Internal Python Language Server error

[N22YF]

Description

What steps will reproduce the problem?

Just editing code - didn't do anything unusual. ??

Traceback

  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls_jsonrpc\endpoint.py", line 113, in consume
    self._handle_request(message['id'], message['method'], message.get('params'))
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls_jsonrpc\endpoint.py", line 182, in _handle_request
    handler_result = handler(params)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls_jsonrpc\dispatchers.py", line 23, in handler
    return method(**(params or {}))
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\python_ls.py", line 321, in m_text_document__completion
    return self.completions(textDocument['uri'], position)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\python_ls.py", line 239, in completions
    completions = self._hook('pyls_completions', doc_uri, position=position)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\python_ls.py", line 155, in _hook
    return hook_handlers(config=self.config, workspace=workspace, document=doc, **kwargs)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\hooks.py", line 286, in __call__
    return self._hookexec(self, self.get_hookimpls(), kwargs)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\manager.py", line 93, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\manager.py", line 337, in traced_hookexec
    return outcome.get_result()
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\callers.py", line 80, in get_result
    raise ex[1].with_traceback(ex[2])
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\callers.py", line 52, in from_call
    result = func()
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\manager.py", line 335, in <lambda>
    outcome = _Result.from_call(lambda: oldcall(hook, hook_impls, kwargs))
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\manager.py", line 87, in <lambda>
    firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\callers.py", line 208, in _multicall
    return outcome.get_result()
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\callers.py", line 80, in get_result
    raise ex[1].with_traceback(ex[2])
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\plugins\jedi_completion.py", line 68, in pyls_completions
    return [_format_completion(d, include_params) for d in definitions] or None
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\plugins\jedi_completion.py", line 68, in <listcomp>
    return [_format_completion(d, include_params) for d in definitions] or None
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\plugins\jedi_completion.py", line 103, in _format_completion
    if include_params and hasattr(d, 'params') and d.params:
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\jedi\cache.py", line 143, in wrapper
    result = method(self, *args, **kwargs)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\jedi\api\classes.py", line 338, in params
    for context in self._name.infer():
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\jedi\evaluate\names.py", line 143, in infer
    return tree_name_to_contexts(parent.evaluator, parent, self.tree_name)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\jedi\evaluate\syntax_tree.py", line 622, in tree_name_to_contexts
    raise ValueError("Should not happen. type: %s" % typ)

ValueError: Should not happen. type: del_stmt  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls_jsonrpc\endpoint.py", line 113, in consume
    self._handle_request(message['id'], message['method'], message.get('params'))
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls_jsonrpc\endpoint.py", line 182, in _handle_request
    handler_result = handler(params)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls_jsonrpc\dispatchers.py", line 23, in handler
    return method(**(params or {}))
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\python_ls.py", line 321, in m_text_document__completion
    return self.completions(textDocument['uri'], position)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\python_ls.py", line 239, in completions
    completions = self._hook('pyls_completions', doc_uri, position=position)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\python_ls.py", line 155, in _hook
    return hook_handlers(config=self.config, workspace=workspace, document=doc, **kwargs)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\hooks.py", line 286, in __call__
    return self._hookexec(self, self.get_hookimpls(), kwargs)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\manager.py", line 93, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\manager.py", line 337, in traced_hookexec
    return outcome.get_result()
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\callers.py", line 80, in get_result
    raise ex[1].with_traceback(ex[2])
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\callers.py", line 52, in from_call
    result = func()
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\manager.py", line 335, in <lambda>
    outcome = _Result.from_call(lambda: oldcall(hook, hook_impls, kwargs))
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\manager.py", line 87, in <lambda>
    firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\callers.py", line 208, in _multicall
    return outcome.get_result()
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\callers.py", line 80, in get_result
    raise ex[1].with_traceback(ex[2])
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pluggy\callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\plugins\jedi_completion.py", line 68, in pyls_completions
    return [_format_completion(d, include_params) for d in definitions] or None
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\plugins\jedi_completion.py", line 68, in <listcomp>
    return [_format_completion(d, include_params) for d in definitions] or None
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\pyls\plugins\jedi_completion.py", line 103, in _format_completion
    if include_params and hasattr(d, 'params') and d.params:
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\jedi\cache.py", line 143, in wrapper
    result = method(self, *args, **kwargs)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\jedi\api\classes.py", line 338, in params
    for context in self._name.infer():
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\jedi\evaluate\names.py", line 143, in infer
    return tree_name_to_contexts(parent.evaluator, parent, self.tree_name)
  File "C:\Users\AlexStoll\Anaconda3\lib\site-packages\jedi\evaluate\syntax_tree.py", line 622, in tree_name_to_contexts
    raise ValueError("Should not happen. type: %s" % typ)

ValueError: Should not happen. type: del_stm

Versions

• Spyder version: 4.0.1
• Python version: 3.6.8
• Qt version: 5.9.6
• PyQt5 version: 5.9.2
• Operating System: Windows 10

Dependencies

atomicwrites >=1.2.0         :  1.3.0 (OK)
chardet >=2.0.0              :  3.0.4 (OK)
cloudpickle >=0.5.0          :  1.3.0 (OK)
diff_match_patch >=20181111  :  20181111 (OK)
intervaltree                 :  None (OK)
IPython >=4.0                :  7.12.0 (OK)
jedi =0.14.1                 :  0.14.1 (OK)
nbconvert >=4.0              :  5.6.1 (OK)
numpydoc >=0.6.0             :  0.9.2 (OK)
pexpect >=4.4.0              :  4.8.0 (OK)
pickleshare >=0.4            :  0.7.5 (OK)
psutil >=0.3                 :  5.6.7 (OK)
pygments >=2.0               :  2.5.2 (OK)
pylint >=0.25                :  2.4.4 (OK)
pyls >=0.31.2;<0.32.0        :  0.31.7 (OK)
zmq >=17                     :  18.1.1 (OK)
qdarkstyle >=2.7             :  2.8 (OK)
qtawesome >=0.5.7            :  0.6.1 (OK)
qtconsole >=4.6.0            :  4.6.0 (OK)
qtpy >=1.5.0                 :  1.9.0 (OK)
rtree >=0.8.3                :  0.9.3 (OK)
sphinx >=0.6.6               :  2.4.0 (OK)
spyder_kernels >=1.8.1;<2.0.0:  1.8.1 (OK)
watchdog                     :  None (OK)
cython >=0.21                :  0.29.7 (OK)
matplotlib >=2.0.0           :  3.0.3 (OK)
numpy >=1.7                  :  1.18.1 (OK)
pandas >=0.13.1              :  1.0.1 (OK)
scipy >=0.17.0               :  1.2.1 (OK)
sympy >=0.7.3                :  1.4 (OK)

[ccordoba12]

What's your parso version?

[N22YF]

0.6.1

[ccordoba12]

Please downgrade to 0.5.2. That's the only version compatible with Jedi 0.14.1

[N22YF]

Ah okay, thanks! I just installed through Anaconda - not sure why I ended up with incompatible versions.