Pycharm console cannot connect after update

Question

I just updated Pycharm and everything works except the "Python Console" that gives the following error:

"/Applications/PyCharm CE.app/Contents/helpers/pydev/pydevconsole.py" 52830 52831

Traceback (most recent call last):
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/pydevconsole.py", line 526, in <module>
    pydevconsole.start_server(host, int(port), int(client_port), client_host)
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/pydevconsole.py", line 347, in start_server
    interpreter = InterpreterInterface(client_host, client_port, threading.currentThread())
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_ipython_console.py", line 24, in __init__
    self.interpreter = get_pydev_frontend(host, client_port)
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 461, in get_pydev_frontend
    _PyDevFrontEndContainer._instance = _PyDevFrontEnd()
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 310, in __init__
    self.ipython = PyDevTerminalInteractiveShell.instance()
  File "/Users/kiarash/anaconda/lib/python3.6/site-packages/traitlets/config/configurable.py", line 412, in instance
    inst = cls(*args, **kwargs)
  File "/Users/kiarash/anaconda/lib/python3.6/site-packages/IPython/terminal/interactiveshell.py", line 430, in __init__
    super(TerminalInteractiveShell, self).__init__(*args, **kwargs)
  File "/Users/kiarash/anaconda/lib/python3.6/site-packages/IPython/core/interactiveshell.py", line 516, in __init__
    self.init_completer()
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 234, in init_completer
    self.Completer = self._new_completer_500()
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 196, in _new_completer_500
    parent=self
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 87, in __init__
    self.matchers.remove(self.python_matches)
ValueError: list.remove(x): x not in list

Process finished with exit code 1

Answer 1

A patch has been committed on GitHub (https://github.com/JetBrains/intellij-community/commit/d9f32f650b5a1f4e7a9646011da415d27e18a210)

You can also apply the patch your self, file path:

<PyCharm Root>/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py

Modify:

     class PyDevIPCompleter(IPCompleter):

     def __init__(self, *args, **kwargs):
         """ Create a Completer that reuses the advanced completion support of PyDev
             in addition to the completion support provided by IPython """
         IPCompleter.__init__(self, *args, **kwargs)
         # Use PyDev for python matches, see getCompletions below
-        self.matchers.remove(self.python_matches)
+        if self.python_matches in self.matchers:
+            # `self.python_matches` matches attributes or global python names
+            self.matchers.remove(self.python_matches)

Answer 2

i found that ipython is the problem ipython(6.3.0) was updated but you should downgrade to ipython (6.2.0) if you want to use pycharm now