/Python/TypeError: unhashable type: 'list' python dictionary

TypeError: unhashable type: 'list' python dictionary

The error you gave is due to the fact that in python, dictionary keys must be immutable types (if key can change, there will be problems), and list is a mutable type.

Your error says that you try to use a list as dictionary key, you'll have to change your list into tuples if you want to put them as keys in your dictionary.

According to the python doc :

The only types of values not acceptable as keys are values containing lists or dictionaries or other mutable types that are compared by value rather than by object identity, the reason being that the efficient implementation of dictionaries requires a key’s hash value to remain constant

Source: alysivji.github.io

Similar codes

3 votes124 views2 answers
Find minimum and maximum element in an array
Python
10 votes167 views2 answers
Copy whole directory python
Python
31 votes138 views4 answers
Python remove nan rows
Python
1 vote139 views5 answers
How to read multiple worksheet from a single workbook in column in python
Python
3 votes134 views1 answer
Djnagi import model form
Python
0 vote167 views1 answer
Concat dataset
Python
12 votes143 views2 answers
Online ide for python 3
Python
0 vote128 views1 answer
Qtile: latest development version
Python
0 vote131 views1 answer
Python drop rows with two conditions
Python
45 votes138 views6 answers
Get files in directory python
Python