Comprehensions.py

#  comprehensions are concise way to create   lists, sets , dictionarys , generators in Python using a single line of code 
# they are use in filtering , transferming item , create a new collection
#  cleaner code => faster execution


#  List =>  syntax [expression for item in iteratable if condition]
car = ['toyota' , 'Honda' , 'BMW' , "BYD" , 'BMW']
# user = input('Enter car name')
car_result = [ eachItemCar for eachItemCar in car if eachItemCar == 'BMW' ] #single line 
print(car_result)

# set => as we know set have unique values thar did'n repeate  syntaz {expression for item in iteratable if condition}
unique_car = {eachCarValue for eachCarValue in car if len(eachCarValue) }
print(unique_car)
show_Room = {
    "Honda" : ['civic' , "City" , "City"],
    "byd" : ['gass' , "petrol" , "Electrics"]
}
my_car = { eachCar  for car in show_Room.values() for eachCar in car  }
print(my_car)

# Dictionary => 
car_price = {
    "Honda" : 5000,
    "byd" : 4000,
}
car_price_discount = { brand:brand_price for brand , brand_price in car_price.items()  }
print(car_price_discount)