Re: Clarification of python packaging guidelines

[Tomas Orsava <torsava@xxxxxxxxxx>]

On 03/17/2017 02:22 PM, Marcin Dulak wrote:

On Fri, Mar 17, 2017 at 2:02 PM, Miro Hrončok <mhroncok@xxxxxxxxxx> wrote:

On 9.3.2017 01:53, Marcin Dulak wrote:

On Thu, Mar 9, 2017 at 12:39 AM, Orion Poplawski <orion@xxxxxxxxxxxxx
<mailto:orion@xxxxxxxxxxxxx>> wrote:

    On 03/07/2017 10:16 AM, Marcin Dulak wrote:
    > Hi,
    >
    > I have doubts about https://fedoraproject.org/wiki/Packaging:Python
    <https://fedoraproject.org/wiki/Packaging:Python>
    >
    > "For other executables, the general rule is:
    >
    > If only one executable is to be shipped, then it owns its own slot and should use /usr/bin/python3 from Fedora 22 on."
    >
    > The problem is discussed here
    >
    > https://bugzilla.redhat.com/show_bug.cgi?id=1430020
    <https://bugzilla.redhat.com/show_bug.cgi?id=1430020>
    >
    > Please note that I prefer to keep the same spec file for Fedora and EPEL, otherwise it's too much burden maintaining it.
    > I need help for correcting the spec so it complies with the guidelines, and makes sense for the users of the package.

    My $0.02:

    - I would suggest shipping the /usr/bin scripts in an 'idstools'
    sub-package
    that requires the appropriate python?-idstools package.



but the scripts contain different shebangs depending on the python version,
so the sub-package cannot be really named independently of the python
version.

For now I went with the standard way of providing all those script-2.X,
script-2, script-3.X, script-3, script
in the appropriate packages.

If the executables provide the same functionality on both Python versions, you SHOULD not do this.

then how can I make the executables (scripts) available for both python2 and python3?

The script differ only in the shebang line.

Marcin

Executables are located in /usr/bin/ and are only intended to be run as programs, not imported into Python. And if both Python 2 and 3 versions of the executable have the same behavior, then you don't need to make the executables available for both Python 2 and 3, only the Python 3 version will suffice.

Tomas

 

    - Since EL7 predates Fedora 22, python2 is considered the default
    python there
    and the idstool scripts should be using the python2 version.


Marcin




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