This is just working on the column *names*, which should be strings. So you shouldn't have any issues there. But yeah, using str.replace and the like on a column with NaN values will end poorly! - ThreadSky

lernerpython.com • 165 days ago

This is just working on the column *names*, which should be strings. So you shouldn't have any issues there.

But yeah, using str.replace and the like on a column with NaN values will end poorly!