Python 使用AWS Lambda重写URL路径

我想用Lamdba@Edge要重写下一个URL路径，请执行以下操作：

https://example.com/app OR https://example.com/app/ TO https://example.com/app/index.html
https://example.com/app/#/test123 TO https://example.com/app/index.html#/test123

使用官方文档，我编写了以下Python Lambda函数，但我不确定哪里错了

def lambda_handler(event, context):
    request = event['Records'][0]['cf']['request']
    if request in ('https://example.com/app', 'https://example.com/app/'):
        request = "https://example.com/app/index.html"
    else:
        request = request.replace("/#/","/index.html#/")
    return request

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你犯了什么错误？你犯了什么错误？