Traceback (most recent call last):


 "/Users/jia/.virtualenvs/tensorflow1.3/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 3972, in get_controller

if self.stack[-1] is not default:
IndexError: list index out of range

Traceback (most recent call last):


 "/usr/lib/python3/dist-packages/thonny/shared/thonny/ast_utils.py", line 178, in _mark_text_ranges_rec

tokens = _mark_end_and_return_child_tokens(node, tokens, prelim_end_lineno, prelim_end_col_offset)


 "/usr/lib/python3/dist-packages/thonny/shared/thonny/ast_utils.py", line 263, in _mark_end_and_return_child_tokens

_strip_trailing_junk_from_expressions(tokens)


 "/usr/lib/python3/dist-packages/thonny/shared/thonny/ast_utils.py", line 202, in _strip_trailing_junk_from_expressions

while (tokens[-1].type not in (token.RBRACE, token.RPAR, token.RSQB,
IndexError: list index out of range
