def scan_student_info(self):
"""scans students.txt and populate it to a dictionary"""
path = "students.txt"
for i in file_reader(path, 3, ';', True, 0):
self.student_dict[i[0]] = [i[1], i[2], 0, 0, [], [], []]
path = "grades.txt"
for i in file_reader(path, 4, '|', True):
self.student_dict[i[0]][2] += self.grade_dict[i[2]]
self.student_dict[i[0]][3] += 1
self.student_dict[i[0]][4].append(i[1])
# populate course_dict
try:
self.course_dict[i[1]][0].append(i[0])
except Exception as e:
self.course_dict[i[1]] = [[], '', '', '']
self.course_dict[i[1]][0].append(i[0])
self.course_dict[i[1]][1] = i[3]
for i in self.student_dict.values():
i[5] = diff(self.major_dict[i[1]][0], i[4])
if common(self.major_dict[i[1]][1], i[4]):
i[6] = self.major_dict[i[1]][1]
print('Student Scanned')
def scan_majors(self):
"""scans majors.txt and populate it to a dictionary"""
path = "majors.txt"
for i in file_reader(path, 3, '\t', True, 2):
self.major_dict[i[0]] = [[], []]
for i in file_reader(path, 3, '\t', True):
if i[1] == 'R':
self.major_dict[i[0]][0].append(i[2])
elif i[1] == 'E':
self.major_dict[i[0]][1].append(i[2])
else:
raise ValueError("Course Flag Error")
print("Majors Scanned")
def test_file_reader_should_read(self):
"""test bahavior when file opened successfully"""
path = "/Users/yikanwang/Documents/Fall2020/SSW 810/homework/test_file"
false_header: Iterator[list[str]] = file_reader(path, 3, ' ')
self.assertEqual(next(false_header), ['xander', 'score', '3'])
self.assertEqual(next(false_header), ['julie', 'score', '4'])
self.assertEqual(next(false_header), ['adam', 'score', '7'])
self.assertNotEqual(next(false_header), ['noname', 'score', '7'])
def scan_instructors(self):
"""scans instructors.txt and populate it to dictionary"""
path = "instructors.txt"
for i in file_reader(path, 3, '|', True):
self.instructor_dict[i[0]] = [i[1]]
self.instructor_dict[i[0]].append(i[2])
keys = self.course_dict.keys()
for key in keys:
ins_Id = self.course_dict[key][1]
self.course_dict[key][2] = self.instructor_dict[ins_Id][0]
self.course_dict[key][3] = self.instructor_dict[ins_Id][1]
print('Instructor Scanned')
def test_file_reader_should_throw_if_file_found(self):
"""test bahavior when file not opened successfully"""
directory = 'nosuchfile.txt'
with self.assertRaises(StopIteration):
next(file_reader(directory, 3, ' '))