mirror of
https://github.com/Brandon-Rozek/website.git
synced 2024-11-25 09:36:31 -05:00
18 lines
No EOL
644 B
Markdown
18 lines
No EOL
644 B
Markdown
---
|
|
title: "Quick Python: Length of Iterables"
|
|
date: 2020-03-25T18:28:09-04:00
|
|
draft: false
|
|
tags: ["Python"]
|
|
medium_enabled: true
|
|
---
|
|
|
|
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.
|
|
|
|
```python
|
|
from functools import reduce
|
|
|
|
def ilen(iterable):
|
|
return reduce(lambda sum, element: sum + 1, iterable, 0)
|
|
```
|
|
|
|
This also turns out to be memory efficient since we are only loading in one object into memory from the iterable at a time. |