From 5aaf5977418d0052a4a22c768fb9b92970f0184b Mon Sep 17 00:00:00 2001
From: Zayzafoun-Hala <hala.zayzafoun@gmail.com>
Date: Wed, 30 Apr 2025 00:06:21 +0200
Subject: [PATCH] Create Hala_week3_solution.py

---
 Hala_week3_solution.py | 117 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 Hala_week3_solution.py

diff --git a/Hala_week3_solution.py b/Hala_week3_solution.py
new file mode 100644
index 0000000..ed4e885
--- /dev/null
+++ b/Hala_week3_solution.py
@@ -0,0 +1,117 @@
+import itertools
+
+# Tasks will be stored in a list; each task is a dictionary
+sequence_counter = itertools.count(1)
+
+tasks = [
+    {
+        "sequence_number": next(sequence_counter),
+        "task_name": "Task 1",
+        "status": "Completed"
+    },
+    {
+        "sequence_number": next(sequence_counter),
+        "task_name": "Task 2",
+        "status": "Pending"
+    },
+    {
+        "sequence_number": next(sequence_counter),
+        "task_name": "Task 3",
+        "status": "Deleted"
+    }
+]
+
+# Add a new task
+def add_task(task_name, status):
+    status = status.capitalize()
+    if status not in ["Completed", "Pending", "Deleted"]:
+        print("Invalid status. Please use Completed, Pending, or Deleted.")
+        return
+
+    seq_num = next(sequence_counter)
+    task = {
+        "sequence_number": seq_num,
+        "task_name": task_name,
+        "status": status
+    }
+    tasks.append(task)
+    print(f"Task number {seq_num}: '{task_name}' added with status '{status}'.")
+
+# Complete a task
+def complete_task(task_name):
+    for task in tasks:
+        if task["task_name"] == task_name and task["status"] == "Pending":
+            task["status"] = "Completed"
+            print(f"Task '{task_name}' marked as completed.")
+            return
+    print(f"Task '{task_name}' not found or not pending.")
+
+# Delete a task
+def delete_task(task_name):
+    for task in tasks:
+        if task["task_name"] == task_name and task["status"] != "Deleted":
+            task["status"] = "Deleted"
+            tasks.remove(task)
+            print(f"Task '{task_name}' marked as deleted.")
+            return
+    print(f"Task '{task_name}' not found or already deleted.")
+
+# List completed tasks
+def list_completed_tasks():
+    completed_tasks = [task for task in tasks if task["status"] == "Completed"]
+    if completed_tasks:
+        print("Completed tasks:")
+        for task in completed_tasks:
+            print(f"Seq {task['sequence_number']}: {task['task_name']}")
+    else:
+        print("No completed tasks found.")
+
+# List all tasks
+def list_all_tasks():
+    if tasks:
+        print("All tasks:")
+        for task in sorted(tasks, key=lambda t: t["sequence_number"]):
+            print(f"Seq {task['sequence_number']}: {task['task_name']} [{task['status']}]")
+    else:
+        print("No tasks available.")
+
+# Exit function
+def exit_program():
+    print("Exiting the program.")
+    return False
+
+# Main program loop
+def main():
+    while True:
+        print("\nMenu:")
+        print("1. Add a new task")
+        print("2. Complete a task")
+        print("3. Delete a task")
+        print("4. List completed tasks")
+        print("5. List all tasks")
+        print("6. Exit")
+
+        choice = input("Enter your choice (1-6): ")
+
+        if choice == "1":
+            task_name = input("Enter the task name: ")
+            status = input("Enter the status (Completed/Pending/Deleted): ")
+            add_task(task_name, status)
+        elif choice == "2":
+            task_name = input("Enter the task name to mark as completed: ")
+            complete_task(task_name)
+        elif choice == "3":
+            task_name = input("Enter the task name to delete: ")
+            delete_task(task_name)
+        elif choice == "4":
+            list_completed_tasks()
+        elif choice == "5":
+            list_all_tasks()
+        elif choice == "6":
+            if not exit_program():
+                break
+        else:
+            print("Invalid choice. Please try again.")
+
+# Run the program
+main()