[Python-modules-team] Bug#851900: python3-sleekxmpp: Fails to connect to servers that only support TLS 1.1 or TLS 1.2

[Jan Gerber]

Package: python3-sleekxmpp
Version: 1.3.1-5
Severity: important

sleekxmpp currently fails to connect to servers that use TLS 1.1 or
later.

-- System Information:
Debian Release: 9.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.8.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python3-sleekxmpp depends on:
ii  python3-dnspython       1.15.0-1
ii  python3-pyasn1          0.1.9-2
ii  python3-pyasn1-modules  0.0.7-0.1
pn  python3:any             <none>

Versions of packages python3-sleekxmpp recommends:
ii  python3-dateutil  2.5.3-2
ii  python3-gnupg     0.3.9-1
ii  python3-socks     1.6.5-1

python3-sleekxmpp suggests no packages.

-- no debconf information