DNF: "There are following alternatives to this package"
by Tomas Orsava
Hi!
We'd like to propose a new functionality for dnf: When a user tries to
install a package XYZ and dnf doesn't find it, dnf would recommend them
alternative packages. These offered packages would advertise that they
are an alternative for XYZ using a specially formatted Provides tag.
For example, packages `python2-requests` and `python3-requests` would
both have the following tag:
Provides: alternative-for(python-requests) = %{version}-%{release}
(Possibly via the already existing and widespread %python_provide macro
in the Python case.)
And when the user would try to install `python-requests`, dnf would look
for packages with the relevant Provides tag and display them:
# dnf install python-requests
* There are following alternatives to this package:
python2-requests python3-requests
No match for argument: python-requests
Error: Unable to find a match
This would be very similar to an already existing functionality that
searches for lowercase package names:
# dnf install python3-REQUESTS
* Maybe you meant: python3-requests
No match for argument: python3-REQUESTS
Error: Unable to find a match
(That functionality is broken in some versions—RHBZ#1628514—so you might
not see this result at the moment.)
What are your thoughts?
One possible addition would be to include a parameter for weight in the
Provides tag, so that python3-requests could be listed as the preferred
option before python2-requests.
All the best,
Tomas Orsava
5 years, 7 months
Hi
by James Thornber
Emailing to be able to post to list.
5 years, 7 months
Your package will fail to build due to ambiguous Python shebang
by Miro Hrončok
Hi, according to my query, latest build of your package failed the
Taskotron check that checks if the brp-magle-sehbang script mangled the
shebangs from python to python2.
See something like this in the build.log:
*** WARNING: mangling shebang in ... from #!/usr/bin/env python to
#!/usr/bin/python2. This will become an ERROR, fix it manually!
This will soon become an error in F30 as promised 2 releases ago.
https://fedoraproject.org/wiki/Changes/Make_ambiguous_python_shebangs_error
The motivation is to not drag dependency on python2 when it is not
needed. If you are hit by this error, you should check whether the
executable Python file with the Python shebang is actually needed in
your package. If it is needed, fix the shebang manually to python3 or
python2 explicitly.
Here's how:
https://fedoraproject.org/wiki/Changes/Make_ambiguous_python_shebangs_err...
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mrunge python-cherrypy syslog-ng
mschorm mariadb
msivak mom
msuchy glacier-cli pgtune rhn-client-tools spacecmd
mtasaka cairo-dock-plug-ins comix gphotoframe wallpapoz
myoung kernel xen
nando jack-rack muse
nb pgp-tools
nbecker mercurial
ndowens worker
ngompa appliance-tools pagure zypper
nhorman kernel kubernetes
nkondras freeradius
nmav pcsc-lite
nonamedotc bleachbit
notting offlineimap
nphilipp gimp system-config-users
nsantos qpid-cpp
nushio rabbitvcs
nyoxi ovirt-guest-agent
oget muse
ohaessler cherrytree
okeeble dmlite dynafed lcgdm
orion Mayavi TeXmacs cobbler pygtkglext
orphan metamorphose2 ntop rpm-ostree-toolbox rubygem-geoip
pabelanger diskimage-builder
packaging-team createrepo python-urlgrabber yum yum-utils
pali cherokee
pbrady childsplay
pbrobinson dracut-modules-olpc kernel-tools olpc-contents olpc-netutils
olpc-os-builder olpc-switch-desktop olpc-update olpc-utils sugar-abacus
sugar-browse sugar-calculator sugar-chat sugar-clock sugar-connect
sugar-datastore sugar-distance sugar-finance sugar-flipsticks
sugar-getiabooks sugar-imageviewer sugar-implode sugar-infoslicer
sugar-jukebox sugar-labyrinth sugar-maze sugar-memorize sugar-paint
sugar-physics sugar-pippy sugar-record sugar-speak sugar-stopwatch
sugar-terminal sugar-view-slides sugar-write sugar-xoirc sugar-xomail
pemensik bro dnsperf
peter b43-tools bios_extract opensips
