def toCSVself rightarrow str pre none post returns a string

def toCSV(self) rightarrow str: \"\"\" pre: none post: returns a string with the attributes of the course separated by a comma in the order: semester, year, department, number, instructor, credits, grade for example: Fall, 2616, CS, 160, Reed, 3.0, A \"\"\" @classmethod def fromCSV(cls, csv;, Str) rightarrow \'Course\': \"\"\":param csv: a string in the format returned by the toCSV method:return: a Course object example call: c = Course. fromCSV(\"Fall, 2016, CS, 160, Reed, 3.0, A\") \"\"\" c = Course.fromCSV(smm)

class Course:
\"\"\" \"\"\"

# ------------------------------------------------------------------

def __init__(self, semester: str, year: int, department: str, number: int, instructor: str, credits: float, grade: str):

\"\"\"
pre: none

        :param semester: a string that is either Fall or Spring
        :param year: a four digit integer representing the year
        :param department: a string representing the department
        :param number: an integer that is the course number
        :param instructor: a string
        :param credits: a floating point value indicating number of credits
        :param grade: a letter grade one of: A, A-, B+, B, B-, C+, C, C-, D+, D, F
        \"\"\"
        \"\"\"
        pre: none

post: constructs course object with specified parameters\"\"\"

        self.semester = semester
        self.year = int(year)
        self.department = department
        self.number = int(number)
        self.instructor = instructor
        self.credits = float(credits)
        self.grade = grade

# ------------------------------------------------------------------

def __str__(self):

\"\"\"
pre: none

        post: returns a string representation of the Course with each attribute separated by a space in the order:
        semester, year, department, number, instructor, credits, grade
        for example:
        Fall 2016 CS 160 Reed 3.0 A
        \"\"\"

return self.semester + \" \" + str(self.year) + \" \" + self.department + \" \" + str(self.number) + \" \" + self.instructor + \" \" + str(self.credits) + \" \" + self.grade

# ------------------------------------------------------------------

def toCSV(self) -> str:

\"\"\"
pre: none

        post: returns a string with the attributes of the course separated by a comma in th order:
        semester, year, department, number, instructor, credits, grade
        for example:
        Fall,2016,CS,160,Reed,3.0,A
        \"\"\"

return self.semester + \",\" + str(self.year) + \",\" + self.department + \",\" + str(self.number) + \",\" + self.instructor + \",\" + str(self.credits) + \",\" + self.grade

# ------------------------------------------------------------------

@classmethod
def fromCSV(cls, csv: str) -> \'Course\':

        \"\"\"
        :param csv: a string in the format returned by the toCSV method
        :return: a Course object

        example call:
        c = Course.fromCSV(\"Fall,2016,CS,160,Reed,3.0,A\")
        \"\"\"

course = csv.split(\",\")
newCourse = Course(course[0], int(course[1]), course[2], int(course[3]), course[4], float(course[5]), course[6])

return newCourse

# ------------------------------------------------------------------

$def toCSV(self) rightarrow str: \$