Yet Another Jedi Exception : )

[liavkoren]

In [1]: import numpy as np
In [2]: a = np.array([1])
In [3]: b = np.array([2])
In [4]: (a - b > 0).Exception in thread Thread-457:

Traceback (most recent call last):
  File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/threading.py", line 916, in _bootstrap_inner
    self.run()
  File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/threading.py", line 864, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/prompt_toolkit/interface.py", line 860, in run                              [F2] Menu - CPython 3.6.0
    completions = list(buffer.completer.get_completions(document, complete_event))
  File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/prompt_toolkit/contrib/regular_languages/completion.py", line 37, in get_completions
    self._get_completions_for_match(m, complete_event))
  File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/prompt_toolkit/contrib/regular_languages/completion.py", line 81, in _remove_duplicates
    for i in items:
  File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/prompt_toolkit/contrib/regular_languages/completion.py", line 64, in _get_completions_for_match
    for completion in completer.get_completions(document, complete_event):
  File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/ptpython/completer.py", line 127, in get_completions
    completions = script.completions()
  File "/usr/local/lib/python2.7/site-packages/jedi/api/__init__.py", line 188, in completions
    completion_names = get_completions(user_stmt, b)
  File "/usr/local/lib/python2.7/site-packages/jedi/api/__init__.py", line 174, in get_completions
    completion_names += self._simple_complete(path, dot, like)
  File "/usr/local/lib/python2.7/site-packages/jedi/api/__init__.py", line 604, in _simple_complete
    return super(Interpreter, self)._simple_complete(path, dot, like)
  File "/usr/local/lib/python2.7/site-packages/jedi/api/__init__.py", line 250, in _simple_complete
    scopes = list(self._prepare_goto(path, True))
  File "/usr/local/lib/python2.7/site-packages/jedi/api/__init__.py", line 294, in _prepare_goto
    scopes = self._evaluator.eval_element(eval_stmt)
  File "/usr/local/lib/python2.7/site-packages/jedi/evaluate/cache.py", line 41, in wrapper
    rv = function(obj, *args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/jedi/evaluate/__init__.py", line 169, in eval_element
    return self._eval_atom(element)
  File "/usr/local/lib/python2.7/site-packages/jedi/evaluate/__init__.py", line 239, in _eval_atom
    return self.eval_element(c[1])
  File "/usr/local/lib/python2.7/site-packages/jedi/evaluate/cache.py", line 41, in wrapper
    rv = function(obj, *args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/jedi/evaluate/__init__.py", line 212, in eval_element
    return precedence.calculate_children(self, element.children)
  File "/usr/local/lib/python2.7/site-packages/jedi/evaluate/precedence.py", line 61, in calculate_children
    evaluator.eval_element(right))
  File "/usr/local/lib/python2.7/site-packages/jedi/evaluate/precedence.py", line 81, in calculate
    result += _element_calculate(evaluator, left, operator, right)
  File "/usr/local/lib/python2.7/site-packages/jedi/evaluate/precedence.py", line 156, in _element_calculate
    return [keyword_from_value(operation(left, right))]
  File "/usr/local/lib/python2.7/site-packages/jedi/evaluate/compiled/__init__.py", line 495, in keyword_from_value
    raise NotImplementedError
NotImplementedError

Note: the exception happens immediately on typing the period in (a - b > 0).

numpy==1.10.4
prompt-toolkit==1.0.15
jedi==0.11.0

I deeply love ptipython (it's my default python repl) and, you know, god[s]/time-management willing, I'm happy to try and help.

It's not super rare for me to run into Jedi exceptions. Overall, those aren't actually a big deal, but what is kind of a drag is then not having access to autocomplete for the rest of the life-span of the parent ptpython session. I'm assuming Jedi is being run in a child thread, and when it hits an unhandled exception, it takes autocomplete out. How much of a PITA would it be for a new Jedi to be created when that happens?

[jonathanslenders]

Hi @liavkoren
Thanks for opening this issue!
The Jedi completion runs indeed in another thread.
Would the following fix work: #224 ?

It's not the cleanest solution, but otherwise I have to keep adding exceptions for everything that Jedi will throw.

[liavkoren]

Oh, just saw this. Would you like me to pull the commit and check it locally?

[liavkoren]

Okay, I'm tots confused. I cloned the repo and pip installed -e, but I can't reproduce the jedi error even on master. Numpy, prompt-toolkit and jedi versions all match.

[jonathanslenders]

Ok. No problem. I'll probably merge it anyway. These Jedi errors are pretty annoying, and right now, I don't have a good way to log what's going wrong without disturbing the end user.

[liavkoren]

Thanks!