Hi,
I wrote below 2 classes to explore how __getitem__(self,k) works in
conjuection with list subscriptions. Both code works. Now my questions
which way the community encourages more in Python: if isinstance(key,
slice): or if type(key) == slice: ? How should I implement this if I
follow duck typing, because none of the code currently I wrote using
duck typing techiniqe IMO.
class MyCustomList:
def __init__(self, list = []):
self.list = list
def __getitem__(self, key):
if isinstance(key, slice):
return self.list[key]
else:
return self.list[key]
class MyCustomListV1:
def __init__(self, list = []):
self.list = list
def __getitem__(self, key):
if type(key) == slice:
return self.list[key]
else:
return self.list[key]
if __name__ == '__main__':
list = MyCustomList(list=[1, 2, 3, 4, 5, 6])
print(list[1:3])
print(list[3])
print("=======\n")
list = MyCustomListV1(list=[1, 2, 3, 4, 5, 6])
print(list[1:3])
print(list[3])
If run it, I get the output:
[2, 3]
4
=======
[2, 3]
4
--
Thanks,
Arup Rakshit
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