isnull

Remove rows with empty lists from pandas data frame Question: I have a data frame with some columns with empty lists and others with lists of strings: donation_orgs donation_context 0 [] [] 1 [the research of Dr. …] [In lieu of flowers , memorial donations …] I’m trying to return a data set without any …

Peewee syntax for selecting on null field Question: I have researched this everywhere and can’t seem to find an answer. I hope I haven’t duplicated this (as it’s my first question on SO). I am trying to write a select query with Peewee that would normally go … WHERE foo = NULL; in SQL world. …