I have a list of pandas.Timedelta objects
In [31]: r
Out[31]: [Timedelta('0 days 00:00:12'), Timedelta('0 days 00:10:02')]
I can sum them up with the plus operator
In [32]: r[0] + r[1]
Out[32]: Timedelta('0 days 00:10:14')
But not using sum()
In [33]: sum(r)
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-33-1ab9ba54065b> in <module>
----> 1 sum(r)
TypeError: unsupported operand type(s) for +: 'int' and 'Timedelta'
Is that expected? I would expect sum() to work in this case.
Is there a way to sum the pandas.Timedelta objects in the list without explicitly iterating over it?
From the docs for the sum function
This function is intended specifically for use with numeric values and may reject non-numeric types.
However, you can make it work by passing in a start value (which is integer 0 by default)
from datetime import timedelta
r = [timedelta(0), timedelta(days=1)]
sum(r, timedelta(0))