Write a program that stores and retrieves student records. When started the program should ask the...

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Write a program that stores and retrieves student records. When started the program should ask the user if they would like to list students or add students. Use any input you'd like to represent these options (though, numbers would probably be best -- i.e. Enter 1 to list students, 2 to add student (3 to exit). Your interface should be robust and re-ask the user for data if they enter invalid data. Use exception handling to do this. If the user chooses to list the students, then read the student data file (students.txt) and display all students. Be sure to protect against issues if the file is missing; if it's missing, simply create a blank file and display that there are currently no students to list. If the user chooses to add a user, then ask the user for a first name, then last name, and then student ID, and finally, current average. Save this information in a textile called students.txt. As students are added, the file should contain information like the following (be sure that each student is represented on one line, with the fields separated by commas). Tim, Smith, 100134, 97.7 John, Doe, 120134, 71.1 Julie, Jones, 103456, 99.1 etc.. NOTE: When writing to the file, you will need to append to the file (ensuring that previous information is not overwritten). Write a program that stores and retrieves student records. When started the program should ask the user if they would like to list students or add students. Use any input you'd like to represent these options (though, numbers would probably be best -- i.e. Enter 1 to list students, 2 to add student (3 to exit). Your interface should be robust and re-ask the user for data if they enter invalid data. Use exception handling to do this. If the user chooses to list the students, then read the student data file (students.txt) and display all students. Be sure to protect against issues if the file is missing; if it's missing, simply create a blank file and display that there are currently no students to list. If the user chooses to add a user, then ask the user for a first name, then last name, and then student ID, and finally, current average. Save this information in a textile called students.txt. As students are added, the file should contain information like the following (be sure that each student is represented on one line, with the fields separated by commas). Tim, Smith, 100134, 97.7 John, Doe, 120134, 71.1 Julie, Jones, 103456, 99.1 etc.. NOTE: When writing to the file, you will need to append to the file (ensuring that previous information is not overwritten).

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Python import os class Student def initself firstname lastname studentid currentaverage selffirstname firstname selflastname lastname selfstudentid studentid selfcurrentaverage currentaverage def list... View the full answer