def main():
# Create a dictionary to hold mammal and student
# Numbered keys is the way.
stud_pet_dic = dict()
# Create a list to hold both student and mammal object
stud_pet_lst = []
# Create both objects and store them into the
# empty list as a separate list, for convenience
myself = Student("Tapio", "Koskinen", 1337)
mypet = Mammal(1, "Bear", "Tiny", "Big", 150, 2)
stud_pet_lst.append([myself, mypet])
friend = Student("Matti", "Mallikas", 100)
friendpet = Mammal(2, "Unicorn", "Fred", "Medium", 500, 1.5)
stud_pet_lst.append([friend, friendpet])
# Add each pair that is in the pair list
for i in range(len(stud_pet_lst)):
stud_pet_dic[i] = stud_pet_lst[i]
# Loop through all key in the dictionary
# and print out the student and their pet
for i in stud_pet_dic:
pair = stud_pet_dic[i]
print("*" * 40)
print(f"Student:\n\n{pair[0]}\n" + "-" * 30,
f"\nHis/her pet:\n\n{pair[1]}")
print("*" * 40)
def test_invalid(self):
s1 = Student('Bart', -1)
s2 = Student('Lisa', 101)
with self.assertRaises(ValueError):
s1.get_grade()
with self.assertRaises(ValueError):
s2.get_grade()
def show_student_info(self, roll_no):
try:
cursor = self.connection.cursor(dictionary=True)
SEARCH_STUDENT_QUERY = f'''
SELECT * FROM {self.TABLE_NAME} WHERE roll_no = "{roll_no}"
'''
cursor.execute(SEARCH_STUDENT_QUERY)
row = cursor.fetchone()
if (row != None):
return Student(
roll_no=row["roll_no"],
name=row["name"],
address=row["address"],
contact=row["contact"],
city=row["city"],
standard=row["standard"],
)
else:
return None
except mysql.connector.Error as e:
print(f'error : {e}')
return None
finally:
cursor.close()
def show_all_students(self):
try:
cursor = self.connection.cursor(dictionary=True)
SEARCH_ALL_STUDENT_QUERY = f'''
SELECT * FROM {self.TABLE_NAME} '''
cursor.execute(SEARCH_ALL_STUDENT_QUERY)
rows = cursor.fetchall()
if (len(rows)):
for row in rows:
Student(
roll_no=row["roll_no"],
name=row["name"],
address=row["address"],
contact=row["contact"],
city=row["city"],
standard=row["standard"],
).show()
else:
print("No students in database")
except mysql.connector.Error as e:
print(f'error : {e}')
finally:
cursor.close()
def input_student():
L = []
while True:
name = input("姓名:")
if not name:
break
age = int(input("年龄:"))
score = int(input("成绩:"))
d = Student(name, age, score)
L.append(d)
return L
def add():
roll_no = input("Enter roll_no: ")
name = input("Enter name: ")
address = input("Enter address: ")
contact = input("Enter contact: ")
city = input("Enter city: ")
standard = input("Enter standard: ")
student = Student(roll_no=roll_no,
name=name,
address=address,
contact=contact,
city=city,
standard=standard)
database.insert_student(student)
def sample_data():
sample_list = [{
"roll_no": "1",
"name": "annant",
"address": "454446",
"contact": "9806",
"city": "manawar",
"standard": "1"
}, {
"roll_no": "2",
"name": "shyam",
"address": "380069",
"contact": "0990",
"city": "kolkata",
"standard": "2"
}, {
"roll_no": "3",
"name": "akshita",
"address": "452010",
"contact": "9179",
"city": "indore",
"standard": "3"
}, {
"roll_no": "4",
"name": "jay",
"address": "656664",
"contact": "7644",
"city": "ahmedabad",
"standard": "4"
}, {
"roll_no": "5",
"name": "anna",
"address": "452020",
"contact": "7000",
"city": "indore",
"standard": "5"
}]
for student in sample_list:
database.insert_student(
Student(roll_no=student["roll_no"],
name=student["name"],
address=student["address"],
contact=student["contact"],
city=student["city"],
standard=student["standard"]))
def read_info(filename='si.txt'):
# 方法1:
# try:
# f = open(filename,'rt')
# s = f.read()
# print(s)
# f.close()
# except OSError:
# print('读取文件失败')
# 方法2:
L = []
