[Bug 2056361] [NEW] [SRU] python3-qrencode fails with SystemError about PY_SSIZE_T_CLEAN macro

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Sudip Mukherjee (sudipmuk):

[ Impact ]

python3-qrencode is completely unusable as it will crash with the
following error whenever any user tries to use to generate a QR code:

  File "/usr/lib/python3/dist-packages/qrencode/__init__.py", line 47, in encode
    version, size, data = _encode(data, version, level, hint, True)
SystemError: PY_SSIZE_T_CLEAN macro must be defined for '#' formats


[ Test Plan ]

Add the following content in a python file:


import qrencode

(version, size, im) = qrencode.encode("This is working")

im.show()

execute the python script. With the fixed package it will display the QR
code.

[ Where problems could occur ]

It is only defining 'PY_SSIZE_T_CLEAN' before including Python.h as is
suggested by upstream Python docs. There might be some adverse affect
for this but the package is already unusable.

[ Other Info ]

The same fix from Debian is in Mantic.
Noble is also affected but I can not mark the bug status as confirmed. The NMU fix was lost with the update to 1.2-6. But I have now done a QA upload in Debian with the fix and also added an autopkgtest which has the same python script as the test plan. So, when 1.2-7 syncs, Noble will be fixed.

[ Original Bug Description ]

Python3 module qrencode does not allow generating QR codes using
function encode().

The attached very simple script dies as follows:

$ ./python3-qrencode.py
Traceback (most recent call last):
  File "/home/arrigo/temp/./python3-qrencode.py", line 5, in <module>
    qrencode.encode("Hello world")
  File "/usr/lib/python3/dist-packages/qrencode/__init__.py", line 47, in encode
    version, size, data = _encode(data, version, level, hint, True)
SystemError: PY_SSIZE_T_CLEAN macro must be defined for '#' formats

Package: python3-qrencode version 1.2-5build6, architecture amd64 on
Ubuntu 22.04

** Affects: python-qrencode (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: python-qrencode (Ubuntu Jammy)
     Importance: Undecided
         Status: Confirmed

** Affects: python-qrencode (Debian)
     Importance: Unknown
         Status: Fix Released

-- 
[SRU] python3-qrencode fails with SystemError about PY_SSIZE_T_CLEAN macro
https://bugs.launchpad.net/bugs/2056361
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