Pandas Apply function, User Defined Function

In this video we will try to understand the importance of apply function

[Asoville]

Thank you, Teja. This was really helpful.

[osoriomatucurane]

Awesome tutorial on apply method. My question is why using two functions the udf and the lambda unonimous function over the apply method instead of a single function the udf or lambda.
Could we alternatively use list compreehension to create the desired new column based on column?
Thank u sir

[mlsanji]

Thanks for the video...explained neatly with examples.

[mirfan]

can you share the jupyter notebook file?