----- Original Message -----
> From: "Radek Holy" <rholy@xxxxxxxxxx>
> To: "Development discussions related to Fedora" <devel@xxxxxxxxxxxxxxxxxxxxxxx>
> Cc: ndbecker2@xxxxxxxxx
> Sent: Tuesday, June 23, 2015 5:47:10 PM
> Subject: Re: need rpm help (nothing provides /bin/python)
>
>
>
> ----- Original Message -----
> > From: "Michael Šimáček" <msimacek@xxxxxxxxxx>
> > To: "Development discussions related to Fedora"
> > <devel@xxxxxxxxxxxxxxxxxxxxxxx>, ndbecker2@xxxxxxxxx
> > Sent: Tuesday, June 23, 2015 3:58:49 PM
> > Subject: Re: need rpm help (nothing provides /bin/python)
> >
> > On 2015-06-23 13:21, Neal Becker wrote:
> > > I updated mercurial to mercurial-3.4.1-1 and did a fedpkg push.
> > >
> > > Now I tried a local build, and tried to locally install, but I got:
> > > sudo dnf install x86_64/*3.4.1*
> > > [sudo] password for nbecker:
> > > Last metadata expiration check performed 0:22:21 ago on Tue Jun 23
> > > 06:57:18
> > > 2015.
> > > Error: nothing provides /bin/python needed by
> > > mercurial-3.4.1-1.fc23.x86_64.
> > > nothing provides /bin/python needed by mercurial-3.4.1-1.fc23.x86_64
> > >
> > > Anyone see how to fix this?
> > >
> > > Also, can someone please confirm that I correctly took care of
> > > obsoleting the mercurial-emacs{-el} as per:
> > >
> > > https://fedoraproject.org/wiki/Packaging:Emacs
> > >
> >
> > DNF cannot resolve provides that look like file path:
> > https://bugzilla.redhat.com/show_bug.cgi?id=1223478
>
> No, please don't speak for DNF if you don't know it. This is not the same.
>
> Your bug is precisely about the inability to specify virtual file provides on
> command line.
>
> > Koji still uses Yum, that's why it works there.
> >
> > Michael Simacek
>
> The problem is that there is no package that "Provides: /bin/python" nor
> lists "/bin/python" in the "%files" section.
>
>
> # cat >foo.spec <<EOF
> > Name: foo
> > Version: 1.0.0
> > Release: 1
> > Summary: foo
> > License: BSD
> > BuildArch: noarch
> >
> > Requires: /bin/python
> >
> > %description
> > foo
> >
> > %files
> > EOF
> # rpmbuild -bb foo.spec
> # dnf install ~/rpmbuild/RPMS/foo-1.0.0-1.noarch.rpm
> Error: nothing provides /bin/python needed by foo-1.0.0-1.noarch
>
>
> # cat >foo.spec <<EOF
> > Name: foo
> > Version: 1.0.0
> > Release: 1
> > Summary: foo
> > License: BSD
> > BuildArch: noarch
> >
> > Requires: /usr/bin/python
> >
> > %description
> > foo
> >
> > %files
> > EOF
> # rpmbuild -bb foo.spec
> # dnf install ~/rpmbuild/RPMS/foo-1.0.0-1.noarch.rpm
> Dependencies resolved.
> ================================================================================
> Package Arch Version Repository
> Size
> ================================================================================
> Installing:
> foo noarch 1.0.0-1 @commandline 5.4
> k
>
> Transaction Summary
> ================================================================================
> Install 1 Package
>
> Total size: 5.4 k
> Installed size: 0
> Downloading Packages:
> Running transaction check
> Transaction check succeeded.
> Running transaction test
> Transaction test succeeded.
> Running transaction
> Installing : foo-1.0.0-1.noarch
> 1/1
> warning: Unable to get systemd shutdown inhibition lock
> Verifying : foo-1.0.0-1.noarch
> 1/1
>
> Installed:
> foo.noarch 1.0.0-1
>
> Complete!
>
>
> So, to fix it, the "Requires:" should be e.g. "/usr/bin/python".
See also https://fedoraproject.org/w/index.php?title=Packaging:Guidelines&oldid=413629#Effect_of_the_UsrMove_Fedora_Feature
--
Radek Holý
Associate Software Engineer
Software Management Team
Red Hat Czech
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