How to convert timedelta (with days) to total seconds

I need to covert Time Elapsed to total seconds. I used three functions with no luck.

First function:

ny["Time Elapsed"].time()

AttributeError: 'Series' object has no attribute 'time'

Second function:

ny["Time Elapsed"].total_seconds()

AttributeError: 'Series' object has no attribute 'total_seconds'

Third function:

ny["Time Elapsed"](int)

TypeError: 'Series' object is not callable

a picture of the dataframe is attached.

I am trying to convert the time duration in the time elapsed column to seconds. The name of the dataframe is "ny".

Your problem arises because you are not using the .dt accessor. You should use:

ny['tot_s'] = ny["Time Elapsed"].dt.total_seconds()