Bug#893783: spyder3: does not start even after --reset

[Nicola Manca]

Package: spyder3
Version: 3.2.6+dfsg1-2
Severity: grave
Justification: renders package unusable

Dear Maintainer,

   * What led up to the situation?

        I tried to start spyder3 in buster but it does not run. I've tried both
after the --reset flag and after deleting all the configuration files form my
home folder.

here the output I get:

Icon theme "elementary" not found.
Icon theme "ubuntu-mono-dark" not found.
Icon theme "Mint-X" not found.
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/spyder/app/mainwindow.py", line 3126, in
main
    mainwindow = run_spyder(app, options, args)
  File "/usr/lib/python3/dist-packages/spyder/app/mainwindow.py", line 3023, in
run_spyder
    main.setup()
  File "/usr/lib/python3/dist-packages/spyder/app/mainwindow.py", line 1182, in
setup
    self.setup_layout(default=False)
  File "/usr/lib/python3/dist-packages/spyder/app/mainwindow.py", line 1452, in
setup_layout
    self.setup_default_layouts('default', settings)
  File "/usr/lib/python3/dist-packages/spyder/app/mainwindow.py", line 1628, in
setup_default_layouts
    widget.toggle_view(True)
  File "/usr/lib/python3/dist-packages/spyder/plugins/ipythonconsole.py", line
725, in toggle_view
    self.create_new_client(give_focus=False)
  File "/usr/lib/python3/dist-packages/spyder/plugins/ipythonconsole.py", line
1033, in create_new_client
    self.connect_client_to_kernel(client)
  File "/usr/lib/python3/dist-packages/spyder/plugins/ipythonconsole.py", line
1068, in connect_client_to_kernel
    kc.start_channels(shell=True, iopub=True)
  File "/usr/lib/python3/dist-packages/qtconsole/kernel_mixins.py", line 43, in
start_channels
    super(QtKernelClientMixin, self).start_channels(*args, **kw)
  File "/usr/lib/python3/dist-packages/jupyter_client/threaded.py", line 212,
in start_channels
    self.shell_channel._inspect = self._check_kernel_info_reply
  File "/usr/lib/python3/dist-packages/jupyter_client/client.py", line 143, in
shell_channel
    socket, self.session, self.ioloop
  File "/usr/lib/python3/dist-packages/jupyter_client/threaded.py", line 205,
in ioloop
    self._ioloop = ioloop.IOLoop()
  File "/usr/lib/python3/dist-packages/tornado/util.py", line 312, in __new__
    instance.initialize(*args, **init_kwargs)
  File "/usr/lib/python3/dist-packages/zmq/eventloop/ioloop.py", line 139, in
initialize
    super(ZMQIOLoop, self).initialize(impl=impl, **kwargs)
  File "/usr/lib/python3/dist-packages/tornado/ioloop.py", line 845, in
initialize
    super(PollIOLoop, self).initialize(**kwargs)
  File "/usr/lib/python3/dist-packages/tornado/ioloop.py", line 357, in
initialize
    self.make_current()
  File "/usr/lib/python3/dist-packages/tornado/ioloop.py", line 315, in
make_current
    assert asyncio is None
AssertionError



-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (990, 'testing'), (900, 'stable'), (500, 'stable-updates')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.14.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_GB.utf8), LANGUAGE=en_GB:en (charmap=UTF-8) (ignored: LC_ALL set to en_GB.utf8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages spyder3 depends on:
ii  python3         3.6.4-1
ii  python3-spyder  3.2.6+dfsg1-2
ii  python3.6       3.6.5~rc1-1

spyder3 recommends no packages.

spyder3 suggests no packages.

Versions of packages python3-spyder depends on:
ii  libjs-jquery         3.2.1-1
ii  libjs-mathjax        2.7.3+dfsg-1
ii  pylint3              1.8.1-1
ii  python3              3.6.4-1
ii  python3-chardet      3.0.4-1
ii  python3-cloudpickle  0.5.2-2
ii  python3-jedi         0.11.1-1
ii  python3-nbconvert    5.3.1-1
ii  python3-numpydoc     0.7.0-1
ii  python3-pickleshare  0.7.4-2
ii  python3-psutil       5.4.2-1
ii  python3-pycodestyle  2.3.1-2
ii  python3-pyflakes     1.6.0-1
ii  python3-pygments     2.2.0+dfsg-1
ii  python3-qtawesome    0.4.4+ds1-1
ii  python3-qtconsole    4.3.1-1
ii  python3-qtpy         1.3.1-1
ii  python3-rope         0.10.5-2
ii  python3-sphinx       1.6.7-1
ii  python3-zmq          16.0.2-2+b1
ii  spyder-common        3.2.6+dfsg1-2

Versions of packages python3-spyder suggests:
pn  cython3             <none>
ii  python3-matplotlib  2.1.1-2
ii  python3-numpy       1:1.13.3-2
pn  python3-pandas      <none>
ii  python3-pil         4.3.0-2
ii  python3-scipy       0.19.1-2
pn  python3-sympy       <none>
pn  spyder-doc          <none>

Versions of packages python3-pyqt5 depends on:
ii  libc6                            2.27-2
ii  libgcc1                          1:8-20180312-2
ii  libpython3.6                     3.6.5~rc1-1
ii  libqt5core5a [qtbase-abi-5-9-2]  5.9.2+dfsg-12
ii  libqt5dbus5                      5.9.2+dfsg-12
ii  libqt5designer5                  5.9.2-6
ii  libqt5gui5                       5.9.2+dfsg-12
ii  libqt5help5                      5.9.2-6
ii  libqt5network5                   5.9.2+dfsg-12
ii  libqt5printsupport5              5.9.2+dfsg-12
ii  libqt5test5                      5.9.2+dfsg-12
ii  libqt5widgets5                   5.9.2+dfsg-12
ii  libqt5xml5                       5.9.2+dfsg-12
ii  libstdc++6                       8-20180312-2
ii  python3                          3.6.4-1
ii  python3-sip [sip-py3api-12.3]    4.19.8+dfsg-1

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

-- no debconf information