. unused if used with another interpreter
>   - add a common virtual provide for all python3 interpreters
> or require (python3 or pypy3 or python36...) - very tedious
>

Have we ever tried using it with pypy3? Does it even work with that
(that is, pypy3-foo packages can be made)? If it does, we should just
add a common virtual provide to supported interpreters and require
that. Else, just require python3.


-- 
真実はいつも一つ!/ Always, there's only one truth!
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Re: Should python3-rpm-macros depend on python3?

2019-06-19 Thread Miro Hrončok

On 19. 06. 19 12:24, Neal Gompa wrote:

On Wed, Jun 19, 2019 at 6:05 AM Miro Hrončok  wrote:


We have an interesting request for python3-rpm-macros to depend on python3.

See https://bugzilla.redhat.com/show_bug.cgi?id=1563789

Highlights:

   - users who build for Python 3 are told (in the guidelines) to BR 
python3-devel
 (that brings in both python3 and python3-rpm-macros)
   - the existence of python3-rpm-macros is left as an implementation detail 
for ^
   - in theory, those macros can be used with other Pythons
 (such as pypy3 or python36, that is most likely not done in practice)

Arguments:

   - to require: the macros are broken without a python3 interpreter
   - to not: the macros should work with any python3 interpreter

Solutions?

   - declare direct BR of macros without a python3 interpreter unsupported
   - add dependency on python3. unused if used with another interpreter
   - add a common virtual provide for all python3 interpreters
 or require (python3 or pypy3 or python36...) - very tedious



Have we ever tried using it with pypy3? Does it even work with that
(that is, pypy3-foo packages can be made)? If it does, we should just
add a common virtual provide to supported interpreters and require
that. Else, just require python3.


In practice, I have not. However in theory:

$ rpm --define '__python3 /usr/bin/pypy3' --eval '%python3_sitearch'
/usr/lib64/pypy3-7.1/site-packages

$ rpm --define '__python3 /usr/bin/python3.5' --eval '%python3_sitearch'
/usr/lib64/python3.5/site-packages

$ rpm --define '__python3 /usr/bin/python3.4' --eval '%python3_sitearch'
/usr/lib64/python3.4/site-packages

$ rpm --define '__python3 /usr/bin/python3.8' --eval '%python3_sitearch'
/usr/lib64/python3.8/site-packages


--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok
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Re: Should python3-rpm-macros depend on python3?

2019-06-19 Thread Neal Gompa
On Wed, Jun 19, 2019 at 8:09 AM Miro Hrončok  wrote:
>
> On 19. 06. 19 12:24, Neal Gompa wrote:
> > On Wed, Jun 19, 2019 at 6:05 AM Miro Hrončok  wrote:
> >>
> >> We have an interesting request for python3-rpm-macros to depend on python3.
> >>
> >> See https://bugzilla.redhat.com/show_bug.cgi?id=1563789
> >>
> >> Highlights:
> >>
> >>- users who build for Python 3 are told (in the guidelines) to BR 
> >> python3-devel
> >>  (that brings in both python3 and python3-rpm-macros)
> >>- the existence of python3-rpm-macros is left as an implementation 
> >> detail for ^
> >>- in theory, those macros can be used with other Pythons
> >>  (such as pypy3 or python36, that is most likely not done in practice)
> >>
> >> Arguments:
> >>
> >>- to require: the macros are broken without a python3 interpreter
> >>- to not: the macros should work with any python3 interpreter
> >>
> >> Solutions?
> >>
> >>- declare direct BR of macros without a python3 interpreter unsupported
> >>- add dependency on python3. unused if used with another interpreter
> >>- add a common virtual provide for all python3 interpreters
> >>  or require (python3 or pypy3 or python36...) - very tedious
> >>
> >
> > Have we ever tried using it with pypy3? Does it even work with that
> > (that is, pypy3-foo packages can be made)? If it does, we should just
> > add a common virtual provide to supported interpreters and require
> > that. Else, just require python3.
>
> In practice, I have not. However in theory:
>
> $ rpm --define '__python3 /usr/bin/pypy3' --eval '%python3_sitearch'
> /usr/lib64/pypy3-7.1/site-packages
>
> $ rpm --define '__python3 /usr/bin/python3.5' --eval '%python3_sitearch'
> /usr/lib64/python3.5/site-packages
>
> $ rpm --define '__python3 /usr/bin/python3.4' --eval '%python3_sitearch'
> /usr/lib64/python3.4/site-packages
>
> $ rpm --define '__python3 /usr/bin/python3.8' --eval '%python3_sitearch'
> /usr/lib64/python3.8/site-packages
>

I took a look at pypy3, and I see we already define pypy3 variants of
the python3 macros... Do we want to deduplicate them and maybe have a
macro switch for flipping the interpreter? In that case, then
pypy3-devel should BR python3-rpm-macros...


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Re: Should python3-rpm-macros depend on python3?

2019-06-19 Thread Miro Hrončok

On 19. 06. 19 14:36, Neal Gompa wrote:

On Wed, Jun 19, 2019 at 8:09 AM Miro Hrončok  wrote:


On 19. 06. 19 12:24, Neal Gompa wrote:

On Wed, Jun 19, 2019 at 6:05 AM Miro Hrončok  wrote:


We have an interesting request for python3-rpm-macros to depend on python3.

See https://bugzilla.redhat.com/show_bug.cgi?id=1563789

Highlights:

- users who build for Python 3 are told (in the guidelines) to BR 
python3-devel
  (that brings in both python3 and python3-rpm-macros)
- the existence of python3-rpm-macros is left as an implementation detail 
for ^
- in theory, those macros can be used with other Pythons
  (such as pypy3 or python36, that is most likely not done in practice)

Arguments:

- to require: the macros are broken without a python3 interpreter
- to not: the macros should work with any python3 interpreter

Solutions?

- declare direct BR of macros without a python3 interpreter unsupported
- add dependency on python3. unused if used with another interpreter
- add a common virtual provide for all python3 interpreters
  or require (python3 or pypy3 or python36...) - very tedious



Have we ever tried using it with pypy3? Does it even work with that
(that is, pypy3-foo packages can be made)? If it does, we should just
add a common virtual provide to supported interpreters and require
that. Else, just require python3.


In practice, I have not. However in theory:

$ rpm --define '__python3 /usr/bin/pypy3' --eval '%python3_sitearch'
/usr/lib64/pypy3-7.1/site-packages

$ rpm --define '__python3 /usr/bin/python3.5' --eval '%python3_sitearch'
/usr/lib64/python3.5/site-packages

$ rpm --define '__python3 /usr/bin/python3.4' --eval '%python3_sitearch'
/usr/lib64/python3.4/site-packages

$ rpm --define '__python3 /usr/bin/python3.8' --eval '%python3_sitearch'
/usr/lib64/python3.8/site-packages



I took a look at pypy3, and I see we already define pypy3 variants of
the python3 macros... Do we want to deduplicate them and maybe have a
macro switch for flipping the interpreter? In that case, then
pypy3-devel should BR python3-rpm-macros...


No idea. I don't think that it is needed, I'm just saying it is possible.

--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok
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