25 lines
571 B
Markdown
25 lines
571 B
Markdown
---
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title: Cast to list
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tags: list
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expertise: intermediate
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cover: blog_images/colorful-pots.jpg
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firstSeen: 2019-08-20T12:47:43+03:00
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lastUpdated: 2020-11-02T19:27:07+02:00
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---
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Casts the provided value as a list if it's not one.
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- Use `isinstance()` to check if the given value is enumerable.
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- Return it by using `list()` or encapsulated in a list accordingly.
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```py
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def cast_list(val):
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return list(val) if isinstance(val, (tuple, list, set, dict)) else [val]
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```
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```py
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cast_list('foo') # ['foo']
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cast_list([1]) # [1]
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cast_list(('foo', 'bar')) # ['foo', 'bar']
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```
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