Update app.py

app.py

@@ -574,11 +574,11 @@ def synthandreturn(text):
     thread2.join()
     #debug
     print(results)
-    print(results.keys()[0])
-    y, sr = librosa.load(results[results.keys()[0]], sr=None)
+    print(list(results.keys())[0])
+    y, sr = librosa.load(results[list(results.keys())[0]], sr=None)
     print(sr)
-    print(results.keys()[1])
-    y, sr = librosa.load(results[results.keys()[1]], sr=None)
+    print(list(results.keys())[1])
+    y, sr = librosa.load(results[list(results.keys())[1]], sr=None)
     print(sr)
     #debug
     return (