** Also affects: python-apt (Ubuntu Focal)
Importance: Undecided
Status: Invalid
** Also affects: apport (Ubuntu Focal)
Importance: Medium
Status: Triaged
** Tags removed: rls-ff-incoming
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https://bugs.launchpad.net/bugs/1774843
Title:
apport python exception handler messes up python3.7
Status in Apport:
New
Status in apport package in Ubuntu:
Triaged
Status in python-apt package in Ubuntu:
Invalid
Status in apport source package in Focal:
Triaged
Status in python-apt source package in Focal:
Invalid
Bug 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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