[Pkg-anonymity-tools] Bug#794847: torbrowser-launcher: update-on-launch failure: contextFactory must implement IPolicyForHTTPS

[Arian Sanusi]

Package: torbrowser-launcher
Version: 0.2.0-1
Severity: important

torbrowser-launcher fails with stacktrace below - as with yesterdays bug the actual tbb is unaffected

$ torbrowser-launcher 
Tor Browser Launcher
By Micah Lee, licensed under MIT
version 0.2.0
https://github.com/micahflee/torbrowser-launcher
Updating over Tor
Checked for update within 24 hours, skipping
TBB is out of date, attempting to upgrade to 4.5.3
/usr/lib/python2.7/dist-packages/torbrowser_launcher/launcher.py:281: GtkWarning: Error parsing gtk-icon-sizes string:
	'gtk-menu:24,24'
  self.window.show()
Downloading https://dist.torproject.org/torbrowser/4.5.3/sha256sums.txt
Traceback (most recent call last):
  File "/usr/bin/torbrowser-launcher", line 30, in <module>
    torbrowser_launcher.main()
  File "/usr/lib/python2.7/dist-packages/torbrowser_launcher/__init__.py", line 69, in main
    app = Launcher(common, url_list)
  File "/usr/lib/python2.7/dist-packages/torbrowser_launcher/launcher.py", line 130, in __init__
    self.build_ui()
  File "/usr/lib/python2.7/dist-packages/torbrowser_launcher/launcher.py", line 284, in build_ui
    self.start(None)
  File "/usr/lib/python2.7/dist-packages/torbrowser_launcher/launcher.py", line 293, in start
    self.run_task()
  File "/usr/lib/python2.7/dist-packages/torbrowser_launcher/launcher.py", line 318, in run_task
    self.download('signature', self.common.paths['sha256_url'], self.common.paths['sha256_file'])
  File "/usr/lib/python2.7/dist-packages/torbrowser_launcher/launcher.py", line 454, in download
    agent = SOCKS5Agent(reactor, VerifyTorProjectCert(self.common.paths['torproject_pem']), proxyEndpoint=torEndpoint)
  File "/usr/lib/python2.7/dist-packages/txsocksx/http.py", line 58, in __init__
    super(_SOCKSAgent, self).__init__(*a, **kw)
  File "/usr/lib/python2.7/dist-packages/txsocksx/http.py", line 37, in __init__
    'contextFactory must implement IPolicyForHTTPS')
NotImplementedError: contextFactory must implement IPolicyForHTTPS

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (1001, 'testing'), (550, 'unstable'), (200, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.0.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages torbrowser-launcher depends on:
ii  gnupg            1.4.19-3
ii  python           2.7.9-1
ii  python-gtk2      2.24.0-4
ii  python-lzma      0.5.3-2+b1
ii  python-parsley   1.2-1
ii  python-psutil    2.1.1-1+b1
ii  python-twisted   15.2.1-1
ii  python-txsocksx  1.15.0.2-1
ii  tor              0.2.6.10-1
ii  wmctrl           1.07-7

torbrowser-launcher recommends no packages.

Versions of packages torbrowser-launcher suggests:
pn  apparmor       <none>
ii  python-pygame  1.9.1release+dfsg-10+b1

-- no debconf information