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[goutam <goutamkk@xxxxxxxxx>]

hplip is written to suite version py2.6 and py3.X. 
While building the code certain binaries are linked with the default python library. When default python version is changed to higher version, the code needs to be recompiled to link to the python library which is defaulted now.

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https://bugs.launchpad.net/bugs/1530656

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

Status in HPLIP:
  New
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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