refactor: Replace requests with httpx (#17)

- Update dependencies: requests -> httpx
- Refactor HTTP client code to use httpx

.github/workflows/ci.yml

@@ -34,7 +34,7 @@ jobs:
       - name: Build
         run: |
           poetry run ruff check cozepy
-          poetry run format --check
+          poetry run ruff format --check
           poetry build
       - name: Run tests
         run: poetry run pytest

cozepy/chat/__init__.py

@@ -228,7 +228,7 @@ class ChatEvent(CozeModel):
 
 
 class ChatChatIterator(object):
-    def __init__(self, iters: Iterator[bytes]):
+    def __init__(self, iters: Iterator[str]):
         self._iters = iters
 
     def __iter__(self):
@@ -241,7 +241,7 @@ def __next__(self) -> ChatEvent:
         times = 0
 
         while times < 2:
-            line = next(self._iters).decode("utf-8")
+            line = next(self._iters)
             if line == "":
                 continue
             elif line.startswith("event:"):

cozepy/request.py

@@ -9,8 +9,8 @@
     Iterator,
 )
 
-import requests
-from requests import Response
+import httpx
+from httpx import Response
 
 if TYPE_CHECKING:
     from cozepy.auth import Auth
@@ -48,22 +48,21 @@ def request(
         files: dict = None,
         stream: bool = False,
         data_field: str = "data",
-    ) -> Union[T, List[T], Iterator[bytes]]:
+    ) -> Union[T, List[T], Iterator[str]]:
         """
         Send a request to the server.
         """
         if headers is None:
             headers = {}
         if self._auth:
             self._auth.authentication(headers)
-        r = requests.request(
+        r = httpx.request(
             method,
             url,
             params=params,
             headers=headers,
             json=body,
             files=files,
-            stream=stream,
         )
         if stream:
             return r.iter_lines()

cozepy/workflows/runs/__init__.py

@@ -99,7 +99,7 @@ class WorkflowEvent(CozeModel):
 
 
 class WorkflowEventIterator(object):
-    def __init__(self, iters: Iterator[bytes]):
+    def __init__(self, iters: Iterator[str]):
         self._iters = iters
 
     def __iter__(self):
@@ -113,7 +113,7 @@ def __next__(self) -> WorkflowEvent:
         times = 0
 
         while times < 3:
-            line = next(self._iters).decode("utf-8")
+            line = next(self._iters)
             if line == "":
                 continue
             elif line.startswith("id:"):