pfrields drupal7
pghmcfc libglade
pholasek libhugetlbfs libpagemap
phracek gimp meta-test-family
pingou metamorphose2 pagure
pjp python-grapefruit
pmackinn percona-xtrabackup
pnemade wordxtr
potty nested
praiskup vim-syntastic
pranvk gnome-photos
psklenar proxyfuzz
psss did python-nitrate
pstodulk mercurial
puiterwijk koji mash mediawiki
pviktori python2-django1.11
pvrabec ntop
pwalter autodownloader rabbitvcs revelation
pwouters dnsperf hash-slinger libreswan openpgpkey-milter
quintela kernel
rafalzaq wklej
ralph python-fmn-lib python-tw2-core
ramkrsna gdeploy
rdieter kig lyx pulseaudio pykde4 pyside-tools
rebus openvas-manager python-impacket python-volatility
red petit
rhughes GConf2 gtk2 pygobject2
rickardlindberg timeline
rjones mingw-gtk2
rkuska python-assertEquals python-squaremap
rmattes player python-gencpp python-genlisp python-genpy vdrift
robyduck mk-files wifi-radar
rocha dmlite lcgdm nagios-plugins-lcgdm
roma fmtools
rombobeorn aws
ron samtools
roshansingh gscribble
rrankin sdcc
rrelyea pcsc-lite
rstrode GConf2 gtk2 pygobject2
runcom docker docker-latest
russellb asterisk
s4504kr pgp-tools
sac gdeploy
sailer mingw-gtk2 octave-miscellaneous vfrnav
sandeen blktrace kernel seekwatcher
satyak transmission-remote-cli
sayanchowdhury python-fmn-lib
sbergmann clang
sdake os-apply-config
sdz sugar-datastore sugar-imageviewer sugar-jukebox
sugar-labyrinth sugar-paint sugar-physics sugar-read sugar-turtleart
sugar-typing-turtle sugar-visualmatch
sebelk dtrx
senderek cryptobone
sergiomb childsplay subdownloader
sgros openvas-manager
shenson cobbler
siddharths clang
simonm fts-monitoring fts-rest nagios-plugins-fts
siwinski drupal7
sjodogne orthanc
skottler ntop
slagle diskimage-builder os-apply-config
slankes ntop openlayers
slavazanko mc
smani mingw-qt5-qtbase
snavin sugar-castle sugar-deducto sugar-kuku sugar-srilanka
sugar-starchart
sophiekovalevsky geda-gaf
spot R-nws chromium texlive texlive-base winpdb
spstarr pulseaudio-equalizer
ssp GConf2 gtk2 pygobject2
stefan synopsis
steved kernel nfsometer
stevetraylen condor ginfo xemacs-packages-extra
strigazi kubernetes
suchakra lttng-ust vim-latex
sundaram gif2png python-grapefruit
suraia dput-ng
susmit gnumed-server
tadej PyQwt
tbielawa python-taboot
tbreeds garmin-sync
tdawson rubygem-mizuho
terjeros mathomatic recoll
terminalmage python-halite
teuf offlineimap
than kig pykde4 pyside-tools texlive
thl kcbench-data
thm monotone
thofmann python-gencpp python-genlisp python-genpy
thozza dnsperf
timn player
tkasparek rhn-client-tools spacecmd
tomeu sugar-datastore
tommi pynag
tomspur votca-csg
tpopela chromium
tremble TeXmacs
trepik cassandra
tstclair condor kubernetes
tstellar clang
ttheisen condor
ttorling player
tuxbrewr sugar-calculator sugar-chat sugar-clock sugar-connect
sugar-distance sugar-finance sugar-flipsticks sugar-getiabooks
sugar-imageviewer sugar-implode sugar-infoslicer sugar-log sugar-maze
sugar-memorize sugar-pippy sugar-read sugar-record sugar-speak
sugar-stopwatch sugar-terminal sugar-view-slides sugar-write sugar-xoirc
twaugh expendable international-time
twoerner system-config-firewall
uggla python-Pyped
valtri condor
vbatts kubernetes
vcrhonek yawn
vda mc
verdurin samtools
vhumpa dogtail
vmukhame createrepo python-urlgrabber yum yum-utils
volter cptutils qgis
wakko666 python-postman
walters GConf2 pygobject2 rpm-ostree-toolbox
wcohen sediment
willb thrift
williamjmorenor dreampie
wolfy cfv clac
wtaymans pulseaudio
xavierb openalchemist openvas-manager
yaderv dracut-modules-olpc icaro
zultron python-pivy
--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok
5 years, 7 months
Re: Your package will fail to build due to ambiguous Python shebang
by Miro Hrončok
On 10.9.2018 14:47, Jonathan Wakely wrote:
> On 10/09/18 13:21 +0200, Miro Hrončok wrote:
>> Hi, according to my query, latest build of your package failed the
>> Taskotron check that checks if the brp-magle-sehbang script mangled
>> the shebangs from python to python2.
