def _read_instructors(self, path: str) -> None:
"""read each line from file instructors.txt and create instance of class instructor"""
try:
for cwid, name, department in file_reader(
os.path.join(self._path, 'instructors.txt'), 3, "|", True):
self._instructors[cwid] = Instructor(cwid, name, department)
except (FileNotFoundError, ValueError) as e:
print(e)
def _read_major(self, path: str) -> None:
"""read each line from file majors.txt and create instance of class Major"""
try:
for major, flag, course in file_reader(
os.path.join(self._path, 'majors.txt'), 3, "\t", True):
if major not in self._majors.keys():
self._majors[major] = Major(major)
self._majors[major].add_course(major, flag, course)
except (FileNotFoundError, ValueError) as e:
print(e)
def _read_students(self, path: str) -> None:
"""read each line from path/students.txt and create instance of class student"""
try:
for cwid, name, major in file_reader(
os.path.join(self._path, 'students.txt'), 3, ";", True):
if major in self._majors[major]._major:
required = self._majors[major].req_course()
elective = self._majors[major].elec_course()
self._students[cwid] = Student(cwid, name, major, required,
elective)
except (FileNotFoundError, ValueError) as e:
print(e)
def _read_students(self, path: str) -> None:
"""read each line from path/students.txt and create instance of class student"""
try:
for cwid, name, major in file_reader(
os.path.join(self._path, 'students.txt'), 3, "\t", True):
if major in self._majors.keys():
required = self._majors[major].req_course()
elective = self._majors[major].elec_course()
self._students[cwid] = Student(cwid, name, major, required,
elective)
else:
print(
f"Student with Name: {name} and CWID: {cwid} has Unknown Major:{major}"
)
except (FileNotFoundError, ValueError) as e:
print(e)
def _read_grades(self, path: str) -> None:
""" read student_cwid, course, grade, instructor_cwid """
# tell the student about the course and the grade
# look up student associated with student_cwid, reach inside and update the dictionary
try:
for student_cwid, course, grades, instructor_cwid in file_reader(
os.path.join(self._path, 'grades.txt'), 4, "\t", True):
if student_cwid in self._students.keys():
stu: Student = self._students[student_cwid]
stu.store_course_grade(course, grades)
else:
print(
f"The Student with CWID : {student_cwid} is unknown.")
if instructor_cwid in self._instructors.keys():
inst: Instructor = self._instructors[instructor_cwid]
inst.store_course_student(course)
else:
print(
f"The Instructor with CWID : {instructor_cwid} is unknown."
)
except (FileNotFoundError, ValueError) as e:
if FileNotFoundError:
print(e)
def test_file_reader(self):
"""The function tests the file_reader() function."""
calculated: List[tuple] = [('123', 'Jin He', 'Computer Science'),('234', 'Nanda Koka', 'Software Engineering'),('345', 'Benji Cai', 'Software Engineering')]
self.assertNotEqual(list(file_reader("func2_test.txt", 3, '|', False)), calculated)
self.assertEqual(list(file_reader("func2_test.txt", 3, '|', True)), calculated)
self.assertEqual(list(file_reader("func2_test.txt1", 3, '|', False)), ['File Not Found'])