25 lines
451 B
Markdown
25 lines
451 B
Markdown
---
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title: Partial sum list
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type: snippet
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language: python
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tags: [list]
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cover: digital-nomad-16
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dateModified: 2021-01-13T23:30:41+02:00
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---
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Creates a list of partial sums.
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- Use `itertools.accumulate()` to create the accumulated sum for each element.
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- Use `list()` to convert the result into a list.
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```py
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from itertools import accumulate
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def cumsum(lst):
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return list(accumulate(lst))
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```
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```py
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cumsum(range(0, 15, 3)) # [0, 3, 9, 18, 30]
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```
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