Jedi: Tab completion is broken in IPython

[maxwellmckinnon]

ipython 7.6.1
jedi 0.14.0
python 3.7.3

In [1]: import numpy

In [2]: import IPython

In [3]: ipy = IPython.get_ipython()

In [4]: ipy.Completer.all_completions("numpy.")
Out[4]: []

On jedi 0.13.3, tab completion still doesn't work, but it claims it can generate the completions now.

ipy.Completer.all_completions("numpy.")
Out[4]:
['numpy.abs',
 'numpy.absolute',
 'numpy.absolute_import',
 'numpy.add',
 'numpy.add_docstring',
# ...

[davidhalter]

Proably related to #1370, fix coming soon.

[maxwellmckinnon]

Downgrading to 0.13.3, it actually does work, it's just very very slow. pip uninstall jedi works for now to get standard (non-awesome) autocompletion.

[maxwellmckinnon]

It is also a problem in Jupyter, no autocomplete there on 0.14.0.

This thread describing the issue on the IPython side claims using jedi + python repl works just fine, so it seems it's an IPython issue?

https://github.com/ipython/ipython/issues/11798

[davidhalter]

It seems to work for me, but maybe numpy is installed in a different way for you and the bug I quoted above is still the issue.

[bhodorog]

I'm sorry for confusing everyone with my post on ipython/ipython#11798 but indeed the problem seems to be in jedi and it seems to be related to #1370 as correctly identified by @davidhalter.

The reason for my confusion was a virtualenv configuration error on my system, which caused python repl to use jedi==0.12, despite the fact that I was having activated a virtualenv with jedi==0.14.1.

The steps to reproduce the problem is:

virtualenv --python python3 jedi-completion-bug
source jedi-completion-bug/bin/activate
pip install jedi
export PYTHONSTARTUP=$(python -m jedi repl)
python
>> import sys
>> sys.<tab>

The above sequence triggers an AssertionError: <MixedObject: <module 'sys' (built-in)>> at:
_jedi/evaluate/gradual/conversion.py", line 43, in _infer_from_stub_

I guess now we'll wait for the fix.

[davidhalter]

I just merged #1370, so this should be fixed. Wait for the next release or test it now. I will of course reopen if it's still an issue with the next release.

[minrk]

Just chiming in here from the IPython side to confirm that this issue is indeed fixed in master (3a9dc0ca2e2f9fd35b3a30a1cfb1653cb600bb4c)

[KOLANICH]

Just installed the latetst jedi (499408657bd350662a9a779d8bc6643b1acb6523) and ipython
(1879ed27bb0ec3be5fee499ac177ad14a9ef7cfd). This issue isn't fixed.

Python 3.7.3 (default, Mar 28 2019, 10:38:38) [MSC v.1915 32 bit (Intel)]

[davidhalter]

Strange. Also numpy.? I doubt that it's not fixed, because for me it's working now, when it wasn't before this patch.

[KOLANICH]

Also numpy.?

Yes.

[KOLANICH]

I doubt that it's not fixed, because for me it's working now, when it wasn't before this patch.

I have checked on an Ubuntu machine. It doesn't work there too. I have also upgraded parso just to be sure that it is not because of it.

[davidhalter]

Are you sure that you are using the right Jedi version? Also if you actually want to help me debug this, could you just run it like this:

>>> import jedi, numpy, sys
>>> sys.version_info
sys.version_info(major=3, minor=5, micro=2, releaselevel='final', serial=0)
>>> jedi.__version__
'0.14.1'
>>> jedi.Interpreter('numpy.', [globals()]).completions()
[<Completion...]

? I want to see a traceback. Currently I have no idea how to reproduce your case.

[davidhalter]

Fixed something else that might be related to this. Can you retry? You need to do it with master.

[KOLANICH]

Now works, thank you!

[maxwellmckinnon]

Confirmed working in jedi 0.15.1. ipython 7.7.0 python 3.7.4
Thanks so much!

[maxwellmckinnon]

This issue does not repro, but a similar thing is broken in https://github.com/davidhalter/jedi/issues/1415

jedi==0.15.1
ipython==7.8.0
Python 3.7.4

In [1]: import IPython
In [2]: ipy = IPython.get_ipython()
In [3]: from unittest import mock
In [4]: ipy.Completer.all_completions("mock.")
Out[4]: []

In [5]: ipy.Completer.all_completions("mock.p")
Out[5]: ['mock.partial', 'mock.patch', 'mock.pprint']

[davidhalter]

@maxwellmckinnon Please open a new issue.

[ArrowRaider]

Stock download+install of Anaconda3 has broken autocomplete in Jupyter. Do I report the issue here since autocomplete works if I run this:
%config IPCompleter.use_jedi = False

[davidhalter]

Not really. It might have to do something with the versions. If it worked before, anaconda3 might you a different version than jupyter. It might be worth isolating that stuff with virtualenvs.

[LeninGF]

I run into this problem. It seems that the problem is with the parse file. In fact, I applied conda update --all -c conda-forge. This seems to have fixed the problem by changing the version of parso; which was downgraded

parso 0.8.0-py_0 --> 0.5.2-py_0

So. I acknowledge that the problem exist and it was activated when I updated conda version to latest 4.8.4. Update caused the problem

[davidhalter]

See also https://github.com/conda-forge/conda-forge-repodata-patches-feedstock/issues/81#event-3664361521 (It's a conda bug).

[LeninGF]

Thanks for sharing your knowledge
Atentamente,

Lenin Falconí Estrada

El lun., 24 ago. 2020 a las 6:05, Dave Halter ([e-mail])
escribió:

See also conda-forge/conda-forge-repodata-patches-feedstock#81 (comment)
https://github.com/conda-forge/conda-forge-repodata-patches-feedstock/issues/81#event-3664361521
(It's a conda bug).

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
https://github.com/davidhalter/jedi/issues/1373#issuecomment-679061801,
or unsubscribe
https://github.com/notifications/unsubscribe-auth/AH7TWKI4C7HO7V5T7BTAV3TSCJCRLANCNFSM4IFEUZGA
.

[arjunsohanlal]

Just came over to this thread with the same issue, and I'd noticed that an old conda install seemed to have the right package versions that allowed for stable tab-autocomplete. Here are the versions that seem to work for me right now (running Python 3.8.7):

backcall==0.1.0
Click==7.0
colorama==0.4.3
decorator==4.4.1
ipython==7.12.0
ipython-genutils==0.2.0
itsdangerous==1.1.0
jedi==0.14.0
Jinja2==2.11.1
MarkupSafe==1.1.1
parso==0.5.2
pickleshare==0.7.5
prompt-toolkit==3.0.3
Pygments==2.5.2
six==1.14.0
traitlets==4.3.3
wcwidth==0.1.8
Werkzeug==1.0.0

I'm afraid that I haven't been able to narrow down further into which exact packages were the troublemakers, but I hope this works out for you.

[davidhalter]

Remember to always read closed issues: https://github.com/davidhalter/jedi/issues/1714