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student.py
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student.py
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## Assigning variables
# def main():
# name = input("Name: ")
# house = input("House: ")
# print(f"{name} from {house}")
# main()
# ## Creating functions
# def main():
# name = get_name()
# house = get_house()
# print(f"{name} from {house}")
# def get_name():
# return input("Name: ")
# def get_house():
# return input("House: ")
# if __name__ == "__main__":
# main()
# ## How to condense code above; this is an example of a 'tuple'
# def main():
# student = get_student()
# print(f"{student[0]} from {student[1]}")
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# return (name, house)
# if __name__ == "__main__":
# main()
# ## What if we wanted to be more robust by preventing users from assigning a character into the wrong house?
# ## Example below will correct the user if they would have inputted 'Padma' and then 'Gryffinfor', this code will output 'Padma from Ravernclaw'
# def main():
# student = get_student()
# if student[0] == "Padma":
# student[1] == "Ravenclaw"
# print(f"{student[0]} from {student[1]}")
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# return [name, house]
# if __name__ == "__main__":
# main()
# ## Another approach to code above, using dictionaries
# def main():
# student = get_student()
# print(f"{student['name']} from {student['house']}")
# def get_student():
# student = {} ## Recall the '{}' is to create a dictionary, the code right below is adding to the dictionary
# student["name"] = input("Name: ")
# student["house"] = input("House: ")
# return student
# if __name__ == "__main__":
# main()
# ## Alternatively to code above:
# def main():
# student = get_student()
# print(f"{student['name']} from {student['house']}")
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# return {"name": name, "house": house}
# if __name__ == "__main__":
# main()
## Let's continue adding to this code to include Padma into the correct Hogwarts house
## Below is explicitly describing what each variable is, instead of using 0,1,etc.
# def main():
# student = get_student()
# if student["name"] == "Padma":
# student["house"] = "Ravenclaw"
# print(f"{student['name']} from {student['house']}")
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# return {"name": name, "house": house}
# if __name__ == "__main__":
# main()
# ## Create a data type using 'classes'
# class Student:
# ... # This is a placeholder
# def main():
# student = get_student()
# print(f"{student.name} from {student.house}") # Note these differences from the code above
# def get_student():
# student = Student()
# student.name = input("Name: ") # Note that this is similar to dictionary, but you use attributes
# student.house = input("House: ")
# return student
# if __name__ == "__main__":
# main()
# ## Furthermore you can also approach the code above as follows
# class Student:
# ... # This is a placeholder
# def main():
# student = get_student()
# print(f"{student.name} from {student.house}")
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# Student = Student(name, house)
# return student
# if __name__ == "__main__":
# main()
# ## Using the __init__ an instance, to initiate a method/object
# class Student:
# def __init__(self, name, house): # note you need 'self' where it stores info into the current object, in this case Students
# self.name = name # create a new attribute, in this came name, you can use any variable after self., but need to define variable after, such as 'name'
# self.house = house
# def main():
# student = get_student()
# print(f"{student.name} from {student.house}")
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# student = Student(name, house)
# return student
# if __name__ == "__main__":
# main()
## How to approach if user were to input bogus or empty inputs?
## Using 'raise': programmer can raise an issue/error from a user
# class Student:
# def __init__(self, name, house):
# if not name:
# raise ValueError("Missing name") # Note you can also add message into the Error output!
# if house not in ["Gryffindor", "Hufflepuff", "Ravenclaw", "Slytherin"]:
# raise ValueError("Invalid house")
# self.name = name
# self.house = house
# def main():
# student = get_student()
# print(f"{student.name} from {student.house}")
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# return Student(name, house)
# if __name__ == "__main__":
# main()
# ## Using __str__
# class Student:
# def __init__(self, name, house):
# if not name:
# raise ValueError("Missing name")
# if house not in ["Gryffindor", "Hufflepuff", "Ravenclaw", "Slytherin"]:
# raise ValueError("Invalid house")
# self.name = name
# self.house = house
# def __str__(self):
# return f"{self.name} from {self.house}"
# def main():
# student = get_student()
# print(student)
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# return Student(name, house)
# if __name__ == "__main__":
# main()
# ## Creating your own methods
# class Student:
# def __init__(self, name, house, patronus):
# if not name:
# raise ValueError("Missing name")
# if house not in ["Gryffindor", "Hufflepuff", "Ravenclaw", "Slytherin"]:
# raise ValueError("Invalid house")
# self.name = name
# self.house = house
# self.patronus = patronus
# def __str__(self):
# return f"{self.name} from {self.house}"
# def charm(self):
# match self.patronus:
# case "Stag":
# return "🦌"
# case "Otter":
# return "🦦"
# case "Jack Russel Terrier":
# return "🐕"
# case _:
# return "🪄"
# def main():
# student = get_student()
# print("Expecto Patronum!")
# print(student.charm())
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# patronus = input("Patronus: ")
# return Student(name, house, patronus)
# if __name__ == "__main__":
# main()
# ## Using 'properties
# ## prevents programmers from messing up attributes
# ## '@property'
# ## decorators
# class Student:
# def __init__(self, name, house):
# if not name:
# raise ValueError("Missing name")
# self.name = name
# self.house = house
# def __str__(self):
# return f"{self.name} from {self.house}"
# # Getter
# @property
# def house(self):
# return self._house
# # Setter
# @house.setter
# def house(self, house):
# if house not in ["Gryffindor", "Hufflepuff", "Ravenclaw", "Slytherin"]:
# raise ValueError("Invalid house")
# self._house = house
# def main():
# student = get_student()
# print(student)
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# return Student(name, house)
# if __name__ == "__main__":
# main()
# ## Also integrating error in case a user does not include a name
# class Student:
# def __init__(self, name, house):
# self.name = name
# self.house = house
# def __str__(self):
# return f"{self.name} from {self.house}"
# @property
# def name(self):
# return self._name
# @name.setter
# def name(self, name):
# if not name:
# raise ValueError("Missing name")
# self._name = name
# # Getter
# @property
# def house(self):
# return self._house
# # Setter
# @house.setter
# def house(self, house):
# if house not in ["Gryffindor", "Hufflepuff", "Ravenclaw", "Slytherin"]:
# raise ValueError("Invalid house")
# self._house = house
# def main():
# student = get_student()
# print(student)
# def get_student():
# name = input("Name: ")
# house = input("House: ")
# return Student(name, house)
# if __name__ == "__main__":
# main()
## Futher cleaning the code above, integrating 'cls' from "hat.py"
class Student:
def __init__(self, name, house):
self.name = name
self.house = house
def __str__(self):
return f"{self.name} from {self.house}"
@classmethod
def get(cls):
name = input("Name: ")
house = input("House: ")
return cls(name, house)
def main():
student = Student.get()
print(student)
if __name__ == "__main__":
main()