Does pandas iterrows have performance issues?

Question

I have noticed very poor performance when using iterrows from pandas.

Is this something that is experienced by others? Is it specific to iterrows and should this fun

Answer 1

Yes, Pandas itertuples() is faster than iterrows(). you can refer the documentation: https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.iterrows.html

"To preserve dtypes while iterating over the rows, it is better to use itertuples() which returns namedtuples of the values and which is generally faster than iterrows."