使用Pycharm调试PyQt gui时出现奇怪的错误

我一直在使用PyCharm在PyQt中调试我的GUI。到目前为止，这确实非常成功，直到我在尝试调试gui时遇到一个奇怪的错误。我已经在脚本的开始以及各个点设置了一个断点，但是程序没有机会到达这一点。我也尝试删除所有断点并运行调试，但得到相同的结果。完整的回溯是：

C:\Users\pbreach\Continuum\Anaconda3\python.exe "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\pydevd.py" --multiproc --qt-support --client 127.0.0.1 --port 53720 --file C:/Users/pbreach/Dropbox/FIDS/cci/bluebook/code/input.py
Traceback (most recent call last):
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\_pydevd_bundle\pydevd_cython_wrapper.py", line 2, in <module>
    from _pydevd_bundle.pydevd_cython import trace_dispatch, PyDBAdditionalThreadInfo
ModuleNotFoundError: No module named '_pydevd_bundle.pydevd_cython'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\pydevconsole.py", line 8, in <module>
    from code import InteractiveConsole
ImportError: cannot import name 'InteractiveConsole'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\pydevd.py", line 26, in <module>
    from _pydevd_bundle.pydevd_additional_thread_info import PyDBAdditionalThreadInfo
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\_pydevd_bundle\pydevd_additional_thread_info.py", line 17, in <module>
    from _pydevd_bundle.pydevd_cython_wrapper import PyDBAdditionalThreadInfo
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\_pydevd_bundle\pydevd_cython_wrapper.py", line 26, in <module>
    mod = __import__(check_name)
  File "_pydevd_bundle\pydevd_cython_win32_36_64.pyx", line 9, in init _pydevd_bundle.pydevd_cython_win32_36_64 (_pydevd_bundle/pydevd_cython_win32_36_64.c:21388)
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\_pydevd_bundle\pydevd_frame.py", line 10, in <module>
    from _pydevd_bundle.pydevd_breakpoints import get_exception_breakpoint
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\_pydevd_bundle\pydevd_breakpoints.py", line 15, in <module>
    from _pydevd_bundle.pydevd_comm import get_global_debugger
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\_pydevd_bundle\pydevd_comm.py", line 75, in <module>
    import pydevconsole
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\pydevconsole.py", line 10, in <module>
    from _pydevd_bundle.pydevconsole_code_for_ironpython import InteractiveConsole
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.3\helpers\pydev\_pydevd_bundle\pydevconsole_code_for_ironpython.py", line 105
    except SyntaxError, err:
                      ^
SyntaxError: invalid syntax

Process finished with exit code 1

有谁知道导致此错误的原因以及如何解决？当我正常运行代码（无需调试）时，不会遇到任何这些错误。