Reorganize snippets

python/s/all-equal.md

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+---
+title: Check if list elements are identical
+type: snippet
+language: python
+tags: [list]
+cover: fallen-leaves
+dateModified: 2020-10-11T13:40:42+03:00
+---
+
+Checks if all elements in a list are equal.
+
+- Use `set()` to eliminate duplicate elements and then use `len()` to check if length is `1`.
+
+```py
+def all_equal(lst):
+  return len(set(lst)) == 1
+```
+
+```py
+all_equal([1, 2, 3, 4, 5, 6]) # False
+all_equal([1, 1, 1, 1]) # True
+```