Please express your answer in python and wit detailed comments. Thank youuuu :)

Notes: You should only use functionality covered in CS115 in your solution. Your solution for this lab should not use lists, tuples, dictionaries. Do NOT use the string split() function. Include a docstring for your functions. 1. Download the files courses.txt, students.txt. 2. Create a module, course_info.py that contains the following functions: a. getmonedet) : takes a string grade as a parameter, and returns the float grade points for the given grade. Example: A -> returns 4.0. b. finchid2: takes a string file name and a student name as parameters. Returns the id of the student with the given name. If no student is found, returns -99. The student name is not case sensitive. c. finduqueses! : takes a file name and a student id, and semester as parameters. Returns the average grade points, and string set of courses for the student with the given id, for the given semester. If no courses are found, average will be zero and the (string) courses will be an empty string. 3. Write a script, yourname_student_app.py that inputs the name of a student and a semester from the user. Using functionality defined in the module, your program should display the courses taken by the student and the average grade of the student for the given semester. If student/courses are not found, display a meaningful message (see sample run below). Write the student id and average grade to a file with the name .txt. The program should keep inputting student names/semesters and searching courses until the user inputs 'exit' for the student name to quit (not case sensitive). 4. Upload course_info.py and yourname_student_app.py in a zip file with the name: Lab04_yourname.zip. Sample Runs: Enter student name to search Iquit to exit): Kaan Batan Enter semester: Fall 2020 Course Summary: ENG101 MATH102 Average Grade Fall 2020: 3.85 Enter student name to search (quit to exit): Selin Yetis Enter semester: Fall 2020 Courses Not Found! Enter student name to search (quit to exit): Hande Oral Enter semester: Spring 2020 Student Not Found! Enter student name to search Iquit to exit): quit Notes: You should only use functionality covered in CS115 in your solution. Your solution for this lab should not use lists, tuples, dictionaries. Do NOT use the string split() function. Include a docstring for your functions. 1. Download the files courses.txt, students.txt. 2. Create a module, course_info.py that contains the following functions: a. getmonedet) : takes a string grade as a parameter, and returns the float grade points for the given grade. Example: A -> returns 4.0. b. finchid2: takes a string file name and a student name as parameters. Returns the id of the student with the given name. If no student is found, returns -99. The student name is not case sensitive. c. finduqueses! : takes a file name and a student id, and semester as parameters. Returns the average grade points, and string set of courses for the student with the given id, for the given semester. If no courses are found, average will be zero and the (string) courses will be an empty string. 3. Write a script, yourname_student_app.py that inputs the name of a student and a semester from the user. Using functionality defined in the module, your program should display the courses taken by the student and the average grade of the student for the given semester. If student/courses are not found, display a meaningful message (see sample run below). Write the student id and average grade to a file with the name .txt. The program should keep inputting student names/semesters and searching courses until the user inputs 'exit' for the student name to quit (not case sensitive). 4. Upload course_info.py and yourname_student_app.py in a zip file with the name: Lab04_yourname.zip. Sample Runs: Enter student name to search Iquit to exit): Kaan Batan Enter semester: Fall 2020 Course Summary: ENG101 MATH102 Average Grade Fall 2020: 3.85 Enter student name to search (quit to exit): Selin Yetis Enter semester: Fall 2020 Courses Not Found! Enter student name to search (quit to exit): Hande Oral Enter semester: Spring 2020 Student Not Found! Enter student name to search Iquit to exit): quit