我正在服务器上运行代码，当我第一次在服务器上启动时，与Amazon的连接工作正常，但是在某些请求后，它始终会失败。如果我重新启动服务器，它将再次开始工作，但是在以前的相同情况下会失败。我尝试从服务器更改IP，以检查我的IP是否被阻止。但是事实并非如此。我从API中没有得到明确的错误，只有一个空对象错误，所以我不知道如何解决该问题。
这是错误：
Traceback (most recent call last):
File "/usr/local/lib/python3.5/dist-packages/amazon/api.py", line 174, in lookup
response = self.api.ItemLookup(ResponseGroup=ResponseGroup, **kwargs)
File "/usr/local/lib/python3.5/dist-packages/bottlenose/api.py", line 274, in __call__
{'api_url': api_url, 'cache_url': cache_url})
File "/usr/local/lib/python3.5/dist-packages/bottlenose/api.py", line 235, in _call_api
return urllib2.urlopen(api_request, timeout=self.Timeout)
File "/usr/lib/python3.5/urllib/request.py", line 163, in urlopen
return opener.open(url, data, timeout)
File "/usr/lib/python3.5/urllib/request.py", line 466, in open
response = self._open(req, data)
File "/usr/lib/python3.5/urllib/request.py", line 484, in _open
'_open', req)
File "/usr/lib/python3.5/urllib/request.py", line 444, in _call_chain
result = func(*args)
File "/usr/lib/python3.5/urllib/request.py", line 1297, in https_open
context=self._context, check_hostname=self._check_hostname)
File "/usr/lib/python3.5/urllib/request.py", line 1254, in do_open
h.request(req.get_method(), req.selector, req.data, headers)
File "/usr/lib/python3.5/http/client.py", line 1107, in request
self._send_request(method, url, body, headers)
File "/usr/lib/python3.5/http/client.py", line 1147, in _send_request
self.putheader(hdr, value)
File "/usr/lib/python3.5/http/client.py", line 1083, in putheader
if _is_illegal_header_value(values[i]):
TypeError: expected string or bytes-like object
非常感谢！