Update app.py

app.py

@@ -250,25 +250,14 @@ def upload_file_to_mistral(client, path: str, filename: str | None = None, purpo
     fname = filename or os.path.basename(path)
     last_sdk_error = None
 
-    # Try SDK upload (pass file-like only; avoid unsupported kwargs)
+    # Try SDK upload: pass exactly one positional file-like argument
     try:
         if hasattr(client, "files") and hasattr(client.files, "upload"):
             with open(path, "rb") as fh:
-                try:
-                    # Many SDKs accept just the file-like object; adjust if your SDK docs differ
-                    res = client.files.upload(fh)
-                except TypeError:
-                    # Try alternative common shape: single dict arg
-                    try:
-                        res = client.files.upload({"file": fh})
-                    except Exception as e:
-                        raise e
-            # Normalize SDK response to find id
-            fid = None
-            try:
-                fid = getattr(res, "id", None) or (res.get("id") if isinstance(res, dict) else None)
-            except Exception:
-                fid = None
+                # many SDKs expect a single positional file arg
+                res = client.files.upload(fh)
+            # normalize response
+            fid = getattr(res, "id", None) or (res.get("id") if isinstance(res, dict) else None)
             if not fid:
                 try:
                     fid = res["data"][0]["id"]
@@ -281,7 +270,7 @@ def upload_file_to_mistral(client, path: str, filename: str | None = None, purpo
     except Exception as e:
         last_sdk_error = e
 
-    # REST fallback: send multipart to /v1/files
+    # REST fallback: multipart/form-data with field name "file" and purpose in form data
     api_key = getattr(client, "api_key", "") or DEFAULT_KEY
     if not api_key:
         raise RuntimeError("MISTRAL_API_KEY missing or empty")