London|25-SDC-NOV| FATMA DEGIRMENCI | Sprint 5|Prep exercise Python

sprint5/data_classes.py

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+from dataclasses import dataclass
+from datetime import date
+
+@dataclass(frozen=True)
+class Person:
+    name:str
+    date_of_birth:date
+    preferred_operating_system:str
+
+
+    def is_adult(self)->bool:
+        today=date.today()
+        age=today.year-self.date_of_birth.year
+
+        if(today.month,today.day)<(self.date_of_birth.month,self.date_of_birth.day):
+            age-=1
+        return age>=18   
+
+
+
+imran = Person("Imran", date(2001, 9, 16), "Ubuntu")
+print(imran)
+print(imran.is_adult())
+

sprint5/enums.py

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+from dataclasses import dataclass
+from enum import Enum
+from typing import List
+import sys
+
+class OperatingSystem(Enum):
+    MACOS = "macOS"
+    ARCH = "Arch Linux"
+    UBUNTU = "Ubuntu"
+
+@dataclass(frozen=True)
+class Person:
+    name: str
+    age: int
+    preferred_operating_system: OperatingSystem
+
+@dataclass(frozen=True)
+class Laptop:
+    id: int
+    manufacturer: str
+    model: str
+    screen_size_in_inches: float
+    operating_system: OperatingSystem
+
+laptops = [
+    Laptop(1, "Dell", "XPS", 13, OperatingSystem.ARCH),
+    Laptop(2, "Dell", "XPS", 15, OperatingSystem.UBUNTU),
+    Laptop(3, "Dell", "XPS", 15, OperatingSystem.UBUNTU),
+    Laptop(4, "Apple", "macBook", 13, OperatingSystem.MACOS),
+]
+
+def get_name() -> str:
+    while True:
+        name = input("Name: ").strip()
+        if name:
+            return name
+        print("Name cannot be empty.")
+
+def get_age() -> int:
+    while True:
+        age_input = input("Age: ").strip()
+        try:
+            age=int(age_input)
+            if age>0:
+                return age
+            else:
+                print("Age must be a positive number.")
+        except ValueError:
+            print("Age must be a number.")                
+def get_os() -> OperatingSystem:
+    os_values = [os.value for os in OperatingSystem]
+    while True:
+        os_input = input(f"Preferred OS ({', '.join(os_values)}): ").strip()
+        try:
+            return OperatingSystem(os_input)
+        except ValueError:
+            print(f"'{os_input}' is not a valid operating system. Please try again.")
+
+name=get_name()
+age=get_age()
+preferred_os=get_os()
+
+person = Person(name=name, age=age, preferred_operating_system=preferred_os)
+
+def find_possible_laptops(laptops: List[Laptop], person: Person) -> List[Laptop]:
+    return [laptop for laptop in laptops if laptop.operating_system == person.preferred_operating_system]
+
+possible_laptops = find_possible_laptops(laptops, person)
+print(f"There are {len(possible_laptops)} laptops matching your preferred OS ({person.preferred_operating_system.value}).")
+
+other_counts = {os: sum(1 for l in laptops if l.operating_system == os) for os in OperatingSystem}
+most_available_os = max(other_counts, key=other_counts.get)
+
+if most_available_os != person.preferred_operating_system and other_counts[most_available_os] > len(possible_laptops):
+    print(f"If you are willing to accept {most_available_os.value}, there are more laptops available ({other_counts[most_available_os]}).")

sprint5/exercise1.py

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+def open_account(balances:dict , name:str, amount:int):
+    balances[name] = amount
+
+def sum_balances(accounts):
+    total = 0
+    for name, pence in accounts.items():
+        print(f"{name} had balance {pence}")
+        total += pence
+    return total
+
+def format_pence_as_string(total_pence:int):
+    if total_pence < 100:
+        return f"{total_pence}p"
+    pounds = int(total_pence / 100)
+    pence = total_pence % 100
+    return f"£{pounds}.{pence:02d}"
+
+balances = {
+    "Sima": 700,
+    "Linn": 545,
+    "Georg": 831,
+}
+
+open_account(balances,"Tobi", int(9.13*100))
+open_account(balances,"Olya", int(7.13*100))
+
+total_pence = sum_balances(balances)
+total_string = format_pence_as_string(total_pence)
+
+print(f"The bank accounts total {total_string}")
+
+
+

sprint5/exercise2.py

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+class Person:
+    def __init__(self, name: str, age: int, preferred_operating_system: str):
+        self.name = name
+        self.age = age
+        self.preferred_operating_system = preferred_operating_system
+
+imran = Person("Imran", 22, "Ubuntu")
+print(imran.name)
+print(imran.address)
+
+eliza = Person("Eliza", 34, "Arch Linux")
+print(eliza.name)
+print(eliza.address)
+
+
+def is_adult(person: Person) -> bool:
+    return person.age >= 18
+
+print(is_adult(imran))
+
+def print_address(person: Person) -> str:
+    return person.country

