I read that list cannot be used as a key in a dictionary in python but I tried and its working fine. What am I missing? This is what I tried.
a={'hello':2,'[2,4,3]':'hi'}
print(a)
gives:
{'hello': 2, '[2,4,3]': 'hi'}
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buran
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Nikhil John
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5`'[2,4,3]'` is a string, not a list. – tkausl Feb 03 '22 at 07:49
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If for whatever reason you want to have collection type as a key, you can use immutable type as `tuple`. – buran Feb 03 '22 at 08:02
1 Answers
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'[2,4,3]' is a string. If you take away the quotation marks, then it's a list. And if you try to assign it as a key you'd get:
TypeError: unhashable type: 'list'
Arthur
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