** Branch linked: lp:~ubuntu-core-dev/ubuntu/focal/apport/ubuntu -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apport in Ubuntu. https://bugs.launchpad.net/bugs/1774843
Title: apport python exception for python versions which python-apt is not built on Status in Apport: New Status in apport package in Ubuntu: Fix Released Status in python3.7 package in Ubuntu: Invalid Status in python3.8 package in Ubuntu: Invalid Status in apport source package in Bionic: Fix Released Status in python3.7 source package in Bionic: Won't Fix Status in python3.8 source package in Bionic: Won't Fix Status in apport source package in Eoan: Fix Released Status in python3.7 source package in Eoan: Won't Fix Status in python3.8 source package in Eoan: Won't Fix Status in apport source package in Focal: New Status in python3.7 source package in Focal: Invalid Status in python3.8 source package in Focal: Invalid Bug description: [Impact] apport's python crash handler runs for every installed version of python e.g. on Ubuntu 18.04 LTS it will run for crashes with python3.6 or python3.7 as an interpreter. However, python apt modules are only available for the the supported version of python so the crash handler generates an exception which is annoying. [Test Case for 18.04] 1) Install the non-default version of python3 e.g. python3.7 on Ubuntu 18.04 LTS. 2) Run 'python3.7 -c 'print hello' and observe a Traceback re apt_pkg not being found. With the version of python3-apport from -proposed you'll not receive the Traceback from step # 2. [Test Case for 20.04] 1) Install python3.7 and python3.8 on an Ubuntu 19.10 system 2) Upgrade from 19.10 to 20.04 LTS and keep python3.7 installed 3) Run 'python3.7 -c 'print hello' and observe a Traceback re apt_pkg not being found. With the version of python3-apport from -proposed you'll not receive the Traceback from step # 2 [Regression Potential] Its possible the crash handler change is incorrect so it should be confirmed that we still get python crashes about the system version of python. One way to do this is to run 'apport-cli coreutils < /dev/null'. [Original Description] it seems apport installs an exception hook whenever running python3. This hook is apparently installed for python3.7 too. This exception handler has a dependency on apt_pkg, which is a binary that is not compatible with python3.7 it seems (you can't import it, see below) As a result, whenever I run a python3.7 script and run into an exception (which happens often when writing code), I get an additional exception in the exception handler + a copy of the original exception, so three stacktraces in total. A solution would be to only install the exception hook for the system python i.e. python3.6 $ lsb_release -rd Description: Ubuntu 18.04 LTS Release: 18.04 apport: 2.20.9-0ubuntu7 python-apt: 1.6.0 python3.7: 3.7.0~b3-1 Demo with a trivial error: $ python3 -c 'print hello' File "<string>", line 1 print hello ^ SyntaxError: Missing parentheses in call to 'print'. Did you mean print(hello)? $ python3.7 -c 'print hello' File "<string>", line 1 print hello ^ SyntaxError: Missing parentheses in call to 'print'. Did you mean print(hello)? Error in sys.excepthook: Traceback (most recent call last): File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 63, in apport_excepthook from apport.fileutils import likely_packaged, get_recent_crashes File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module> from apport.report import Report File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module> import apport.fileutils File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module> from apport.packaging_impl import impl as packaging File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 24, in <module> import apt File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in <module> import apt_pkg ModuleNotFoundError: No module named 'apt_pkg' Original exception was: File "<string>", line 1 print hello ^ SyntaxError: Missing parentheses in call to 'print'. Did you mean print(hello)? Python 3.6.5 (default, Apr 1 2018, 05:46:30) [GCC 7.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> sys.excepthook <function apport_excepthook at 0x7fdf2b99a620> >>> import apt_pkg >>> apt_pkg.__file__ '/usr/lib/python3/dist-packages/apt_pkg.cpython-36m-x86_64-linux-gnu.so' >>> Python 3.7.0b3 (default, Mar 30 2018, 04:35:22) [GCC 7.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> sys.excepthook <function apport_excepthook at 0x7f29a6eebea0> >> import apt_pkg Traceback (most recent call last): File "<stdin>", line 1, in <module> ModuleNotFoundError: No module named 'apt_pkg' To manage notifications about this bug go to: https://bugs.launchpad.net/apport/+bug/1774843/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp