def _get_instructors(self, path: str) -> None:
"""read instructors data from file using file_reader into the container
"""
try:
instructors_data: Iterator(Tuple[str]) = file_reader(path,
3,
sep="\t",
header=True)
for cwid, name, department in instructors_data:
self._instructors_dict[cwid] = Instructor(
cwid, name, department)
except ValueError as v:
print(v)
def _get_majors(self, path: str) -> None:
"""read majors data from file using file_reader into the container"""
try:
majors_data: Iterator(Tuple[str]) = file_reader(path,
3,
sep="\t",
header=True)
for major, flag, course in majors_data:
if major not in self._majors_dict:
self._majors_dict[major] = Major(major)
self._majors_dict[major].add_course(course, flag)
except ValueError as v:
print(v)
def _get_students(self, path: str) -> None:
"""read students data from file into the container"""
try:
students_data: Iterator(Tuple[str]) = file_reader(path,
3,
sep="\t",
header=True)
for cwid, name, major in students_data:
if major not in self._majors_dict:
print(f"Student {cwid} '{name}' has unknown major {major}")
else:
self._students_dict[cwid] = Student(
cwid, name, self._majors_dict[major])
except ValueError as v:
print(v)
def _get_grades(self, path: str) -> None:
"""read data of grades from grades file and update student and
instructor data.
"""
grades: Iterator(Tuple[str]) = file_reader(path,
4,
sep="\t",
header=True)
for st_cwid, course, grade, inst_cwid in grades:
if st_cwid in self._students_dict:
self._students_dict[st_cwid].add_course(course, grade)
else:
print(f"grade for unknown student {st_cwid}")
if inst_cwid in self._instructors_dict:
self._instructors_dict[inst_cwid].update_students(course)
else:
print(f"grade for unkown instructor {inst_cwid}")
def edges(self) -> Iterator(Edge):
return iter(self.edgelist)
def __enter__(self) -> Iterator:
"""Open all transferred files."""
self.file_open_list = [open(Path(i)) for i in self.lst]
return Iterator(self.file_open_list)
def conflict_points(self) -> Iterator(Tuple[float, ConflictPoint]):
"""Get iterator for sorted conflict points."""
if not self._sorted:
self._conflict_points.sort()
self._sorted = True
yield from self._conflict_points