Update app.py

app.py

@@ -8,7 +8,7 @@ def calculate_distance(org_text, ocr_str):
     ocr_chars = list(ocr_str)
     org_chars = list(org_str)
     cer = Levenshtein.distance(org_chars, ocr_chars) / len(org_chars)
-    return return f"The Character Error Rate (CER): {cer}"
+    return f"The Character Error Rate (CER): {cer}"
 
 iface = gradio.Interface(
     fn=calculate_distance,