Update app.py

app.py

@@ -5,6 +5,9 @@ import pickle
 import tempfile
 from tensorflow.keras.preprocessing.sequence import pad_sequences
 from PIL import Image
+import os
+os.environ['MPLCONFIGDIR'] = '/tmp'
+
 import matplotlib.pyplot as plt
 @st.cache_resource
 def load_captioning_model():