'audio_file': ("audio", audio_file, 'audio/wav')

app.py

@@ -25,9 +25,11 @@ def score_audio_plus(password, audio, api_plan, return_json):
     }
     
     # Prepare files and data for POST request
-    files = {
-        'audio_file': (audio.name, audio.file, 'audio/wav')
-    }
+    with open(audio, "rb") as audio_file:
+        files = {
+            'audio_file': ("audio", audio_file, 'audio/wav')
+        }
+    
     data = {
         'api_plan': api_plan,
         'return_json': "true" if return_json else "false"