try:
f = open(filename, 'rt')
for line in f:
s = line.rstrip()
name, age, score = s.split(',')
age = int(age)
score = int(score)
L.append(Student(name, age, score))
f.close()
except OSError:
print('读取文件失败')
return L
def test_0_to_60(self):
s1 = Student('Bart', 0)
s2 = Student('Lisa', 59)
self.assertEqual(s1.get_grade(), 'C')
self.assertEqual(s2.get_grade(), 'C')
def test_60_to_80(self):
s1 = Student('Bart', 60)
s2 = Student('Lisa', 79)
self.assertEqual(s1.get_grade(), 'B')
self.assertEqual(s2.get_grade(), 'B')
def setUp(self):
self.stud = Student('Rickels', 'Alex', 'Econ')
def test_object_not_created_error_gpa(self):
with self.assertRaises(ValueError):
student = Student('Rickels', 'Alex', 'Econ', 'four point o')
def test_object_not_created_error_major(self):
with self.assertRaises(ValueError):
student = Student('Rickels', 'Alex', '457')
def test_object_not_created_error_first_name(self):
with self.assertRaises(ValueError):
student = Student('Rickels', '63', 'Econ')
def test_object_not_created_error_last_name(self):
with self.assertRaises(ValueError):
student = Student('45', 'Alex', 'Econ')
def test_object_created_all_attributes(self):
studenta = Student('Rickels', 'Alex', 'Econ', 4.0)
assert studenta.last_name == 'Rickels'
assert studenta.first_name == 'Alex'
assert studenta.major == 'Econ'
assert studenta.gpa == 4.0
from student_class import Student
from student_school import School
from student_subjects import Subject
from mysql_function import insertSchoolTodb
from mysql_function import insertStudentTodb
from mysql_function import getStudentId
from mysql_function import insertSubjectTodb
from grades_printer import getSubjects
allstudents = [] #for storing all student objects in a list
NoOfstudents = int(input('Enter number of students :'))
for x in range(0,NoOfstudents):
name = input('Enter student name :')
regNumber = int(input('Enter registration number :'))
student = Student(name,regNumber)
#insert student into database
insertStudentTodb(student)
schoolId = input('Enter school id :')
schoolname = input('Enter school name :')
schoolAddress = input('Enter school schoolAddress :')
schoolCode = input('Enter school code :')
studentID = getStudentId(student)
school = School(schoolname,schoolAddress,schoolCode,studentID)
#insert school into database
insertSchoolTodb(school)
NoOfsubjects = int(input('Enter number of subjects :'))
from student_class import Student, WorkingStudent
# Instances of class Student
fabio = Student('Fabio Lima', 'UNIPE')
print(fabio.school)
fabio_lima = WorkingStudent('Fabio Lima', 'UNIPE', 2700)
print(fabio_lima.salary)
option = input("\nEntry: ")
try:
option = int(option)
except ValueError:
print("Incorrect entry.\n")
continue
if option == 0:
print("Thank you, goodbye")
sys.exit()
elif option == 1:
f_name = input("Enter first name: ")
l_name = input("Enter last name: ")
student_list.append(Student(f_name, l_name))
print("Successful. {} {} added.".format(student_list[-1].get_f_name(),
student_list[-1].get_l_name()))
elif option == 2:
f_name = input("Enter first name: ")
l_name = input("Enter last name: ")
teacher_list.append(Teacher(f_name, l_name))
print("Successful, {} {} added. ID - {}".format(
teacher_list[-1].get_f_name(), teacher_list[-1].get_l_name(),
len(teacher_list)))
elif option == 3:
ws_id = input("Enter class name: ")
t_id = int(input("Enter teacher ID number: ")) - 1
workshop_list.append(
"contact": "7644",
"city": "ahmedabad",
"standard": "4"
}, {
"roll_no": "5",
"name": "anna",
"address": "452020",
"contact": "7000",
