我使用 flask, connexion 和 swagger UI 构建了我的 API。我使用 openapi 定义了我的 apispec。我从 swagger 编辑器创建了 swagger python 服务器存根，您可以在 Github 上找到示例项目。当我反序列化请求 JSON 数据进行验证时，将使用 util.py，但我遇到了以下错误：
错误信息：
Traceback (most recent call last):
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 2447, in wsgi_app
response = self.full_dispatch_request()
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1952, in full_dispatch_request
rv = self.handle_user_exception(e)
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1821, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\_compat.py", line 39, in reraise
raise value
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1950, in full_dispatch_request
rv = self.dispatch_request()
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1936, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\connexion\decorators\decorator.py", line 48, in wrapper
response = function(request)
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\connexion\decorators\security.py", line 327, in wrapper
return function(request)
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\connexion\decorators\uri_parsing.py", line 144, in wrapper
response = function(request)
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\connexion\decorators\validation.py", line 184, in wrapper
response = function(request)
File "C:\Users\kim\AppData\Local\Programs\Python\Python37\lib\site-packages\connexion\decorators\parameter.py", line 121, in wrapper
return function(**kwargs)
File "C:\Users\kim\codegen_server\openapi_server\controllers\default_controller.py", line 74, in immunomatch_ed_post
body = ImmunomatchEdInput.from_dict(connexion.request.get_json()) # noqa: E501
File "C:\Users\kim\codegen_server\openapi_server\models\immunomatch_ed_input.py", line 62, in from_dict
return util.deserialize_model(dikt, cls)
File "C:\Users\kim\codegen_server\openapi_server\util.py", line 111, in deserialize_model
setattr(instance, attr, _deserialize(value, attr_type))
File "C:\Users\kim\codegen_server\openapi_server\util.py", line 26, in _deserialize
elif type(klass) == typing.GenericMeta:
AttributeError: module 'typing' has no attribute 'GenericMeta'
错误信息说typing模块没有属性'GenericMeta'，我不明白为什么会出现这个错误。有谁能指出为什么会出现这个错误吗？这是因为typing模块版本错误吗？有什么可能的想法可以消除这个错误吗？请帮忙解决问题，谢谢。
更新：我尝试过的代码:
import six
import typing
def _deserialize(data, klass):
"""Deserializes dict, list, str into an object.
:param data: dict, list or str.
:param klass: class literal, or string of class name.
:return: object.
"""
if data is None:
return None
if klass in six.integer_types or klass in (float, str, bool):
return _deserialize_primitive(data, klass)
elif klass == object:
return _deserialize_object(data)
elif klass == datetime.date:
return deserialize_date(data)
elif klass == datetime.datetime:
return deserialize_datetime(data)
elif type(klass) == typing.GenericMeta:
if klass.__extra__ == list:
return _deserialize_list(data, klass.__args__[0])
if klass.__extra__ == dict:
return _deserialize_dict(data, klass.__args__[1])
else:
return deserialize_model(data, klass)
错误信息显示该行代码 elif type(klass) == typing.GenericMeta: 报错，有什么想法吗？