pylint-errors
E1140 (unhashable-dict-key)
Problematic code:
numbers = [1, 2, 3]
data[numbers] = len(numbers)
print(data)
Correct code:
numbers = (1, 2, 3)
data[numbers] = len(numbers)
print(data)
Rationale:
Emitted when a dict key is not hashable (i.e. doesn’t define hash method).