"city": "indore",
"standard": "5"
}]
for elem in sample_list:
student = Student(roll_no=elem["roll_no"],
name=elem["name"],
address=elem["address"],
contact=elem["contact"],
city=elem["city"],
standard=elem["standard"])
database.append(student)
# for student in database:
# student.show()
# student = database[0]
# student.update("aaa")
# student.show()
def add():
roll_no = input("Enter roll_no: ")
name = input("Enter name: ")
#importing student_class file and also importing student class
from student_class import Student
Student_obj = Student("ashwin", 23012322, 23, "BE", 7)
print(Student_obj.gpa)
def test_80_to_100(self):
s1 = Student('Bart', 80)
s2 = Student('Lisa', 100)
self.assertEqual(s1.get_grade(), 'A')
self.assertEqual(s2.get_grade(), 'A')
from student_class import Student
student1 = Student("George", "7", 3.1, False)
student2 = Student("Pam", "8", 1.1, True)
print(student2.gpa)
def getSubjects():
myconnection = myDatabaseConnector()
mycursor = myconnection.cursor()
students_query = "select * from students;"
mycursor.execute(students_query)
studentresults = mycursor.fetchall()
#fetch one by one student
all_school_subjects = []
for one_student in studentresults:
#create instance of student object
student = Student(one_student[0], one_student[1])
studid = one_student[2]
print('Name :{}\nRegNo :{}\nStudent Id :{}'.format(
student.name, student.regNumber, studid))
#fetch individual student subjects
#print subjects
print('\n======Subjects===== \n')
get_subject_id = "select * from subjects where student_id=%s;"
new_studId = (studid, )
mycursor.execute(get_subject_id, new_studId)
subject_results = mycursor.fetchall()
#get single subject information and assign to subjects object
all_student_subjects = []
for single_subject in subject_results:
#assign Subject object to single_subject
subject = Subject(single_subject[0], single_subject[1],
single_subject[2])
#print single subject details
print('{}:{} Grade:{}'.format(subject.subjectName,
subject.subjectScore,
gradingSystem(subject.subjectScore)))
all_student_subjects.append(subject.subjectScore)
#add subjects score to all_school_subjects
all_school_subjects.append(subject.subjectScore)
#get mean score and mean grade for all subjects
NoOfSubjects = len(all_student_subjects)
totalMarks = sum(all_student_subjects)
meanScore = getMean(totalMarks, NoOfSubjects)
meanGrade = gradingSystem(meanScore)
print('Mean Score :{}'.format(meanScore))
print('Mean Grade :{}'.format(meanGrade))
print('___________________________\n')
#grab all all_school_subjects_scores
NoOfSchool_Subjects = len(all_school_subjects)
totalSchoolMarks = sum(all_school_subjects)
schoolMeanScore = getMean(totalSchoolMarks, NoOfSchool_Subjects)
schoolMeanGrade = gradingSystem(schoolMeanScore)
print('===Overall School Perfomance===')
print('Mean Score for the school is :{}'.format(schoolMeanScore))
print('Mean Grade for the school is :{}'.format(schoolMeanGrade))
#getSubjects() for testing purposes
from functools import reduce
from student_class import Student
students = []
with open("student_try.csv", "r", encoding='utf8') as file:
for line in file:
students.append(Student(line))
students.sort(key=lambda stu: stu.score, reverse=True)
m = map(lambda stu: stu.make_grade(), students)
list(m)
total = reduce(lambda x, y: (x if type(x) == int else x.score) + y.score,
students)
avg = total / len(students)
print("총계, 평균 >", total, avg)
print("이름\t성별\t나이\t학점")
print("----\t----\t----\t----")
for s in students:
print(s)
print("이름\t점수")
print("------\t----")
for s in students:
if s.score >= avg:
print("{}\t{}".format(s.name, s.score))