python3-qrencode fails with SystemError about PY_SSIZE_T_CLEAN macro

[Arrigo Marchiori]

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

[Arrigo Marchiori (ardovm)]

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

[Ramiro Algozino (algozino)]

Hi Arrigo,

"qrencode" is not provided by QR Tools. It is a different package.

If you want to use QR Tools, you should use something like this:

import qrtools
qr = qrtools.QR("hello world")

Otherwise, please open the issue to the python3-qrencode launchpad instead.

Regards

[Arrigo Marchiori (ardovm)]

Hello Ramiro,

thank you for pointing me in the right direction.

Bug reported here: https://bugs.launchpad.net/ubuntu/+source/python-qrencode/+bug/2056361

Best regards.