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python/snippets/compact.md

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+---
+title: Compact list
+type: snippet
+tags: [list]
+cover: new-plant
+dateModified: 2020-11-02T19:27:07+02:00
+---
+
+Removes falsy values from a list.
+
+- Use `filter()` to filter out falsy values (`False`, `None`, `0`, and `""`).
+
+```py
+def compact(lst):
+  return list(filter(None, lst))
+```
+
+```py
+compact([0, 1, False, 2, '', 3, 'a', 's', 34]) # [ 1, 2, 3, 'a', 's', 34 ]
+```