Dear Peter, Deal all, Trying different options, I manage this solution:
mask = (df['datatime'] > str(start_date[ii])) & (df['datatime'] <= str(end_date[ii])) As you can notice, I have put str before start_date[ii]) and end_date[ii]. What do you think? Thanks On Monday, 4 February 2019 20:00:32 UTC+1, Peter Otten wrote: > Diego Avesani wrote: > > > this is the code: > > While the example is fine now it runs without error over here, on rather old > versions of pandas (0.13.1) and numpy (1.8.2). > > Therefore I'm out of the debugging cycle for now. -- https://mail.python.org/mailman/listinfo/python-list