pylint-errors
E1137 (unsupported-assignment-operation)
Problematic code:
class Foo:
def __init__(self, numbers):
self.numbers = numbers
def __getitem__(self, value):
return self.numbers[value]
foo = Foo([1, 2, 3])
foo[0] = 0
print(foo[0])
Correct code:
class Foo:
def __init__(self, numbers):
self.numbers = numbers
def __getitem__(self, value):
return self.numbers[value]
def __setitem__(self, index, value):
self.numbers[index] = value
foo = Foo([1, 2, 3])
foo[0] = 0
print(foo[0])
Rationale:
Emitted when an object does not support item assignment (i.e. doesn’t define
__setitem__ method).