Update app.py

app.py

@@ -83,21 +83,24 @@ def chunking(book_text):
 '''
 '''
 
+_book = test_book[book_index]['book']
+
 #prompts
 st.title("Book Summarization 📚")
 st.write("The almighty king of text generation, GPT-2 comes in four available sizes, only three of which have been publicly made available. Feared for its fake news generation capabilities, it currently stands as the most syntactically coherent model. A direct successor to the original GPT, it reinforces the already established pre-training/fine-tuning killer duo. From the paper: Language Models are Unsupervised Multitask Learners by Alec Radford, Jeffrey Wu, Rewon Child, David Luan, Dario Amodei and Ilya Sutskever.")
 
 book_index = st.sidebar.slider("Select Book Example", value = 0,min_value = 0, max_value=4)
-
-_book = test_book[book_index]['book']
-chunked_segments = chunking(_book)
-
 sent = st.text_area("Text", _book[:512], height = 550)
 max_length = st.sidebar.slider("Max Length", value = 512,min_value = 10, max_value=1024)
 temperature = st.sidebar.slider("Temperature", value = 1.0, min_value = 0.0, max_value=1.0, step=0.05)
 top_k = st.sidebar.slider("Top-k", min_value = 0, max_value=5, value = 0)
 top_p = st.sidebar.slider("Top-p", min_value = 0.0, max_value=1.0, step = 0.05, value = 0.92)
 
+
+chunked_segments = chunking(_book)
+
+
+
 def generate_output(test_samples):
     inputs = tokenizer(
         test_samples,