Merge pull request #17 from stainless-sdks/hao/sdk-2788-python-fix-unicode-encoding-error-during-file-upload-process

fix: allow utf-8 encoded filename in headers

Author: ms-jpq

src/writerai/_base_client.py

@@ -435,7 +435,7 @@ def _build_headers(self, options: FinalRequestOptions, *, retries_taken: int = 0
         self._validate_headers(headers_dict, custom_headers)
 
         # headers are case-insensitive while dictionaries are not.
-        headers = httpx.Headers(headers_dict)
+        headers = httpx.Headers(headers_dict, encoding="utf-8")
 
         idempotency_header = self._idempotency_header
         if idempotency_header and options.idempotency_key and idempotency_header not in headers: