On Monday, December 4, 2017 at 7:10:01 PM UTC, Jason Maldonis wrote: > I was extending a `list` and am wondering why slicing lists will never > raise an IndexError, even if the `slice.stop` value if greater than the > list length. > > Quick example: > > my_list = [1, 2, 3] > my_list[:100] # does not raise an IndexError, but instead returns the full > list > > Is there any background on why that doesn't raise an IndexError? Knowing > that might help me design my extended list class better. For my specific > use case, it would simplify my code (and prevent `if isinstance(item, > slice)` checks) if the slicing raised an IndexError in the example I gave.
This is explained in the Python tutorial for strings https://docs.python.org/3/tutorial/introduction.html#strings, as a list is a sequence just like a string it will act in exactly the same way. -- Kindest regards. Mark Lawrence. -- https://mail.python.org/mailman/listinfo/python-list
