Bug#940987: rdetails fails: TypeError: sequence item 0: expected str instance, bytes found

[Felipe Sateler <fsateler@debian.org>]

Package: apt-xapian-index
Version: 0.50
Severity: important

Hi,

Trying to issue axi-cache rdetails fails:

% axi-cache rdetails apt-xapian-index
Traceback (most recent call last):
  File "/usr/bin/axi-cache", line 861, in <module>
    sys.exit(ui.perform())
  File "/usr/bin/axi-cache", line 852, in perform
    return f(self.args)
  File "/usr/bin/axi-cache", line 718, in do_rdetails
    print(name, tag, " ".join(deps))
TypeError: sequence item 0: expected str instance, bytes found


It seems the query is returning bytes instead of strings. Converting
with utf-8 makes it work (but I have no idea if this fix is correct):

deps = map(lambda x: x.decode('utf-8'), db.get_rdeps(name, pfx))

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.2.0-2-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages apt-xapian-index depends on:
ii  python3         3.7.3-1
ii  python3-apt     1.8.4
ii  python3-debian  0.1.36
ii  python3-xapian  1.4.12-2

apt-xapian-index recommends no packages.

Versions of packages apt-xapian-index suggests:
ii  python3-xdg  0.25-5

-- no debconf information