Re: [gentoo-user] ebuild : how to check for python version
On Tue, Aug 11, 2020 at 9:38 AM Helmut Jarausch wrote:
>
> On 08/11/2020 03:08:16 PM, Mike Gilbert wrote:
> > On Sun, Aug 2, 2020 at 10:47 AM Helmut Jarausch
> > <_ j_ a_ r_ a_ u_ s_ c_ h_ @_ s_ k_ y_ n_ e_ t_ ._ b_ e> wrote:
> > Hi,
> > in an ebuild I have to apply a patch only if this package is
> > installed
> > for python3.9.
> > The ebuild should work for PYTHON_COMPAT=( python3_{8,9} )
> >
> > How can I check for Pythons version in src_prepare or similar
> > functions.
> >
> > Many thanks for a hint,
> > Helmut
> >
> > I would suggest creating a patch that can be applied unconditionally
> > instead.
> >
>
> That would imply different function definitions within an 'if / else'
> clause.
> I don't like this.
>
What will you do when someone wants/needs to install it for both
python3.8 and python3.9 simultaneously?
If you want to support both versions, it's better to have code that
actually works with both of them.
Re: [gentoo-user] ebuild : how to check for python version
On 08/11/2020 03:08:16 PM, Mike Gilbert wrote:
On Sun, Aug 2, 2020 at 10:47 AM Helmut Jarausch
<_j_a_r_a_u_s_c_h_@_s_k_y_n_e_t_._b_e> wrote:
Hi,
in an ebuild I have to apply a patch only if this package is
installed
for python3.9.
The ebuild should work for PYTHON_COMPAT=( python3_{8,9} )
How can I check for Pythons version in src_prepare or similar
functions.
Many thanks for a hint,
Helmut
I would suggest creating a patch that can be applied unconditionally
instead.
That would imply different function definitions within an 'if / else'
clause.
I don't like this.
Re: [gentoo-user] ebuild : how to check for python version
On Sun, Aug 2, 2020 at 10:47 AM Helmut Jarausch wrote:
> Hi,
> in an ebuild I have to apply a patch only if this package is installed
> for python3.9.
> The ebuild should work for PYTHON_COMPAT=( python3_{8,9} )
>
> How can I check for Pythons version in src_prepare or similar functions.
>
> Many thanks for a hint,
> Helmut
>
> I would suggest creating a patch that can be applied unconditionally
instead.
Re: [gentoo-user] ebuild : how to check for python version
пн, 3 авг. 2020 г. в 11:05, Neil Bothwick : > > On Mon, 3 Aug 2020 02:44:43 +0300, Alexey Mishustin wrote: > > > This should check if 3.9 is installed: > > if has_version '=dev-lang/python-3.9'; then > > Shouldn't that be has_version 'dev-lang/python:3.9' to check for any > version of 3.9? Sure! My fault. > However, that only checks for which python versions are installed before > the ebuild is invoked. Would it make more sense to check PYTHON_TARGETS > instead? That can also cover the situation of the package being > installed without 3.9 but then 3.9 being installed later as a rebuild > would be triggered by --changed-use. Looks like it's what Helmut was looking for. -- Best regards, Alex
Re: [gentoo-user] ebuild : how to check for python version
On Mon, 3 Aug 2020 02:44:43 +0300, Alexey Mishustin wrote:
> > in an ebuild I have to apply a patch only if this package is installed
> > for python3.9.
> > The ebuild should work for PYTHON_COMPAT=( python3_{8,9} )
> >
> > How can I check for Pythons version in src_prepare or similar
> > functions.
>
> This should check if 3.9 is installed:
> if has_version '=dev-lang/python-3.9'; then
Shouldn't that be has_version 'dev-lang/python:3.9' to check for any
version of 3.9?
However, that only checks for which python versions are installed before
the ebuild is invoked. Would it make more sense to check PYTHON_TARGETS
instead? That can also cover the situation of the package being
installed without 3.9 but then 3.9 being installed later as a rebuild
would be triggered by --changed-use.
--
Neil Bothwick
"We can't solve problems by using the same kind of thinking we used when
we created them." (Albert Einstein)
pgpniucbj4Dip.pgp
Description: OpenPGP digital signature
Re: [gentoo-user] ebuild : how to check for python version
вс, 2 авг. 2020 г. в 17:48, Helmut Jarausch :
>
> Hi,
> in an ebuild I have to apply a patch only if this package is installed
> for python3.9.
> The ebuild should work for PYTHON_COMPAT=( python3_{8,9} )
>
> How can I check for Pythons version in src_prepare or similar functions.
Hi,
This should check if 3.9 is installed:
if has_version '=dev-lang/python-3.9'; then
But for which python version will the package be installed - isn't it
another question? (still learning too)
--
Best regards,
Alex
Re: [gentoo-user] ebuild : how to check for python version
On 8/2/20 1:34 PM, Helmut Jarausch wrote: On 08/02/2020 06:15:12 PM, Ramon Fischer wrote: Hi Helmut, maybe "python_is_python3"[1] will help? I am still new to creating ebuilds. :) -Ramon Thanks Ramon for this hint. I need to know which version of Python3 ( Python3.8 or Python3.9) and I could see how python_is_python3 helps here. Helmut editing /usr/portage/profiles/base/use.stable.mask might give you the granularity of control you see, BUT I have not tested it yet, related to python3_9, so I'd recommend deep research and change packages one at a time, regardless of how you choose to use version 3_9. https://docs.python.org/3.9/whatsnew/3.9.html just because it is (?) release, does not mean it is stable and ready for gentoo beta testing (my speculation). hth, James
Re: [gentoo-user] ebuild : how to check for python version
On 08/02/2020 06:15:12 PM, Ramon Fischer wrote: Hi Helmut, maybe "python_is_python3"[1] will help? I am still new to creating ebuilds. :) -Ramon Thanks Ramon for this hint. I need to know which version of Python3 ( Python3.8 or Python3.9) and I could see how python_is_python3 helps here. Helmut
Re: [gentoo-user] ebuild : how to check for python version
Hi Helmut,
maybe "python_is_python3"[1] will help? I am still new to creating
ebuilds. :)
-Ramon
[1]
https://devmanual.gentoo.org/eclass-reference/python-utils-r1.eclass/index.html
On 02/08/2020 16:47, Helmut Jarausch wrote:
Hi,
in an ebuild I have to apply a patch only if this package is installed
for python3.9.
The ebuild should work for PYTHON_COMPAT=( python3_{8,9} )
How can I check for Pythons version in src_prepare or similar functions.
Many thanks for a hint,
Helmut
[gentoo-user] ebuild : how to check for python version
Hi,
in an ebuild I have to apply a patch only if this package is installed
for python3.9.
The ebuild should work for PYTHON_COMPAT=( python3_{8,9} )
How can I check for Pythons version in src_prepare or similar functions.
Many thanks for a hint,
Helmut