sprint5/generics.py

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+from dataclasses import dataclass
+from typing import List
+
+@dataclass(frozen=True)
+class Person:
+    name: str
+    children: List["Person"]
+    age:int
+
+fatma = Person(name="Fatma", age=6,children=[])
+aisha = Person(name="Aisha", age=10,children=[])
+
+imran = Person(name="Imran", age=40,children=[fatma, aisha])
+
+def print_family_tree(person: Person, level:int=0) -> None:
+    indent="-->" * level
+    print(f"{indent}{person.name} ({person.age})")
+    for child in person.children:
+        print_family_tree(child,level+1)
+
+print_family_tree(imran)

sprint5/inheritance.py

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+class Parent:
+    def __init__(self, first_name: str, last_name: str):
+        self.first_name = first_name
+        self.last_name = last_name
+
+    def get_name(self) -> str:
+        return f"{self.first_name} {self.last_name}"
+
+
+class Child(Parent):
+    def __init__(self, first_name: str, last_name: str):
+        super().__init__(first_name, last_name)
+        self.previous_last_names = []
+
+    def change_last_name(self, last_name) -> None:
+        self.previous_last_names.append(self.last_name)
+        self.last_name = last_name
+
+    def get_full_name(self) -> str:
+        suffix = ""
+        if len(self.previous_last_names) > 0:
+            suffix = f" (née {self.previous_last_names[0]})"
+        return f"{self.first_name} {self.last_name}{suffix}"
+
+person1 = Child("Elizaveta", "Alekseeva")
+print(person1.get_name()) # it works because get_name inherited from Parent 
+print(person1.get_full_name()) # works because Child has get_full_name method 
+person1.change_last_name("Tyurina")
+print(person1.get_name())
+print(person1.get_full_name())
+
+person2 = Parent("Elizaveta", "Alekseeva")
+print(person2.get_name()) # it works because get_name is Parent method 
+# print(person2.get_full_name())   it doesn't work because Parent doesn't have this method 
+# person2.change_last_name("Tyurina")  it doesn't work because Parent doesn't have this method
+print(person2.get_name())
+# print(person2.get_full_name()) 

sprint5/methods.py

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+from datetime import date
+
+
+class Person:
+    def __init__(self, name: str, date_of_birth: date, preferred_operating_system: str):
+        self.name = name
+        self.date_of_birth = date_of_birth
+        self.preferred_operating_system = preferred_operating_system
+
+    def is_adult(self) -> bool:
+       today=date.today()
+       age=today.year -self.date_of_birth.year
+
+       if(today.month,today.day)<(self.date_of_birth.month,self.date_of_birth.day):
+           age-=1
+       return age>=18    
+
+imran = Person("Imran", date(2001,9,16), "Ubuntu")
+print(imran.is_adult())

sprint5/type-guided_refactorings.py

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+from dataclasses import dataclass
+from typing import List
+
+@dataclass(frozen=True)
+class Person:
+    name: str
+    age: int
+    preferred_operating_system: List[str]
+
+
+@dataclass(frozen=True)
+class Laptop:
+    id: int
+    manufacturer: str
+    model: str
+    screen_size_in_inches: float
+    operating_system: str
+
+
+def find_possible_laptops(laptops: List[Laptop], person: Person) -> List[Laptop]:
+    possible_laptops = []
+    for laptop in laptops:
+        if laptop.operating_system == person.preferred_operating_system:
+            possible_laptops.append(laptop)
+    return possible_laptops
+
+
+people = [
+    Person(name="Imran", age=22, preferred_operating_system=["Ubuntu","Arch Linux"]),
+    Person(name="Eliza", age=34, preferred_operating_system=["Ubuntu","Arch Linux"]),
+]
+
+laptops = [
+    Laptop(id=1, manufacturer="Dell", model="XPS", screen_size_in_inches=13, operating_system="Arch Linux"),
+    Laptop(id=2, manufacturer="Dell", model="XPS", screen_size_in_inches=15, operating_system="Ubuntu"),
+    Laptop(id=3, manufacturer="Dell", model="XPS", screen_size_in_inches=15, operating_system="ubuntu"),
+    Laptop(id=4, manufacturer="Apple", model="macBook", screen_size_in_inches=13, operating_system="macOS"),
+]
+
+for person in people:
+    possible_laptops = find_possible_laptops(laptops, person)
+    print(f"Possible laptops for {person.name}: {possible_laptops}")