Jason Friedman wrote:

> def test_to_start(s):
>     return "2" in s
> 
> for line in itertools.dropwhile(test_to_start, data.splitlines()):
>     print(line)

It's really all in the names: it could either be

for line in dropwhile(test_to_drop, items):
    ...

or

for line in dropwhilenot(test_to_start, items):
    ...
 
> <---- end code ---->
> 
> I expect:
> 
> $ python3 dropwhile.py
> Line2
> 
> Line4
> Line5
> 
> 
> I get:
> 
> $ python3 dropwhile.py
> Line1
> Line2
> 
> Line4
> Line5
> 
> 
> Please explain.


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