Divide one array into multiple arrays. Divide by an array of adjacent integers.

>>> l = [ 57, 58, 59, 60, 61, 78, 79, 80, 81, 82, 83, 101, 102, 103, 104, 105, 106]
>>> sp = [[]]
>>> for i in range(len(l)):
    if i == len(l) - 1:
        sp[-1].append(l[i])
        break
    diff = l[i+1] - l[i]
    sp[-1].append(l[i])
    if diff > 1:
        sp.append([])


>>> sp
[[57, 58, 59, 60, 61], [78, 79, 80, 81, 82, 83], [101, 102, 103, 104, 105, 106]]
>>>

# shuffled
arr = [106, 82, 80, 57, 58, 103, 59, 61, 78, 102, 79, 81, 83, 101, 104, 60, 105, 108]

def group_by_adj(list, _range=1):
    arr = sorted(list)
    from_idx = 0;
    for curr in xrange(1, len(arr)):
        if (arr[curr] - arr[curr-1] > _range):
            yield arr[from_idx:curr]
            from_idx = curr          
    yield arr[from_idx:]

#test 1 
for x in group_by_adj(arr):
    print(x)

#test 2, with _range options
print(list(group_by_adj(arr, 17)))