def _get_instructors(self, path):
try:
#Instructor file with CWID, name and department.
for cwid, name, dept in file_read(path, 3, sep='\t', header=False):
#Warning for cwid duplication if present in self._instructors.
if cwid in self._instructors:
print(f' Warning: cwid {cwid} already read from the file')
#Print instructors CWID, name and deptartment.
else:
self._instructors[cwid] = Instructor(cwid, name, dept)
except ValueError as error:
print(error)
def _get_majors(self, path):
try:
for major, course, flag in file_read(path,
3,
sep="\t",
header=False):
if major in self._majors:
self._majors[major].add_course(flag, course)
else:
self._majors[major] = Major(major)
except ValueError as err:
print(err)
def _get_students(self, path):
try:
#Studen file with CWID, name and major.
for cwid, name, major in file_read(path, 3, sep = '\t', header = False):
#Warning for cwid duplication if present in self._students.
if cwid in self._students:
print (f' Warning: cwid {cwid} already read from the file')
#Print student's CWID, name and major.
else:
self._students[cwid] = Student(cwid, name, major)
except ValueError as error:
print(error)
def _get_grades(self, path):
try:
#Grades file with Student CWID, course and grade and also instructor CWID.
for student_cwid, course, grade, instructors_cwid in file_read(path, 4, sep = '\t', header = False):
#Displays students new updated course and grades.
if student_cwid in self._students:
self._students[student_cwid].add_course(course, grade)
else:
#Invalid CWID, not on file.
print (f' Warning: student cwid {student_cwid} is not known in the file')
#Instructor updates students on their respective course and grades.
if instructors_cwid in self._instructors:
self._instructors[instructors_cwid].add_course(course)
else:
print (f' Warning: instructor cwid {instructors_cwid} is not known in the file')
except ValueError as error:
print (error)