Pandas - Filtering None Values

Question

I\'m using Pandas to explore some datasets. I have this dataframe:

I want to exclude any row that has a city value. So I\'ve tried:

new_df =         


        

Answer 1

I hope "where" can do what you expect

new_df = new_df.where(new_df["city"], None) 

And it is better use np.nan rather than None.

For more details pandas.DataFrame.where