/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

1 vote256 views1 answer
Hex to binary python3
Python
-1 vote199 views1 answer
Python set multiple values at once
Python
11 votes208 views6 answers
Dataframe delete duplicate rows with same column value
Python
0 vote215 views1 answer
Percentage of null values for every variable in dataframe
Python
0 vote168 views1 answer
Fibonacci sequence in python
Python
0 vote201 views1 answer
Plt.suptitle position
Python
5 votes195 views4 answers
Shebang python
Python
1 vote215 views1 answer
Pandas iterate over a series
Python
0 vote206 views1 answer
PyPi module to make your terminal look like hacking
Python
0 vote192 views2 answers
Python simple project
Python