[Bug 1935783] Re: package python3-cryptography 1.2.3-1ubuntu0.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Bryce Harrington]

This type of error typically occurs because the cached .pyc files are
out of date for some reason.  (C.f. https://www.py4u.net/discuss/17141,
https://stackoverflow.com/questions/30861493/how-to-fix-python-
valueerrorbad-marshal-data)

This specific issue is occurring not in python-cryptography itself, but
rather in the /usr/bin/py3compile call when its trying to import
debpython.  In other words, something's inconsistent with your system's
cached python code.  It sounds like perhaps force reinstalling
python3-minimal might be worth trying.

** Package changed: python-cryptography (Ubuntu) => python3-defaults
(Ubuntu)

-- 
You received this bug notification because you are a member of Ubuntu
OpenStack, which is subscribed to python-cryptography in Ubuntu.
https://bugs.launchpad.net/bugs/1935783

Title:
  package python3-cryptography 1.2.3-1ubuntu0.3 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in python3-defaults package in Ubuntu:
  New

Bug description:
  would not install updates

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: python3-cryptography 1.2.3-1ubuntu0.3
  ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17
  Uname: Linux 4.10.0-28-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.30
  Architecture: amd64
  Date: Sun Jul 11 15:16:59 2021
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2021-07-11 (0 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.7
   apt  1.2.35
  SourcePackage: python-cryptography
  Title: package python3-cryptography 1.2.3-1ubuntu0.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

  package:python3-cryptography:1.2.3-1ubuntu0.3
  Setting up python3-cryptography (1.2.3-1ubuntu0.3) ...
  Traceback (most recent call last):
    File "/usr/bin/py3compile", line 36, in <module>
      from debpython import files as dpf, PUBLIC_DIR_RE, memoize
    File "<frozen importlib._bootstrap>", line 969, in _find_and_load
    File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
    File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
    File "<frozen importlib._bootstrap_external>", line 661, in exec_module
    File "<frozen importlib._bootstrap_external>", line 765, in get_code
    File "<frozen importlib._bootstrap_external>", line 476, in _compile_bytecode
  ValueError: bad marshal data (unknown type code)
  dpkg: error processing package python3-cryptography (--configure):
   subprocess installed post-installation script returned error exit status 1

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/python3-defaults/+bug/1935783/+subscriptions