I want to find rows that contain a string, like so:
DF[DF.col.str.contains("foo")]
However, this fails because some elements are NaN:
ValueError: cannot index with vector containing NA / NaN values
So I resort to the obfuscated
DF[DF.col.notnull()][DF.col.dropna().str.contains("foo")]
Is there a better way?
