from requests import Request
from openapi_core import OpenAPI
from openapi_core.contrib.requests import RequestsOpenAPIRequest

openapi = OpenAPI.from_file_path('api_spec.json')
request = Request('GET', 'https://example.com/status')
openapi_request = RequestsOpenAPIRequest(request)
openapi.validate_request(openapi_request)

---------------------------------------------------------------------------
SpecError                                 Traceback (most recent call last)
Cell In[210], line 8
      6 request = Request('GET', 'https://example.com/status')
      7 openapi_request = RequestsOpenAPIRequest(request)
----> 8 openapi.validate_request(openapi_request)

File ~/opt/anaconda3/envs/ptv/lib/python3.10/site-packages/openapi_core/app.py:347, in OpenAPI.validate_request(self, request)
    345     self.validate_webhook_request(request)
    346 else:
--> 347     self.validate_apicall_request(request)

File [~/opt/anaconda3/envs/ptv/lib/python3.10/site-packages/openapi_core/app.py:360](http://localhost:8888/lab/tree/~/opt/anaconda3/envs/ptv/lib/python3.10/site-packages/openapi_core/app.py#line=359), in OpenAPI.validate_apicall_request(self, request)
    358 if not isinstance(request, Request):
    359     raise TypeError("'request' argument is not type of Request")
--> 360 self.request_validator.validate(request)

File [~/opt/anaconda3/envs/ptv/lib/python3.10/site-packages/openapi_core/app.py:206](http://localhost:8888/lab/tree/~/opt/anaconda3/envs/ptv/lib/python3.10/site-packages/openapi_core/app.py#line=205), in OpenAPI.request_validator(self)
    203 @property
    204 def request_validator(self) -> RequestValidator:
    205     if self.request_validator_cls is None:
--> 206         raise SpecError("Validator class not found")
    207     return self.request_validator_cls(
    208         self.spec,
    209         base_url=self.config.server_base_url,
   (...)
    217         security_provider_factory=self.config.security_provider_factory,
    218     )

SpecError: Validator class not found