On Fri, 29 Jan 2021 at 14:37, Francis O'Hara Aidoo
wrote:
> I understand that the same effect can be achieved with the index notation
> - as in
> if listy[-1] == 10:
> print("Monty Python")
> - but the way that came naturally to me was to use the .index method
> rather than index notation, an
On 30/01/21 3:27 am, Francis O'Hara Aidoo wrote:
listy = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
if listy.index(10) == -1:
print("Monty Python")
> Although ambiguity will make it difficult to implement,
The difficulty isn't just with implementation, it's with
*specification*. How is it
index is meant to return the index of the first match it finds in the list from
the beginning, it's most simpless implementation is:
```
for i, v in enumerate(self):
if v == value:
return i
throw ValueError(f"Value '{value}' is not in list")
if you want the negative index, just
