How to use arbitrary keyword argument in class instance.[python]

Answer 1

janvi vashistha ,

it would be nice if you could give us a sample...

Answer 2

Arbitrary in what way?

Answer 3

If you wanted keyword-argument then it should be

def __init__( self, make, model, year, **user_profile ):
# function body

Notice there was a missing comma between argument <year> and <user_profile>. And we use double asterisks to denote keyword-argument.

At instantiation time, pass pairs of `key = value` after the first 3 arguments

car = Car( 2019, 'Audi', "A4', fuel = Petrol', displacement = 2000, engine ='I4', top_speed = 241 )

You will have a `dict` named <user_profile> inside __init__() you can check its content

Answer 4

Save the most recent update and share its link here. No one can help if they can't review the code ...

Here's how to share code bit link

https://www.sololearn.com/post/75089/?ref=app

Answer 5

Look at this line

long_name = ( ... )

The string is not properly formed, it's missing a single quote at its end.

Also you don't need to wrap the f-string inside parentheses

Answer 6

class Car:
"""A simple attempt to represent a car."""
def __init__(self,make,model,year *user_profile):
"""Initialize attributes to describe a car."""
self.model=model
self.make=make
self.year=year

def get_descriptive_name(self):
"""Return a neatly formatted name."""
long_name=(f"{self.year} {self.make} {self.model}.")
return long_name.title()

car=Car(2019,'audi','a4')
print (car.get_descriptive_name())

Answer 7

Thank you but what about self instance of user profile

Answer 8

Self instance? what instance? keyword-arguments are blended into a `dict`, not an object.

Not getting what you mean ...

Answer 9

Now how to add in *user profile

Answer 10

It's not working

Answer 11

class Car:
"""A simple attempt to represent a car."""
def __init__(self,make,model,year ,**user_profile):
"""Initialize attributes to describe a car."""
self.model=model
self.make=make
self.year=year

def get_descriptive_name(self):
"""Return a neatly formatted name."""
long_name=(f'{self.year} {self.make} {self.model})
return long_name.title()

car=Car(2019,'audi','a4', fuel='petrol',speed=251)