This bug was fixed in the package apport - 2.20.11-0ubuntu34
---------------
apport (2.20.11-0ubuntu34) groovy; urgency=medium
* apport_python_hook.py: if python apt modules are not built for the python
version then do capture the crash. (LP: #1774843)
-- Brian Murray <[email protected]> Wed, 13 May 2020 16:17:11 -0700
** Changed in: apport (Ubuntu)
Status: In Progress => Fix Released
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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:
In Progress
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:
In Progress
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:
Invalid
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]
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.
[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'.
[NOTE]
It isn't necessary to fix this in Ubuntu 20.04 LTS, as there is only
python3.8 available, so I haven't.
[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'
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