Gerard> David Hirschfield wrote:
>> I have this function:
>>
>> def sequentialChunks(l, stride=1):
...
>>
>> Which takes a list of numerical values "l" and splits it into chunks
>> where each chunk is sequential...
Gerard> see the groupby example here:
Gerard> http://docs.python.org/lib/itertools-example.html
I've never been a fan of the operator module, so I find the example in the
docs ugly even though it's succinct. I'd also never used groupby but
thought it was the solution to the problem. As I was walking home from the
train I realized how it would work. You beat me to the punch with your
reply, but I'll post my solution anyway:
from itertools import groupby
class Counter:
def __init__(self):
self.last = None
self.value = True
def __call__(self, val):
if self.last is not None and self.last+1 != val:
self.value = not self.value
self.last = val
return self.value
for key, group in groupby([1,2,3, 5,6, 8, 12,13,14], Counter()):
print list(group)
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