Python program to sort and find the data in the student records

29 May, 2021
Consider a software for maintaining records of the students in a class. Consider the following functions which are required to be performed:
Sorting of names according to First Name of the students.Finding the Minimum marks among all the marksFinding contact number of student using his/her First Name.
Sorting of names according to First Name of the students.
Finding the Minimum marks among all the marks
Finding contact number of student using his/her First Name.
The task is to write a Python program to implement the software having these three functionalities.
Approach: For the above problem we should use a dictionary that either takes a name as a whole to key and other data as value to it or vice versa. Here I have taken the name as a key and contact number, marks as the value associated with the name. So at first the user needs to enter the details of the students and these details will be stored in dictionary as {[‘first name’, ‘second name’]:(‘contact number’, ‘marks’)}. Then we create a new list of tuples that store data according to the function requirement. In the program four user-defined functions have been created:
sort( ) function that sorts the record based on the first name.minmarks( ) function that finds the minimum marks from all records.searchdetail( ) function that takes first name as an input and fetch student contact number from the corresponding record.option() function for showing the options.
sort( ) function that sorts the record based on the first name.
minmarks( ) function that finds the minimum marks from all records.
searchdetail( ) function that takes first name as an input and fetch student contact number from the corresponding record.
option() function for showing the options.
Below is the implementation:
Python3
print("-----Program for Student Information-----") D = dict() n = int(input('How many student record you want to store?? ')) # Add student information# to the dictionaryfor i in range(0,n):    x, y = input("Enter the complete name (First and last name) of student: ").split()    z = input("Enter contact number: ")    m = input('Enter Marks: ')    D[x, y] = (z, m)     # define a function for shorting# names based on first namedef sort():    ls = list()    # fetch key and value using    # items() method    for sname,details in D.items():               # store key parts as an tuple        tup = (sname[0],sname[1])                 # add tuple to the list        ls.append(tup)                # sort the final list of tuples    ls = sorted(ls)       for i in ls:               # print first name and second name        print(i[0],i[1])    return   # define a function for# finding the minimum marks# in stored datadef minmarks():    ls = list()    # fetch key and value using    # items() methods    for sname,details in D.items():        # add details second element        # (marks) to the list        ls.append(details[1])            # sort the list elemnts       ls = sorted(ls)       print("Minimum marks: ", min(ls))         return   # define a function for searching# student contact numberdef searchdetail(fname):    ls = list()         for sname,details in D.items():               tup=(sname,details)        ls.append(tup)             for i in ls:        if i[0][0] == fname:            print(i[1][0])    return   # define a function for# asking the optionsdef option():       choice = int(input('Enter the operation detail: \n \    1: Sorting using first name \n \    2: Finding Minimum marks \n \    3: Search contact number using first name: \n \    4: Exit\n \    Option: '))         if choice == 1:        # function call        sort()        print('Want to perform some other operation??? Y or N: ')        inp = input()        if inp == 'Y':            option()                     # exit function call           exit()             elif choice == 2:        minmarks()        print('Want to perform some other operation??? Y or N: ')                 inp = input()        if inp == 'Y':            option()        exit()             elif choice == 3:        first = input('Enter first name of student: ')        searchdetail(first)                 print('Want to perform some other operation??? Y or N: ')        inp = input()        if inp == 'Y':            option()                     exit()    else:        print('Thanks for executing me!!!!')        exit()         option()
Output:
-----Program for Student Information-----
How many student record you want to store?? 3
Enter the complete name (First and last name) of student: shubham shukla
Enter contact number: 1234567890
Enter Marks: 85
Enter the complete name (First and last name) of student: rinki singh
Enter contact number: 0987654321
Enter Marks: 50
Enter the complete name (First and last name) of student: abhishek sharma
Enter contact number: 5432167890
Enter Marks: 65
Enter the operation detail: 
     1: Sorting using first name 
     2: Finding Minimum marks 
     3: Search contact number using first name: 
     4: Exit
     Option: 1
abhishek sharma
rinki singh
shubham shukla
Want to perform some other operation??? Y or N: 
Y
Enter the operation detail: 
     1: Sorting using first name 
     2: Finding Minimum marks 
     3: Search contact number using first name: 
     4: Exit
     Option: 2
Minimum marks:  50
Want to perform some other operation??? Y or N: 
Y
Enter the operation detail: 
     1: Sorting using first name 
     2: Finding Minimum marks 
     3: Search contact number using first name: 
     4: Exit
     Option: 3
Enter first name of student: rinki
0987654321
Want to perform some other operation??? Y or N: 
N
ruhelaa48
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