def passanger_list(passangerInput, pp): 
    pp = ["passangers:"]
    passangerInput = input("what is your passanger name?")   
    if passangerInput:
        pp.append()

print(passanger_list)

CodePudding user response：

Maybe this will help you:

def passanger_list(passangerInput, pp): 
    if passangerInput:
        pp.append(passangerInput)
    return pp

pp = []
pp = passanger_list(
    input("what is your passanger name?"),
    pp
)

print("passangers:", pp)

Also, you might want to spell it "passengers" instead of "passangers".

CodePudding user response：

def passanger_list(): 
    pp = ["passangers:"]
    passangerInput = input("what is your passanger name?")   
    if passangerInput:
        pp.append(passangerInput)
    return pp

print(passanger_list())

CodePudding user response：

If you define pp = ["passangers:"] why do you want to get input for your function?

global pp 
pp= {"passengers":[]}

def passanger_list(): 
    passangerInput = input("what is your passanger name?")
    
    pp["passengers"].append(passangerInput) 
   

    return pp

>>> passanger_list()

CodePudding user response：

Do it this way

''' You dont need to send pp and passengerInput as parameters for this function because, they're values are being initialized only when the passenger_list() is called. ''' 
def passenger_list(): 
    ''' It would be better for you to avoid having the passengers text inside. If you really want the values as passenger: "name of passenger", you can use a dictionary. I will add code for that as well.'''
    pp = []
    passengerInput = input("what is your passanger name?")   
    if passengerInput:
        pp.append(passengerInput)
    print(pp)
    
    # This statement is crucial so that the value is passed back to the code that is calling it.
    return pp

In this case, after calling passenger_list(), your output will look like ["Ram", "Shyam", "Sita"].

For output of the form - {"Passengers":["Ram","Shyam","Sita]}, please refer the code below.

def passenger_list(): 
    
    pp = {"Passengers":[]}
    passengerInput = input("what is your passanger name?")   
    if passengerInput:
        pp["Passengers"].append(passengerInput)
    print(pp)
    # You can access the list using pp["Passenggers"]
    print(pp["Passengers"]) # Output is ["Ram", "Shyam", "Sita"]  
    
    return pp 

Read more about Python dictionaries here.

CodePudding user response：

I think it is better to use a list of dictionaries instead of a list.

Instead of this:

    pp = ["passangers:"]
    passangerInput = input("what is your passanger name?")   
    if passangerInput:
        pp.append()

print(passanger_list)

I would do:

passenger_list = []

def add_passenger(passenger_name): 
    if passanger_name:
        passenger_list.append({"name":passenger_name})

add_passenger("bob")
print(passanger_list)

This way you can store multiple passengers and can even add other key-value pairs like seat number or class etc.

The way you are doing it will make it harder to retrieve information.