Update app.py

app.py

@@ -6,10 +6,13 @@ st.title("NLP Theory Blog")
 # Sidebar for navigation
 st.sidebar.title("Navigation")
 pages = ["Introduction to NLP", "NLP Techniques"]
-page = st.sidebar.radio("Go to:", pages)
+
+# Handle query params to set the active page
+query_params = st.experimental_get_query_params()
+current_page = query_params.get("page", ["Introduction to NLP"])[0]
 
 # Content for each page
-if page == "Introduction to NLP":
+if current_page == "Introduction to NLP":
     st.header("What is Natural Language Processing (NLP)?")
     st.write("""
         Natural Language Processing (NLP) is a field of Artificial Intelligence that focuses on the interaction between computers and humans through natural language.
@@ -24,7 +27,7 @@ if page == "Introduction to NLP":
         NLP combines computational linguistics with machine learning and deep learning techniques to process language.
     """)
 
-elif page == "NLP Techniques":
+elif current_page == "NLP Techniques":
     st.header("Common NLP Techniques")
     st.write("""
         NLP involves several techniques for processing and analyzing text and speech data. Here are some key techniques:
@@ -47,14 +50,13 @@ with col1:
     if st.button("Previous Page"):
         if current_page == "NLP Techniques":
             st.experimental_set_query_params(page=pages[0])
-            st.experimental_rerun()  # Forces the app to rerun
+            st.experimental_rerun()
 
 with col2:
     if st.button("Next Page"):
         if current_page == "Introduction to NLP":
             st.experimental_set_query_params(page=pages[1])
-            st.experimental_rerun()  # Forces the app to rerun
-
+            st.experimental_rerun()
 
 # Footer
 st.sidebar.write("---")