Exercises 7.py

"""
1. Write a program that asks the user for a number of a month and then prints out the corresponding season
(spring, summer, autumn, winter). Save the seasons as strings into a tuple in your program.
We can define each season to last three months, December being the first month of winter.
"""
seasons = ("spring", "summer", "autumn", "winter")
n = int(input("Enter the month as number (1-12): "))
print("The season for that month is:", seasons[(n-3)//3])

"""
2. Write a program that asks the user to enter names until he/she enters an empty string. 
After each name is read the program either prints out New name or Existing name depending on whether the name was entered for the first time. 
Finally, the program lists out the input names one by one, one below another in any order. Use the set data structure to store the names.
"""

names = set()
while True:
    n = input("Enter a name:")

    if n in names:
        print("Existing name.")
    if n not in names:
        print("New name.")
    names.add(n)
    if n == "":
        break
print(names)


"""""
3. Write a program for fetching and storing airport data. The program asks the user if they want to enter a new airport, fetch the information of an existing airport or quit.
If the user chooses to enter a new airport, the program asks the user to enter the ICAO code and name of the airport.
If the user chooses to fetch airport information instead, the program asks for the ICAO code of the airport and prints out the corresponding name. 
If the user chooses to quit, the program execution ends. The user can choose a new option as many times they want until they choose to quit. 
(The ICAO code is an identifier that is unique to each airport. For example, the ICAO code of Helsinki-Vantaa Airport is EFHK. 
You can easily find the ICAO codes of different airports online.)
"""
print("Please choose a option:\n a) Enter a new airport (N)\n b) Fetch the information (F)\n c) Want to quit (Q)")
n = input("Please choose a option: ")
dictionary = {}
dictionary_2 = {"EFHK":"Helsinki-Vantaa Airport",
                "EFHF":"Helsinki-Malmi Airport",
                "EFIV":"Ivalo Airport"}

while n != "Q":
    if n == "N":
        n_1 = input("Enter the ICAO code of the airport:")
        n_2 = input("Enter the name of the airport:")
        dictionary.update({n_1:n_2})
        print(dictionary)
        n = input("Please choose a option: ")
    if n == "F":
        n_3 = input("Enter the ICAO code of the airport:")
        print(dictionary_2.get(n_3))
        n = input("Please choose a option: ")
    else:
        break
print("Worng input")