Python console freeze

Hi all,

os:

windows 10

python 3.6.8

pycharm 2018.3.2 X64

This problem is related to REPL Communication, I tried to run a short script and got the following error:

Traceback (most recent call last):
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\pydev\_pydev_comm\server.py", line 34, in handle
self.processor.process(iprot, oprot)
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\third_party\thriftpy\_shaded_thriftpy\thrift.py", line 266, in process
self.handle_exception(e, result)
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\third_party\thriftpy\_shaded_thriftpy\thrift.py", line 254, in handle_exception
raise e
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\third_party\thriftpy\_shaded_thriftpy\thrift.py", line 263, in process
result.success = call()
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\third_party\thriftpy\_shaded_thriftpy\thrift.py", line 228, in call
return f(*(args.__dict__[k] for k in api_args))
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\pydev\_pydev_bundle\pydev_console_utils.py", line 236, in getArray
return pydevd_thrift.table_like_struct_to_thrift_struct(array, name, roffset, coffset, rows, cols, format)
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\pydev\_pydevd_bundle\pydevd_thrift.py", line 588, in table_like_struct_to_thrift_struct
return TYPE_TO_THRIFT_STRUCT_CONVERTERS[type_name](array, name, roffset, coffset, rows, cols, format)
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\pydev\_pydevd_bundle\pydevd_thrift.py", line 533, in dataframe_to_thrift_struct
lambda r: (("%" + col_to_format(c)) % (df.iat[r, c] if dim > 1 else df.iat[r])
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\pydev\_pydevd_bundle\pydevd_thrift.py", line 545, in array_data_to_thrift_struct
data.append([var_to_str(value) for value in get_row(row)])
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\pydev\_pydevd_bundle\pydevd_thrift.py", line 545, in <listcomp>
data.append([var_to_str(value) for value in get_row(row)])
File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.2\helpers\pydev\_pydevd_bundle\pydevd_thrift.py", line 534, in <genexpr>
for c in range(cols)))
File "C:\Users\Aviv\PycharmProjects\project\venv\lib\site-packages\pandas\core\indexing.py", line 2142, in __getitem__
return self.obj._get_value(*key, takeable=self._takeable)
File "C:\Users\Aviv\PycharmProjects\project\venv\lib\site-packages\pandas\core\frame.py", line 2532, in _get_value
series = self._iget_item_cache(col)
File "C:\Users\Aviv\PycharmProjects\project\venv\lib\site-packages\pandas\core\generic.py", line 2515, in _iget_item_cache
lower = self._take(item, axis=self._info_axis_number)
File "C:\Users\Aviv\PycharmProjects\project\venv\lib\site-packages\pandas\core\generic.py", line 2789, in _take
verify=True)
File "C:\Users\Aviv\PycharmProjects\project\venv\lib\site-packages\pandas\core\internals.py", line 4539, in take
axis=axis, allow_dups=True)
File "C:\Users\Aviv\PycharmProjects\project\venv\lib\site-packages\pandas\core\internals.py", line 4421, in reindex_indexer
fill_tuple=(fill_value,))
File "C:\Users\Aviv\PycharmProjects\project\venv\lib\site-packages\pandas\core\internals.py", line 4446, in _slice_take_blocks_ax0
slice_or_indexer, self.shape[0], allow_fill=allow_fill)
File "C:\Users\Aviv\PycharmProjects\project\venv\lib\site-packages\pandas\core\internals.py", line 5902, in _preprocess_slice_or_indexer
return 'fancy', indexer, len(indexer)
TypeError: len() of unsized object

afterwards the python console froze and it looks like the REPL Communication is running without stopping.

What is exactly the meaning of REPL and how can I fix this bug?

BR,

Aviv