In [26]:

    

class student():
    
    def __init__(self, name):
        self.name = name
        
    def study(self):
        print("normal people study the coding")
        
    def coding(self):
        print("only special people can do the python")
        
# class DataScienceStudent():
#     def __init__(self, name):
#         self.name = name
    
#     def study(self):
#         print("normal people start study")
        
#     def coding(self):
#         print("they start study about datascience")

class DataScienceStudent(student):
    
    def coding(self):
        print ("데사스는 jupyter notebook으로 개발합니다")


    

In [29]:

    

student = student("jy")


    

In [12]:

    

student.study()
student.coding()


    

    




normal people study the coding
only special people can do the python

In [34]:

    

dss = DataScienceStudent("je")


    

In [35]:

    

dss.coding()


    

    




데사스는 jupyter notebook으로 개발합니다

In [38]:

    

class student():
    
    def __init__(self, name):
        self.name = name
        
    def introduce():
        print("저는 {name}입니다".format(name = name))
        
        
class DSStudent(student):
    def introduce(self):
        print("안녕하세요, 저는 데사스{name}".format(name = self.name))


    

In [85]:

    

import time
class Timer():
    
    def __init__(self, function):
        self.function = function
        
    def __call__(self, *args, **kwargs):
        start_time = time.time()
        result = self.function(*args, **kwargs)
        end_time = time.time()
        print("{time}s".format(time = end_time - start_time))
        return result


    

In [86]:

    

@Timer
def print_hello(name):
    print("hellow world " +   name)


    

In [87]:

    

print_hello("jy")


    

    




hellow world jy
0.000999927520752s

In [ ]:

    




    

In [101]:

    

class FastcampusPerson():
    
    def __init__(self, name, is_manager = False):
        self.name = name
        self.is_manager = is_manager
        
    def __str__(self):
        return self.name
    
JE = FastcampusPerson("박지은", is_manager = True)
JY = FastcampusPerson("박지용")


JE.is_manager
JY.is_manager


    

    
Out[101]:





False

In [127]:

    

class FastcampusSchool():
    
    def __init__(self,name):
        self.name = name
        #student_list = []
        
    def add_student(self, manager, student):
        if manager.is_manager:
            print("{manager}이 {student}를 추가했습니다".format(
                manager = manager.name,
                student = student.name,
            ))
        else:
            print("학생은초대가 불가합니다")
        
    def __str__(self):
        return self.name


    

In [128]:

    

DSS = FastcampusSchool("데이터 사이언스 school")
print(DSS)


    

    




데이터 사이언스 school

In [129]:

    

JY = FastcampusPerson("박지용")
JE = FastcampusPerson("박지은", is_manager = True)


    

In [130]:

    

DSS.add_student(JY, JE)


    

    




학생은초대가 불가합니다

In [131]:

    

DSS.add_student(JE, JY)


    

    




박지은이 박지용를 추가했습니다

In [ ]:

    

class PermissionDeniedError(exception):
    
    def __init__(self, person):
        self.person = person
        
    def __str__(self):
        return("{name}은 매니저가 아니라서, 권한이 없습니다".format(name = self.person.name))