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17 lines
623 B
Markdown
17 lines
623 B
Markdown
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---
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title: "Quick Python: Length of Iterables"
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date: 2020-03-25T18:28:09-04:00
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draft: false
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tags: ["python"]
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---
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I wanted to find the length of what I know is a finite iterable. Normally you would think of using the `len` function but it does not work in this case. [Al Hoo](https://stackoverflow.com/a/44351664) on StackOverflow shared a quick snippet to calculate this.
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```python
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from functools import reduce
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def ilen(iterable):
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return reduce(lambda sum, element: sum + 1, iterable, 0)
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```
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This also turns out to be memory efficient since we are only loading in one object into memory from the iterable at a time.
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