Raise error

[yvespayette]

I have had this error:

File ".\wpy64\python-3.8.5.amd64\lib\sre_parse.py", line 668, in _parse
# raise source.error("nothing to repeat",

error: nothing to repeat

Any idea?

[yvespayette]

COMMENT: I am trying to do a hyper fast keyWord match (series) of a variable.

from grepfunc import grep
COMMENT: grep titles with the word DESC in them. Note: i=True will ignore case.

col_op = kw_operations2['kw']
operations2['match'] = operations2['description'].apply(lambda x: grep(col_op, x, i=True) )

[yvespayette]

Found the text that generated the problem:

"embolectomie artere mesenterique (+-pontage)"

The +- sign seems to cause problem.

I made a function to replace all + - ? # to be removed from KeyWords and that resolved the problem.

thanks for the function!