Fwd: PYTHON BUG. deleting elements of list.

[Peter Otten]

Peter Otten wrote:

> If the list is huge you can also delete in reverse order:
> 
> for i in reversed(len(_list)):

Make that reversed(range(len(_list))).

>     if discard(_list[i]):
>         del _list[i]

Example:

>>> items = ['a', 'b', 'c', 'd', 'e']
>>> for i, item in enumerate(items):
...     if item in "bcd":
...         del items[i]
... 
>>> items
['a', 'c', 'e']
>>> items = ['a', 'b', 'c', 'd', 'e']
>>> for i in reversed(range(len(items))):
...     if items[i] in "bcd":
...         del items[i]
... 
>>> items
['a', 'e']