Question

此代码通常适用于python 2.7，同时在python 3.7上引发此错误 billresponse = self.client.service.process(__inject={'msg': body})

body是xml的str，它在生产环境中运行了2年以上，但是一旦我们升级到python 3.7并安装了suds-py3，就会停止运行。

异常

AttributeError: 'NoneType' object has no attribute 'promotePrefixes'
File "./path/to/file.py", line 119, in soap_connect
   billresponse = self.client.service.process(__inject={'msg': body})
 File "/var/www/html/venv/lib/python3.7/site-packages/suds/client.py", line 559, in __call__
   return client.invoke(args, kwargs)
 File "/var/www/html/venv/lib/python3.7/site-packages/suds/client.py", line 785, in invoke
   return self.send(msg)
 File "/var/www/html/venv/lib/python3.7/site-packages/suds/client.py", line 658, in send
   result = self.succeeded(binding, reply.message)
 File "/var/www/html/venv/lib/python3.7/site-packages/suds/client.py", line 696, in succeeded
   reply, result = binding.get_reply(self.method, reply)
 File "/var/www/html/venv/lib/python3.7/site-packages/suds/bindings/binding.py", line 150, in get_reply
   soapenv.promotePrefixes()

Answer 1

这可能有很多原因。其中，如果suds无法解析响应（因为未收到预期的xml），则会引发此错误。
为了确定收到的肥皂水，请启用肥皂水日志：

logging.basicConfig(level=logging.DEBUG)
logging.getLogger('suds.client').setLevel(logging.DEBUG)

suds 3`__inject`引发AttributeError：'NoneType'对象没有属性'promotePrefixes'

异常

1 个答案: