27 lines
679 B
Markdown
27 lines
679 B
Markdown
---
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title: Check lists have same contents
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tags: list
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expertise: intermediate
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author: maciv
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firstSeen: 2020-03-15T12:54:08+02:00
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lastUpdated: 2020-11-02T19:28:05+02:00
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---
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Checks if two lists contain the same elements regardless of order.
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- Use `set()` on the combination of both lists to find the unique values.
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- Iterate over them with a `for` loop comparing the `count()` of each unique value in each list.
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- Return `False` if the counts do not match for any element, `True` otherwise.
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```py
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def have_same_contents(a, b):
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for v in set(a + b):
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if a.count(v) != b.count(v):
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return False
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return True
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```
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```py
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have_same_contents([1, 2, 4], [2, 4, 1]) # True
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```
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