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[Bug 1530656] [NEW] printing will fail with python3.5 set as default

 

Public bug reported:

Setting Python 3.5 as the default for python3 breaks printing over
HPlib.

Steps to reproduce:

sudo -s
cd /usr/bin
rm python3
ln -s python3.5 python3

...

print something using a hplip enabled printer -> printer stopped

rm python3
ln -s python3.4 python3 # this was the default setting after installation

...

printing resumes

I also observed a crash in the HPLip libraries which indicated the cause
being in the hplip package. (this was not reproducable though)

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: hplip 3.15.7-0ubuntu4
ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6
Uname: Linux 4.2.0-22-generic x86_64
NonfreeKernelModules: nvidia wl
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Jan  3 15:30:56 2016
InstallationDate: Installed on 2013-05-17 (960 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64+mac (20130424)
Lpstat: device for HP-Color-LaserJet-CP2025dn: hp:/net/HP_Color_LaserJet_CP2025dn?ip=10.1.0.20
MachineType: Apple Inc. MacBookPro10,1
Papersize: a4
PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/HP-Color-LaserJet-CP2025dn.ppd'] failed with exit code 2: grep: /etc/cups/ppd/HP-Color-LaserJet-CP2025dn.ppd: Permission denied
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-22-generic root=UUID=3679e976-6405-4981-aa99-8c79d15e6aa3 ro quiet splash vt.handoff=7
SourcePackage: hplip
UpgradeStatus: Upgraded to wily on 2015-10-23 (72 days ago)
dmi.bios.date: 12/21/2012
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP101.88Z.00EE.B03.1212211437
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-C3EC7CD22292981F
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro10,1
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-C3EC7CD22292981F
dmi.modalias: dmi:bvnAppleInc.:bvrMBP101.88Z.00EE.B03.1212211437:bd12/21/2012:svnAppleInc.:pnMacBookPro10,1:pvr1.0:rvnAppleInc.:rnMac-C3EC7CD22292981F:rvrMacBookPro10,1:cvnAppleInc.:ct10:cvrMac-C3EC7CD22292981F:
dmi.product.name: MacBookPro10,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

** Affects: hplip (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug wily

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to hplip in Ubuntu.
https://bugs.launchpad.net/bugs/1530656

Title:
  printing will fail with python3.5 set as default

Status in hplip package in Ubuntu:
  New

Bug description:
  Setting Python 3.5 as the default for python3 breaks printing over
  HPlib.

  Steps to reproduce:

  sudo -s
  cd /usr/bin
  rm python3
  ln -s python3.5 python3

  ...

  print something using a hplip enabled printer -> printer stopped

  rm python3
  ln -s python3.4 python3 # this was the default setting after installation

  ...

  printing resumes

  I also observed a crash in the HPLip libraries which indicated the
  cause being in the hplip package. (this was not reproducable though)

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: hplip 3.15.7-0ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6
  Uname: Linux 4.2.0-22-generic x86_64
  NonfreeKernelModules: nvidia wl
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sun Jan  3 15:30:56 2016
  InstallationDate: Installed on 2013-05-17 (960 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64+mac (20130424)
  Lpstat: device for HP-Color-LaserJet-CP2025dn: hp:/net/HP_Color_LaserJet_CP2025dn?ip=10.1.0.20
  MachineType: Apple Inc. MacBookPro10,1
  Papersize: a4
  PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/HP-Color-LaserJet-CP2025dn.ppd'] failed with exit code 2: grep: /etc/cups/ppd/HP-Color-LaserJet-CP2025dn.ppd: Permission denied
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-22-generic root=UUID=3679e976-6405-4981-aa99-8c79d15e6aa3 ro quiet splash vt.handoff=7
  SourcePackage: hplip
  UpgradeStatus: Upgraded to wily on 2015-10-23 (72 days ago)
  dmi.bios.date: 12/21/2012
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP101.88Z.00EE.B03.1212211437
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-C3EC7CD22292981F
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookPro10,1
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-C3EC7CD22292981F
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP101.88Z.00EE.B03.1212211437:bd12/21/2012:svnAppleInc.:pnMacBookPro10,1:pvr1.0:rvnAppleInc.:rnMac-C3EC7CD22292981F:rvrMacBookPro10,1:cvnAppleInc.:ct10:cvrMac-C3EC7CD22292981F:
  dmi.product.name: MacBookPro10,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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