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python/snippets/have-same-contents.md

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+---
+title: Check lists have same contents
+type: snippet
+tags: [list]
+cover: racoon
+dateModified: 2020-11-02T19:28:05+02:00
+---
+
+Checks if two lists contain the same elements regardless of order.
+
+- Use `set()` on the combination of both lists to find the unique values.
+- Iterate over them with a `for` loop comparing the `count()` of each unique value in each list.
+- Return `False` if the counts do not match for any element, `True` otherwise.
+
+```py
+def have_same_contents(a, b):
+  for v in set(a + b):
+    if a.count(v) != b.count(v):
+      return False
+  return True
+```
+
+```py
+have_same_contents([1, 2, 4], [2, 4, 1]) # True
+```