student_management_cli.py

def add_std():
    print()
    print("-----------------------------------")
    roll_number= input("Enter roll number: ")
    name_student= input("Enter name: ")
    subj= input("Enter subject name: ")
    grade= input("Grade: ")
    record={
        "Roll Number": roll_number,
        "Name": name_student,
        "Subject": subj,
        "Grade": grade
    }
    student.append(record)
    print("------------------------------------")
    print()

def dis_std():
    print()
    print("-----------------------------------")
    for i in student:
        print("Roll Number:",i["Roll Number"])
        print("Name of student:",i["Name"])
        print("Subject:",i["Subject"])
        print("Grade:",i["Grade"])
    print("-----------------------------------")
    print()

def search_std():
    found= False
    print()
    print("--------------------------------------")
    user_rollnumber=input("Enter roll number: ")
    for j in student:
        if user_rollnumber==j["Roll Number"]:
            found=True
            print("Roll Number:",j["Roll Number"])
            print("Name of student:",j["Name"])
            print("Subject:",j["Subject"])
            print("Grade:",j["Grade"])
            print("-----------------------------------")
            print()
            break
    if found==False:
        print()
        print("-------------------------------")
        print("Student not found")

student = []
while True:
    print("1. Add student")
    print("2. Display students")
    print("3. Search student")
    print("0. Exit")
    value= int(input("Enter your choice: "))
    print("------------------------------------------")
    print()

    if value==1:
        add_std()
    
    elif value==2:
        dis_std()
    
    elif value==3:
        search_std()
    
    elif value==0:
        break

    else:
        print()
        print("---------------------------------------")
        print("Invalid input")
        print("---------------------------------------")
        print()