move import of request lib to when needed so it's not a dependency (#203

)

* move import of request lib to when needed so it's not a dependency

* fixed typo

* google apis seem to be needed for grpc-gateway proto methods

clarifai_grpc/channel/clarifai_channel.py

@@ -1,8 +1,6 @@
 import json
 import os
 
-import requests
-
 from clarifai_grpc.channel.grpc_json_channel import GRPCJSONChannel
 from clarifai_grpc.grpc.api import service_pb2_grpc
 
@@ -52,6 +50,8 @@ def get_json_channel(
 
     @staticmethod
     def _make_requests_session():
+        import requests  # noqa
+
         http_adapter = requests.adapters.HTTPAdapter(
             max_retries=RETRIES, pool_connections=CONNECTIONS, pool_maxsize=CONNECTIONS
         )

clarifai_grpc/channel/grpc_json_channel.py

@@ -3,7 +3,6 @@
 import re
 import typing  # noqa
 
-import requests  # noqa
 from google.protobuf.descriptor import Descriptor  # noqa
 from google.protobuf.message import Message  # noqa
 
@@ -43,7 +42,7 @@ class GRPCJSONChannel(object):
 
     def __init__(
         self,
-        session: requests.Session,
+        session,  # type: requests.Session,
         base_url: str = BASE_URL,
         service_descriptor: typing.Any = _V2,
     ) -> None:

requirements.txt

@@ -2,4 +2,3 @@ googleapis-common-protos>=1.57.0
 grpcio>=1.53.2 ; python_version<'3.13'
 grpcio>=1.68.0 ; python_version>='3.13'
 protobuf==3.20.3
-requests>=2.28.1

tests/requirements.txt

@@ -2,3 +2,4 @@ autoflake==1.4
 black==22.3.0
 pytest==6.2.2
 pytest-xdist==2.2.1
+requests==2.28.1