Fix failing imports from httpcore (#5891)

Refactor `test_rigetti_qcs_service_api_call()` to use public API from httpx instead
of private API from httpcore which changed.

Also require pyquil>=3.2.0 to ensure httpx and httpcore include API change at httpcore==0.14.0,
encode/httpcore@f9b9391.

Note: pyquil creates indirect dependency on httpcore as follows:

- pyquil (==3.2.0) requires qcs-api-client (>=0.20.13,<0.22.0)
- qcs-api-client (==0.21.2) requires httpx (>=0.23.0,<0.24.0)
- httpx (==0.23.0) requires httpcore (>=0.15.0,<0.16.0)

Author: pavoljuhas

cirq-rigetti/cirq_rigetti/service_test.py

@@ -1,9 +1,7 @@
 # pylint: disable=wrong-or-nonexistent-copyright-notice
-from typing import Iterator
+from typing import Optional, Iterator
 import pytest
 import httpx
-import httpcore
-from httpcore._types import URL, Headers
 from cirq_rigetti import get_rigetti_qcs_service, RigettiQCSService
 
 
@@ -20,20 +18,13 @@ def test_rigetti_qcs_service_api_call():
     """test that `RigettiQCSService` will use a custom defined client when the
     user specifies one to make an API call."""
 
-    class Response(httpcore.SyncByteStream):
-        def __iter__(self) -> Iterator[bytes]:
+    class Response(httpx.Response):
+        def iter_bytes(self, chunk_size: Optional[int] = None) -> Iterator[bytes]:
             yield b"{\"quantumProcessors\": [{\"id\": \"Aspen-8\"}]}"  # pragma: nocover
 
-    class Transport(httpcore.SyncHTTPTransport):
-        def request(
-            self,
-            method: bytes,
-            url: URL,
-            headers: Headers = None,
-            stream: httpcore.SyncByteStream = None,
-            ext: dict = None,
-        ):
-            return 200, [('Content-Type', 'application/json')], Response(), {}
+    class Transport(httpx.BaseTransport):
+        def handle_request(self, request: httpx.Request) -> httpx.Response:
+            return Response(200)
 
     client = httpx.Client(base_url="https://mock.api.qcs.rigetti.com", transport=Transport())
 

cirq-rigetti/requirements.txt

@@ -1 +1 @@
-pyquil>=3.0.0
+pyquil>=3.2.0