在python 3.5中从数组中查找间隔范围

def find_ranges(arr, interval):
    ranges = []
    start = arr[0]
    end = arr[0]
    
    for i in range(1, len(arr)):
        if arr[i] - arr[i-1] == interval:
            end = arr[i]
        else:
            ranges.append((start, end))
            start = arr[i]
            end = arr[i]
    
    ranges.append((start, end))
    return ranges

result = find_ranges(arr, 2)

for start, end in result:
    print("Range: {} - {}".format(start, end))

def find_ranges(arr, interval):
    ranges = []
    start = arr[0]
    end = arr[0]
    
    for i in range(1, len(arr)):
        if arr[i] - arr[i-1] == interval:
            end = arr[i]
        else:
            ranges.append((start, end))
            start = arr[i]
            end = arr[i]
    
    ranges.append((start, end))
    return ranges

arr = [1, 3, 5, 7, 9, 11, 13, 15, 17, 19]
result = find_ranges(arr, 2)

for start, end in result:
    print("Range: {} - {}".format(start, end))

Range: 1 - 1
Range: 3 - 5
Range: 7 - 9
Range: 11 - 13
Range: 15 - 17
Range: 19 - 19