Create app.py

app.py

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+import streamlit as st
+import pandas as pd
+
+# App title
+st.title("Semester Timetable App")
+
+# Sidebar input
+st.sidebar.header("Configure Your Timetable")
+days = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]
+time_slots = [f"{hour}:00 - {hour+1}:00" for hour in range(8, 18)]  # 8 AM to 6 PM
+
+# Default timetable
+if "timetable" not in st.session_state:
+    st.session_state.timetable = pd.DataFrame("", index=days, columns=time_slots)
+
+# Editable timetable
+st.write("### Weekly Timetable")
+edited_timetable = st.experimental_data_editor(
+    st.session_state.timetable, 
+    num_rows="dynamic", 
+    use_container_width=True
+)
+
+# Save updates
+if st.button("Save Timetable"):
+    st.session_state.timetable = edited_timetable
+    st.success("Timetable saved!")
+
+# Export timetable
+st.download_button(
+    "Download Timetable (CSV)",
+    data=st.session_state.timetable.to_csv(),
+    file_name="timetable.csv",
+    mime="text/csv"
+)