>>
>> See something like this in the build.log:
>>
>> *** WARNING: mangling shebang in ... from #!/usr/bin/env python to
>> #!/usr/bin/python2. This will become an ERROR, fix it manually!
>>
>> This will soon become an error in F30 as promised 2 releases ago.
>>
>> https://fedoraproject.org/wiki/Changes/Make_ambiguous_python_shebangs_error
>>
>>
>> The motivation is to not drag dependency on python2 when it is not
>> needed. If you are hit by this error, you should check whether the
>> executable Python file with the Python shebang is actually needed in
>> your package. If it is needed, fix the shebang manually to python3 or
>> python2 explicitly.
>>
>> Here's how:
>>
>> https://fedoraproject.org/wiki/Changes/Make_ambiguous_python_shebangs_err...
>>
>> boost denisarnaud jwakely
>
> Was your query against the build.log of the current rawhide build, or
> by building the latest spec in rawhide?
Current rawhide build (I queried the taskotron results).
--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok
5 years, 7 months
Re: Fedora 30 Self-Contained Change proposal: Make ambiguous python
shebangs error
by Petr Viktorin
On 08/31/18 13:41, Miro Hrončok wrote:
> On 31.8.2018 13:30, Miro Hrončok wrote:
>> On 31.8.2018 09:05, Igor Gnatenko wrote:
>>> On Wed, Aug 22, 2018 at 10:02 PM Ben Cotton <bcotton(a)redhat.com
>>> <mailto:bcotton@redhat.com>> wrote:
>>>
>>> https://fedoraproject.org/wiki/Changes/Make_ambiguous_python_shebangs_error
>>>
>>>
>>> == Summary ==
>>> The <code>/usr/lib/rpm/redhat/brp-mangle-shebangs</code> buildroot
>>> policy script will be changed to make the build fail when it sees an
>>> ambiguous python shebang, such as <code>#!/usr/bin/python</code> or
>>> <code>#!/usr/bin/env python</code>. (The script has been warning in
>>> these cases for 2 Fedora releases already, saying ''This will become
>>> an ERROR''.)
>>>
>>>
>>> Why can't we add something like
>>> `MANGLE_UNVERSIONED_PYTHON_TO=%{__python3}`?
>>
>>
>> What about the following:
>>
>> If %_mangle_python_shebnags_to is set, the script will mangle to that
>> (unless it's unversioned python again or otherwise invalid).
>>
>> If %_mangle_python_shebnags_to is not set (the default), the script
>> will error (as currently proposed).
Hmm... Given that upstream PEP 394 allows unversioned "python" for
py2/py3 straddling code, maybe the name could be even shorter?
Maybe what we need is just a way to say the package(r) is aware of
python3 and the latest (as of now) upstream recommendations. With that
info, mangling "/usr/bin/env python" to "/usr/bin/python3" is the right
thing to do.
> Probably %_mangle_unversioned_python_shebnags_to becasue that's the only
^^
BTW, if you copy/paste this, be aware there^^ is a typo :)
> thing that would be changed.
5 years, 7 months
