(fix) 'utf-8' codec can't encode characters error on OpenAI

pyproject.toml

@@ -17,7 +17,8 @@ documentation = "https://docs.litellm.ai"
 
 [tool.poetry.dependencies]
 python = ">=3.8.1,<4.0, !=3.9.7"
-openai = ">=1.54.0"
+httpx = ">=0.23.0,<0.28.0"
+openai = ">=1.55.3"
 python-dotenv = ">=0.2.0"
 tiktoken = ">=0.7.0"
 importlib-metadata = ">=6.8.0"

requirements.txt

@@ -1,5 +1,6 @@
 # LITELLM PROXY DEPENDENCIES #
 anyio==4.4.0 # openai + http req.
+httpx==0.27.0 # Pin Httpx dependency
 openai==1.55.3  # openai req. 
 fastapi==0.111.0 # server dep
 backoff==2.2.1 # server dep

tests/llm_translation/base_llm_unit_tests.py

@@ -63,6 +63,20 @@
         response = litellm.completion(**base_completion_call_args, messages=messages)
         assert response is not None
 
+    def test_multilingual_requests(self):
+        """
+        Tests that the provider can handle multilingual requests and invalid utf-8 sequences
+
+        Context: https://github.com/openai/openai-python/issues/1921
+        """
+        base_completion_call_args = self.get_base_completion_call_args()
+        response = litellm.completion(
+            **base_completion_call_args,
+            messages=[{"role": "user", "content": "你好世界！\ud83e, ö"}],
+        )
+        print("multilingual response: ", response)
+        assert response is not None
+
     @pytest.mark.parametrize(
         "response_format",
         [

tests/llm_translation/test_openai.py

@@ -15,6 +15,7 @@
 
 import litellm
 from litellm import Choices, Message, ModelResponse
+from base_llm_unit_tests import BaseLLMChatTest
 
 
 def test_openai_prediction_param():
@@ -268,3 +269,12 @@ async def test_vision_with_custom_model():
         ]
         assert request_body["model"] == "my-custom-model"
         assert request_body["max_tokens"] == 10
+
+
+class TestOpenAIChatCompletion(BaseLLMChatTest):
+    def get_base_completion_call_args(self) -> dict:
+        return {"model": "gpt-4o-mini"}
+
+    def test_tool_call_no_arguments(self, tool_call_no_arguments):
+        """Test that tool calls with no arguments is translated correctly. Relevant issue: https://github.com/BerriAI/litellm/issues/6833"""
+        pass