How can I output a row of DataFram in python , numpy array?

Question

Hello,
In the following code, 'Covid' dataset has two columns named cases and deaths. I must create a new column named ratio which is deaths/cases. Then I must represent the row related to date which its ratio element was maximum. I have the problem with the last section. I can not do that. Can anyone help me?
Thank you.

https://code.sololearn.com/c3G5qnn6JX84/?ref=app

Answer 1

Same?
https://www.sololearn.com/Discuss/3078098/?ref=app