[Reproducible-builds] Bug#821777: diffoscope fails with "pkg_resources.DistributionNotFound: python-magic"

Tue Apr 19 08:25:41 UTC 2016

Package: diffoscope
Version: 51
Severity: normal

Hi,

so, I've made a local diffoscope backport, installed it and gave it a
try and this is what I got:

$ diffoscope piuparts_0.70_source.changes piuparts_0.70~bpo8+1_source.changes
Traceback (most recent call last):
  File "/usr/bin/diffoscope", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2876, in <module>
    working_set = WorkingSet._build_master()
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 449, in build_master
    ws.require(__requires__)
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 745, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 639, in resolve
    raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: python-magic

I'd expect this problem would be intercepted and a helpful error message
would be displayed. ATM I'm clueless why diffoscope fails here, is it
because of the distro "jessie-backports" in the 2nd changes file? Or is
it because the 1st changes file is signed, but not the 2nd?

-- System Information:
Debian Release: 8.4

Versions of packages diffoscope depends on:
ii  python3                3.4.2-2
ii  python3-libarchive-c   2.1-3~bpo8+1
ii  python3-magic          1:5.22+15-2+deb8u1
ii  python3-pkg-resources  5.5.1-1
pn  python3:any            <none>

Versions of packages diffoscope recommends:
ii  python3-debian          0.1.27
ii  python3-guestfs         1:1.28.1-1
ii  python3-rpm             4.12.0.1+dfsg1-3~bpo8+1
ii  python3-tlsh            3.4.1+20151014-1~bpo8+1
ii  rpm2cpio                4.12.0.1+dfsg1-3~bpo8+1

-- no debconf information

-- 
cheers,
	Holger
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Hash: SHA512

Format: 1.8
Date: Tue, 08 Mar 2016 13:00:22 +0100
Source: piuparts
Binary: piuparts piuparts-master piuparts-slave piuparts-common
Architecture: source
Version: 0.70
Distribution: unstable
Urgency: medium
Maintainer: piuparts developers team <piuparts-devel at lists.alioth.debian.org>
Changed-By: Holger Levsen <holger at debian.org>
Description:
 piuparts   - .deb package installation, upgrading, and removal testing tool
 piuparts-common - common piuparts components
 piuparts-master - piuparts master components
 piuparts-slave - piuparts slave components
Changes:
 piuparts (0.70) unstable; urgency=medium
 .
   [ Andreas Beckmann ]
   * piuparts.py:
     - Add to ignored_files:
       + /etc/sysctl.d/99-sysctl.conf (dangling symlink to ../sysctl.conf)
       + /var/log/btmp
     - Canonicalize mountpoint inside the chroot to avoid mounting over
       symlinks and possibly outside the chroot.
     - --install-remove-install runs 'apt-get install --reinstall $pkg', too.
   * post_distupgrade_base_cleanup: Remove libprocps3 in stretch.
   * pre_remove_40_find_unowned_lib_links: Handle another mpi alternative.
   * Add bug template for maintainer scripts incorrectly complaining about
     being called with unknown arguments.
 .
   [ Holger Levsen ]
   * conf/distros.conf and instances/piuparts.conf.pejacevic: move squeeze to
     archive.debian.org, stop testing squeeze only suites - but keep testing
     upgrades to wheezy suites.
   * Fix typo in piuparts_slave_join.8.txt, thanks lintian.
Checksums-Sha1:
 dc1a4efeec91b7fd2701ec90debd9756f89e11c5 1980 piuparts_0.70.dsc
 8cf1fa730ec4dba22eca76eaa7dfab04e46853e9 233729 piuparts_0.70.tar.gz
Checksums-Sha256:
 a784dfed6862aba1d0f480bce5b94f4e529ff975698ffef238f3bf784344daff 1980 piuparts_0.70.dsc
 59ba6ec834f5a40d0e1dba5e6e895a93bf4c4acdf3bdea0da0dcf6a0b2402e2d 233729 piuparts_0.70.tar.gz
Files:
 9776a702a049a5591e33988e83fb6ca4 1980 devel extra piuparts_0.70.dsc
 e953b347c40ff9b437455545f26ae7f8 233729 devel extra piuparts_0.70.tar.gz

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Format: 1.8
Date: Tue, 19 Apr 2016 08:52:51 +0200
Source: piuparts
Binary: piuparts piuparts-master piuparts-slave piuparts-common
Architecture: source
Version: 0.70~bpo8+1
Distribution: jessie-backports
Urgency: medium
Maintainer: piuparts developers team <piuparts-devel at lists.alioth.debian.org>
Changed-By: Holger Levsen <holger at debian.org>
Description:
 piuparts   - .deb package installation, upgrading, and removal testing tool
 piuparts-common - common piuparts components
 piuparts-master - piuparts master components
 piuparts-slave - piuparts slave components
Changes:
 piuparts (0.70~bpo8+1) jessie-backports; urgency=medium
 .
   * Rebuild for jessie-backports.
Checksums-Sha1:
 2f1160198935267736d3838c4f4493e34092ff6d 1130 piuparts_0.70~bpo8+1.dsc
 3ad74ffbd04b661f0bedc0c8b10335dc6e7e059b 233970 piuparts_0.70~bpo8+1.tar.gz
Checksums-Sha256:
 85a62af62e627b54689779928dd3ffc147ec4f45dd8f6de0a6cc52643dc4b948 1130 piuparts_0.70~bpo8+1.dsc
 76266a0c011d240c58ead088df111ce7a1c03dad25e03fd9dcfabef29dd21c75 233970 piuparts_0.70~bpo8+1.tar.gz
Files:
 e460ecd7bec70121f15ea3eb8b118978 1130 devel extra piuparts_0.70~bpo8+1.dsc
 6e4d0a9bdcef014bbd11e38bfb4a0976 233970 devel extra piuparts_0.70~bpo8+1.tar.gz
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