列表中的 Python 无限循环

Question

I'm sure it's something very obvious that I am missing but can someone tell me why this code snippet continues in an endless loop?

bucket = [['Louis', 29], ['Nick', 2], ['Rochelle', 4]]

def find_index(bucket,keyword):
    index = 0
    for e in bucket:
        while e[0] <> keyword:
            index = index + 1
    return index


print find_index(bucket,'Nick')

Answer 1

How about this ?
Two for-loops to prevent the loop running infinite.

bucket = [['Louis', 29], ['Nick', 2], ['Rochelle', 4]]

def find_index(bucket, keyword):
    for index, subArray in enumerate(bucket):
        for element in subArray:
            if element == keyword:
                return index

print find_index(bucket, 'Nick')

Answer 2

How about?

bucket = [['Louis', 29], ['Nick', 2], ['Rochelle', 4]]

def find_index(bucket,keyword):
    index = 0
    for e in bucket:
        while e[index] <> keyword:
            index = index + 1
    return index


print find_index(bucket,'Nick')

You have used e[0] instead of e[index] .