testdict (1).py

"""def create_student():
    student_data = {}
    
    roll_no = input("Enter Roll No: ")
    name = input("Enter Name: ")
    marks = float(input("Enter Marks: "))
    grade = input("Enter Grade: ")
    
    student_data['roll_no'] = roll_no
    student_data['name'] = name
    student_data['marks'] = marks
    student_data['grade'] = grade
    
    return student_data

def main():
    num_students = int(input("Enter the number of students: "))
    student_records = {}

    for i in range(num_students):
        student = create_student()
        student_records[f'Student{i+1}'] = student

    print("\nStudent Records:")
    for student, data in student_records.items():
        print(f"{student}: {data}")

if __name__ == "__main__":
    main()
"""
"""n = int(input("Enter the number : "))

stud_data = {}
stud_records = {}

for i in range(n+1):
    stud_records[i] = stud_data
    for j in range(i):
        roll_no = input("Enter Roll No: ")
        name = input("Enter Name: ")
        marks = float(input("Enter Marks: "))
        grade = input("Enter Grade: ")


        stud_data['roll_no'] = roll_no
        stud_data['marks'] = marks
        stud_data['name'] = name
        stud_data['grade'] = grade

for student , data in stud_records.items():
        print(f"Student{student}: DATA:{data} ")"""


""" Get user input for the number of key-value pairs"""
num_pairs = int(input("Enter the number of key-value pairs: "))

    # Initialize an empty dictionary
dynamic_dict = {}

    # Loop to populate the dictionary with user input
for i in range(num_pairs):
    key = input(f"Enter key {i + 1}: ")
    roll_no = int(input(f'Enter roll no for student {i + 1}: '))
    name = input(f'Enter name for student {i + 1}: ')
    marks = int(input(f'Enter marks for student {i + 1}: '))
    grade = ''
    if 90 < marks <= 100:
        grade = "A"
    elif 80 < marks <= 90:
        grade = "B"
    elif 60 < marks <= 80:
        grade = "C"
    elif 40 <= marks <= 60:
        grade = "D"
    elif 0 <= marks < 40:
        grade = "FAIL"
    else:
        print("Invalid Marks")
    grades = grade

    dynamic_dicts = {
        'roll_no': roll_no,
        'name': name,
        'marks': marks,
        'grade': grades,
        }
    dynamic_dict[key] = dynamic_dicts

    # Display the dynamically created dictionary
print("Dynamically created dictionary:")
print(dynamic_dict)

update = input("Enter 'yes' to update student's marks or enter 'no': ")
if update == 'yes':
    student_to_update = input("Enter the name of the student whose marks you want to edit: ")
    if student_to_update in dynamic_dicts:
      new_marks = int(input("Enter new marks for updatation: "))
      if 90 < new_marks <= 100:
        grade = "A"
      elif 80 < new_marks <= 90:
        grade = "B"
      elif 60 < new_marks <= 80:
        grade = "C"
      elif 40 <= new_marks <= 60:
        grade = "D"
      elif 0 <= new_marks < 40:
        grade = "FAIL"
      else:
        print("Invalid Marks")
      grades = grade
      dynamic_dict[student_to_update]['marks'] = new_marks
      dynamic_dict[student_to_update]['grade'] = grades
    else:
     print("Student not found")

for key, data in dynamic_dict.items():
    print(f"{key} : {data}")