On Fri, Feb 17, 2012 at 06:23:25PM +0000, Paul Howarth wrote: > Toshio Kuratomi <a.badger@xxxxxxxxx> wrote: > > > > However, that won't prevent you from having other errors/warnings > > like this: sh: /usr/bin/python3: No such file or directory > > You could get rid of those by using: > > %{!?py3ver: %global py3ver %(%{?__python3} -c 'import sys; > print(sys.version[0:3])' 2>/dev/null)} > > And sometimes you might even prefer: > > %{!?py3ver: %global py3ver %(%{?__python3} -c 'import sys; > print(sys.version[0:3])' 2>/dev/null || echo 3.0)} > > That would give a result that "looked right" in the absence of python3, > giving other bits of the spec that depend on that definition a better > chance of working as expected. > > > Without python3 installed, macros in the spec file can't be expanded > > correctly (because their definitions depend on python3). The spec > > file is BuildRequireing python3 so it shouldn't be expected that you > > can operate on the spec file without python3 installed. > > I'd prefer to see specs a bit more robust so that for instance you > could run "spectool" on them to download upstream sources and then do a > mockbuild, which wouldn't require python3 or whatever to be installed > on the build host. > I tested this with spectool -g and python-psycopg2 and all variants of that py3ver line work.(without even a warning). So spectool isn't really an issue. -Toshio
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