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python/snippets/is-empty.md

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+---
+title: Collection is empty
+type: snippet
+tags: [list,dictionary,string]
+author: chalarangelo
+cover: salad-1
+dateModified: 2023-01-12T05:00:00-04:00
+---
+
+Checks if the a value is an empty sequence or collection.
+
+- Use `not` to test the truth value of the provided sequence or collection.
+
+```py
+def is_empty(val):
+  return not val
+```
+
+```py
+is_empty([]) # True
+is_empty({}) # True
+is_empty('') # True
+is_empty(set()) # True
+is_empty(range(0)) # True
+is_empty([1, 2]) # False
+is_empty({ 'a': 1, 'b': 2 }) # False
+is_empty('text') # False
+is_empty(set([1, 2])) # False
+is_empty(range(2)) # False
+```