Update app.py

app.py

@@ -30,8 +30,11 @@ from piper_phonemize import phonemize_codepoints, phonemize_espeak, tashkeel_run
 
 #_LOGGER = logging.getLogger("piper_train.infer_onnx")
 import os
-if not os.path.exists("/content/piper/src/python/lng"):
-  !cp -r "/content/piper/notebooks/lng" /content/piper/src/python/lng
+    if not os.path.exists("/content/piper/src/python/lng"):
+    import subprocess
+    command = "cp -r /content/piper/notebooks/lng /content/piper/src/python/lng"
+    subprocess.run(command, shell=True)
+
 import sys
 sys.path.append('/content/piper/notebooks')
 import configparser