Pythonic way for calculating length of lists in pandas dataframe column

Question

I have a dataframe like this:

I am calculation length of lists in the CreationDate column and making a new Length column like this:

df['Length'] = df.CreationDate.apply(lambda x: len(x))

Which gives me this:

Is there a more pythonic way to do this?

Answer 1

You can utilize the str accessor for some list operations as well. For instance:

df['CreationDate'].str.len()

returns the length of each list. Refer the following link for str.len:

https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Series.str.len.html

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