python - 处理 ConnectionResetError

Question

我有一个关于在 Python3 中处理 ConnectionResetError 的问题。这通常发生在我使用 urllib.request.Request 函数时。我想知道如果我们遇到这样的错误是否可以重做请求。例如

def get_html(url):
    try:
        request = Request(url)
        response = urlopen(request)
        html = response.read()
    except ConectionReserError as e:
        get_html(url)

Answer 1

这真的取决于服务器，但你可以这样做:

def get_html(url, retry_count=0):
    try:
        request = Request(url)
        response = urlopen(request)
        html = response.read()
    except ConectionResetError as e:
        if retry_count == MAX_RETRIES:
            raise e
        time.sleep(for_some_time)
        get_html(url, retry_count + 1)

另见 Python handling socket.error: [Errno 104] Connection reset by peer