Is there three in a row?

[deedee2]

Hi there,
Im having an issue starting out a problem.


I am trying to take a list of poisonous snakes, and my python function needs to take this list of snakes and a given plane name with a list of things. It will then return the number of matches between the snakes and the plane lists.

Snakes = ['Diamondback', 'Rattlesnake', 'Cottonmouth', 'Cobra', 'Black Mamba', 'Viper', 'coral', 'taipan', 'eastern brown']

plane1= ['passenger', 'fbi agent', 'black mamba', 'samuel l jackson', 'eastern brown', 'cobra']

snakes_on_a_pla ne(snakes, plane1) returns 3.


I was thinking to iterate through and use a source like message passing, but not sure how to start message passing on python .


thanks!

[v0id]

def snakes_on_a_plane(snake,plane):
    return len(set(snakes).intersection(set(plane)))

you'll need to deal w/ case sensitive stuff but basically thats it.

[bvdet]

That's it v0id - and this takes care of the case:

set([s.lower() for s in Snakes]).intersection(set([s.lower() for s in plane1]))

[Nonemsludo]

try list comprehension and change all the string to a specific case
>>> