Can A List Be A Key In A Dictionary Python
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Can A List Be A Key In A Dictionary Python
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Python Dictionary Tutorial With Example And Interview Questions
Why can t I use a list as a dict key in Python d repr 1 2 3 value 1 2 3 value As explained by others here indeed you cannot You can however use its string representation instead if you really want to use your list You can't, a list is mutable and therefore non-hashable. Dictionary keys need to be hashable. What you can do is use a tuple instead. d= { ('a','b','c'): 1 }
Python List Tuple Set Dictionary Shawn Blog
Can A List Be A Key In A Dictionary PythonI think zip () doesn't do what you think it does. zip makes a list of pairs from a pair of lists, like this: >>> zip ( (1, 2, 3), ('a', 'b', 'c')) [ (1, 'a'), (2, 'b'), (3, 'c')] Use a tuple instead of lists. They can be used as keys in dictionaries. Assuming that the lists have a. In Python we use dictionaries to check if an item is present or not Dictionaries use key value pair to search if a key is present or not and if the key is present what is its value We can use integer string tuples as dictionary keys but cannot use list as a key of it The reason is explained below
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