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python/snippets/for-each-right.md

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+---
+title: Execute function for each list element in reverse
+type: snippet
+tags: [list]
+cover: bridge-drop
+dateModified: 2020-09-15T16:13:06+03:00
+---
+
+Executes the provided function once for each list element, starting from the list's last element.
+
+- Use a `for` loop in combination with slice notation to execute `fn` for each element in `itr`, starting from the last one.
+
+```py
+def for_each_right(itr, fn):
+  for el in itr[::-1]:
+    fn(el)
+```
+
+```py
+for_each_right([1, 2, 3], print) # 3 2 1
+```