[Python-modules-team] Bug#834875: regression: qsettings can no longer save binary strings

[Salvo Tomaselli]

Package: python3-pyqt5
Version: 5.7+dfsg-1
Severity: normal
Tags: upstream

Dear Maintainer,

in relational, I store the session as a binary string generated with the pickle
module and save it using QSettings.

now the functionality is broken, without changing the code in relational, so
it is a regression in Qt or PyQt.

I don't know how to try to replicate the issue in C++, since binary strings are
a python thing, and I couldn't find how to report bugs to riverbanks, so I am
opening this bug in hope that you know best how to proceed about this.

Best

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.7.0d (SMP w/4 CPU cores; PREEMPT)
Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python3-pyqt5 depends on:
ii  libc6                            2.23-4
ii  libgcc1                          1:6.1.1-12
ii  libpython3.5                     3.5.2-3
ii  libqt5core5a [qtbase-abi-5-6-1]  5.6.1+dfsg-3+b1
ii  libqt5dbus5                      5.6.1+dfsg-3+b1
ii  libqt5designer5                  5.6.1-2
ii  libqt5gui5                       5.6.1+dfsg-3+b1
ii  libqt5help5                      5.6.1-2
ii  libqt5network5                   5.6.1+dfsg-3+b1
ii  libqt5printsupport5              5.6.1+dfsg-3+b1
ii  libqt5test5                      5.6.1+dfsg-3+b1
ii  libqt5widgets5                   5.6.1+dfsg-3+b1
ii  libqt5xml5                       5.6.1+dfsg-3+b1
ii  libstdc++6                       6.1.1-12
ii  python3                          3.5.1-4
ii  python3-sip [sip-py3api-11.3]    4.18.1+dfsg-1
pn  python3:any                      <none>

python3-pyqt5 recommends no packages.

Versions of packages python3-pyqt5 suggests:
pn  python3-pyqt5-dbg  <none>

-- no debconf information