环境：

PyCharm 2018，Python 3.6+

问题：

Debug模式下调试CS20si中词嵌入例子word2vec报错：

Exception ignored in: <generator object _yield_value at 0x0000011ACEDF22B0>

Traceback (most recent call last):

  File "E:\Anaconda3\envs\ML\lib\site-packages\tensorflow\python\data\util\nest.py", line 100, in _yield_value

    yield value

SystemError: error return without exception set

解决办法：

在Run->Edit Configurations中添加Environment variable：

PYDEVD_USE_FRAME_EVAL=NO