def load_grade(self, path: str) -> None:
fp_g: Iterator[Tuple[str]] = file_reader(path,
4,
sep='\t',
header=True)
student_cwid: int
course: str
letter_grade: str
instructor_cwid: int
try:
for student_cwid, course, letter_grade, instructor_cwid in fp_g:
if student_cwid not in self.students:
raise ValueError(
f"There's a unknown student with CWID: {student_cwid}")
if instructor_cwid not in self.instructors:
raise ValueError(
f"There's a grade from unknown instructor: {instructor_cwid}"
)
self.students[student_cwid].add_courses(course, letter_grade)
self.instructors[instructor_cwid].add_student(course)
except FileNotFoundError as err:
print(err)
except ValueError as err:
print(err)
def load_instructor(self, path: str) -> None:
fp_i: Iterator[Tuple[str]] = file_reader(path, 3, sep='|', header=True)
CWID: int
name: str
dpt: str
try:
for CWID, name, dpt in fp_i:
if CWID in self.instructors:
print('Duplicated instructor.')
else:
self.instructors[CWID] = Instructor(CWID, name, dpt)
except FileNotFoundError as err:
print(err)
except ValueError as err:
print(err)
def load_majors(self, path) -> None:
fp_m: Iterator[Tuple[str]] = file_reader(path,
3,
sep='\t',
header=True)
dept: str
flag: str
course: str
try:
for dept, flag, course in fp_m:
if dept not in self.majors.keys():
self.majors[dept] = Major(dept)
self.majors[dept].add_course(flag, course)
except ValueError as err:
print(err)
except FileNotFoundError as err:
print(err)
def load_student(self, path: str) -> None:
fp_s: Iterator[Tuple[str]] = file_reader(path, 3, sep=';', header=True)
CWID: int
name: str
major_name: str
try:
for CWID, name, major_name in fp_s:
if CWID in self.students:
print('Duplicated student.')
elif major_name not in self.majors:
print(f"{CWID}: {name} has a unknown major {major_name}")
else:
major: Major = self.majors[major_name]
self.students[CWID] = Student(CWID, name, major, {}, 0)
except FileNotFoundError as err:
print(err)
# sys.exit(1)
except ValueError as err:
print(err)