Package: python3-tornado
Version: 5.0.0-1
Severity: normal
Dear Maintainer,
I'm using python3-tornado indirectly with IPython. With the update to
python3-tornado 5.0.0-1 this is broken. The testcase to reproduce this is
simple:
import IPython
IPython.embed_kernel()
With the new version this results in:
Traceback (most recent call last):
File "./test.py", line 3, in <module>
IPython.embed_kernel()
File "/usr/lib/python3/dist-packages/IPython/__init__.py", line 91, in
embed_kernel
real_embed_kernel(module=module, local_ns=local_ns, **kwargs)
File "/usr/lib/python3/dist-packages/ipykernel/embed.py", line 38, in
embed_kernel
app.initialize([])
File "<decorator-gen-121>", line 2, in initialize
File "/usr/lib/python3/dist-packages/traitlets/config/application.py", line
87, in catch_config_error
return method(app, *args, **kwargs)
File "/usr/lib/python3/dist-packages/ipykernel/kernelapp.py", line 452, in
initialize
zmq_ioloop.install()
File "/usr/lib/python3/dist-packages/zmq/eventloop/ioloop.py", line 210, in
install
assert (not ioloop.IOLoop.initialized()) or \
AttributeError: type object 'IOLoop' has no attribute 'initialized'
It seems to me that the python3-tornado API changed in version 5.x and
python3-zmq does not support this. I'm using python3-zmq 16.0.2-2+b1 and
python3-ipykernel 4.8.2-2 here.
Downgrading python3-tornado to 4.5.3-1 'fixes' the problem for me.
-- System Information:
Debian Release: buster/sid
APT prefers experimental
APT policy: (900, 'experimental'), (900, 'unstable'), (600, 'testing'), (550,
'stable'), (500, 'unstable-debug'), (500, 'testing-debug')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.15.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8),
LANGUAGE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages python3-tornado depends on:
ii ca-certificates 20170717
ii libc6 2.27-2
ii python3 3.6.4-1
python3-tornado recommends no packages.
Versions of packages python3-tornado suggests:
pn python-tornado-doc <none>
ii python3-pycurl 7.43.0.1-0.2
pn python3-twisted <none>
-- no debconf information
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