python - Best way to reduce dictionary of lists -

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i asking question starting point of pythonic way reduce of list contents in following dictionary using list comprehensions:

{'cycle1': [1, 2407, 2393, 14],  'cycle2': [2, 1657, 1652, 5],   'cycle3': [3, 2698, 2673, 25],   'cycle4': [4, 2116, 2102, 14],   'cycle5': [5, 2065, 2048, 17],   'cycle6': [6, 1633, 1615, 18]}

each list's columns, though not marked, have these headers:

section_num,account_total,billable_count,nonbillable_count

i want sum each of last 3 columns, account_total, billable_count, non-billable_count in list comprehension.

i'm not sure how sum going through each list member in comprehension. need ask values of each key, each value being list. i'm little unsure how that.

how using zip? individual sum of each column, although i'm not sure want.

[sum(x) x in zip(*my_dict.values())[1:]]

this outputs:

[12576, 12483, 93]

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