Create app.py

app.py

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+
+import streamlit as st
+from datetime import datetime
+
+# Application title
+st.set_page_config(page_title="To-Do Notebook", page_icon="📝", layout="centered")
+
+# App header
+st.title("📝 To-Do Notebook")
+st.subheader("Organize your tasks with ease!")
+
+# App description
+st.write("Add your tasks, check them off, and delete them when you're done.")
+
+# Initialize task list in the session state
+if "tasks" not in st.session_state:
+    st.session_state.tasks = []
+
+# Function to add a task
+def add_task(task_name, priority, deadline):
+    if task_name:
+        st.session_state.tasks.append({
+            "task": task_name,
+            "priority": priority,
+            "deadline": deadline,
+            "completed": False
+        })
+        st.success(f"Task '{task_name}' added!")
+
+# Function to toggle task completion
+def toggle_completion(index):
+    st.session_state.tasks[index]["completed"] = not st.session_state.tasks[index]["completed"]
+
+# Function to delete a task
+def delete_task(index):
+    st.session_state.tasks.pop(index)
+    st.success("Task deleted!")
+
+# Add task section
+with st.expander("➕ Add a New Task"):
+    task_name = st.text_input("Task Name", placeholder="Enter task here...")
+    priority = st.selectbox("Priority", ["Low", "Medium", "High"])
+    deadline = st.date_input("Deadline")
+    if st.button("Add Task"):
+        add_task(task_name, priority, deadline)
+
+# Show tasks
+if st.session_state.tasks:
+    st.subheader("📋 Your Tasks")
+    for i, task in enumerate(st.session_state.tasks):
+        col1, col2, col3 = st.columns([5, 2, 1])
+
+        # Display task with checkbox
+        with col1:
+            st.checkbox(
+                f"({task['priority']}) {task['task']} - Due: {task['deadline']}",
+                value=task["completed"],
+                on_change=toggle_completion,
+                args=(i,)
+            )
+        # Delete button
+        with col3:
+            if st.button("🗑️", key=f"delete_{i}"):
+                delete_task(i)
+else:
+    st.info("You have no tasks. Add a new task to get started!")
+
+# Footer
+st.write("---")
+st.write("✨ Made with ❤️ using Streamlit")
+
+# Run Streamlit locally or deploy
+!streamlit run app.py