How do I make a list from instances of a class

Question

Hi,
I am having a play with classes. What would the simplest method be to create a list from instances in a class. I think it involves .append. I would like to use the list I create outside of the class.
ie.. can I create:
Python 
horse_list = []

somewhere in the class, then: 
Python 
horse_list.append(self)
 
in the __init__ function somewhere?
My code is below:
```Python 
class Horse:
def __init__(self, name, odds):
    self.name = name
    self.odds = odds
horsea = Horse('Boris', 9)
horseb = Horse('Trevor', 8)
horsec = Horse('Nigel', 7)
horsed = Horse('Clive', 6)
```

Chris Freeman · Accepted Answer

Since the list containS instances of Horse, the list construction would occur outside the class. Perhaps a list comprehension would word;
```Python 
horse_info = [
    ('Boris', 9), 
    ('Trevor', 8), 
    ('Nigel', 7), 
    ('Clive', 6)
]
horses = [Horse(*info) for info in horse_info]
```
Post back if you need more help. Good luck!!!

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David Ellis

David Ellis

How do I make a list from instances of a class

1 Answer

Chris Freeman

Chris Freeman

David Ellis

David Ellis