Fall back on env variable when api_key=None

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "cohere"
-version = "5.0.1"
+version = "5.0.2"
 description = ""
 readme = "README.md"
 authors = []

src/cohere/client.py

@@ -59,14 +59,17 @@ def fn(*args, **kwargs):
 class Client(BaseCohere):
     def __init__(
             self,
-            api_key: typing.Optional[typing.Union[str, typing.Callable[[], str]]] = os.getenv("CO_API_KEY"),
+            api_key: typing.Optional[typing.Union[str, typing.Callable[[], str]]] = None,
             *,
             base_url: typing.Optional[str] = os.getenv("CO_API_URL"),
             environment: ClientEnvironment = ClientEnvironment.PRODUCTION,
             client_name: typing.Optional[str] = None,
             timeout: typing.Optional[float] = 60,
             httpx_client: typing.Optional[httpx.Client] = None,
     ):
+        if api_key is None:
+            api_key = os.getenv("CO_API_KEY")
+
         BaseCohere.__init__(
             self,
             base_url=base_url,
@@ -130,14 +133,17 @@ def __init__(
 class AsyncClient(AsyncBaseCohere):
     def __init__(
             self,
-            api_key: typing.Optional[typing.Union[str, typing.Callable[[], str]]] = os.getenv("CO_API_KEY"),
+            api_key: typing.Optional[typing.Union[str, typing.Callable[[], str]]] = None,
             *,
             base_url: typing.Optional[str] = os.getenv("CO_API_URL"),
             environment: ClientEnvironment = ClientEnvironment.PRODUCTION,
             client_name: typing.Optional[str] = None,
             timeout: typing.Optional[float] = 60,
             httpx_client: typing.Optional[httpx.AsyncClient] = None,
     ):
+        if api_key is None:
+            api_key = os.getenv("CO_API_KEY")
+
         AsyncBaseCohere.__init__(
             self,
             base_url=base_url,

src/cohere/core/client_wrapper.py

@@ -23,7 +23,7 @@ def get_headers(self) -> typing.Dict[str, str]:
         headers: typing.Dict[str, str] = {
             "X-Fern-Language": "Python",
             "X-Fern-SDK-Name": "cohere",
-            "X-Fern-SDK-Version": "5.0.1",
+            "X-Fern-SDK-Version": "5.0.2",
         }
         if self._client_name is not None:
             headers["X-Client-Name"] = self._client_name

tests/test_async_client.py

@@ -15,6 +15,10 @@ class TestClient(unittest.IsolatedAsyncioTestCase):
     def setUp(self) -> None:
         self.co = cohere.AsyncClient(timeout=10000)
 
+    async def test_token_falls_back_on_env_variable(self) -> None:
+        cohere.AsyncClient(api_key=None)
+        cohere.AsyncClient(None)
+
     async def test_chat(self) -> None:
         chat = await self.co.chat(
             chat_history=[

tests/test_client.py

@@ -13,6 +13,10 @@
 
 class TestClient(unittest.TestCase):
 
+    def test_token_falls_back_on_env_variable(self) -> None:
+        cohere.Client(api_key=None)
+        cohere.Client(None)
+
     def test_chat(self) -> None:
         chat = co.chat(
             chat_history=[