completed exercise 20-22

21 Fundraiser part 2/exercise-01.py

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+def get_name():
+    collect = True
+    while collect:
+        name = input("Enter the activity: ")
+        if len(name) > 10:
+            print("Name too long. Please try again.")
+            continue
+        else:
+            collect = False
+    return name
+
+def get_amount():
+    collect = True
+    while collect:
+        amount = float(input("Enter activity hourly rate in pence: "))
+        # if less than 99 or greater than 599
+        if amount < 99 or amount > 599:
+            print("Amount out of range. Please try again.")
+            continue
+        else:
+            collect = False
+    return amount
+
+def print_activities(data):
+    print("\nActivity - Amount")
+    print("-" * 15)
+    for activity in data:
+        print(f"{activity[0]} - £{activity[1]/100}")
+
+def get_student_name():
+    """Ask for and return a student's name."""
+    return input("Enter student name: ")
+
+def get_activity_choice(activities):
+    """
+    Show the available activities and ask the user to choose one.
+    Retries until a valid activity name (from the ex20 list) is entered.
+    Returns the chosen activity name as a string.
+    """
+    activity_names = [a[0] for a in activities]
+    collect = True
+    while collect:
+        print("Available activities:", ", ".join(activity_names))
+        choice = input("Enter the activity this student did: ")
+        if choice not in activity_names:
+            print("Not a valid activity. Please try again.")
+            continue
+        else:
+            collect = False
+    return choice
+
+def get_hours():
+    """Ask for the whole number of hours spent on the activity. Retries until valid."""
+    collect = True
+    while collect:
+        hours_input = input("Enter number of hours spent (whole number): ")
+        if not hours_input.isdigit():
+            print("Please enter a whole number.")
+            continue
+        else:
+            collect = False
+    return int(hours_input)
+
+def get_rate_for_activity(activities, activity_name):
+    """Look up the hourly rate (in pence) for a given activity name."""
+    for activity in activities:
+        if activity[0] == activity_name:
+            return activity[1]
+
+def print_students(students):
+    """Print student data in tabular format with column headings."""
+    print("\nStudent Name - Activity - Hours - Total Raised")
+    print("-" * 45)
+    for student in students:
+        name, activity, hours, total = student
+        print(f"{name} - {activity} - {hours} - £{total/100}")
+
+
+def main():
+    # build activities table
+    activities = []
+    run = True
+    while run:
+        activity = get_name()
+        amount = get_amount()
+        activities.append([activity, amount])
+        user_choice = input("Would you like to add another activity? (y/n): ")
+        if user_choice.strip().lower() == "n":
+            run = False
+
+    print_activities(activities)
+
+    # collect student data
+    num_students = int(input("\nHow many students do you want to enter? "))
+
+    students = []
+    for _ in range(num_students):
+        student_name = get_student_name()
+        activity_choice = get_activity_choice(activities)
+        hours = get_hours()
+        rate = get_rate_for_activity(activities, activity_choice)
+        total = hours * rate
+        students.append([student_name, activity_choice, hours, total])
+
+    print_students(students)
+
+
+if __name__ == "__main__":
+    main()

22 Develop the simple game board/exercise-01.py

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+create_grid, print_grid, main = lambda : "  " + " ".join(str(i) for i in range(1, 9)) + "\n" + "\n".join(f"{r+1} " + " ".join("*" if (r, c) == (7, 0) else ("X" if (r+c) % 2 == 0 else "O") for c in range(8)) for r in range(8)), lambda grid : print(grid), lambda: print_grid(create_grid()) ; main()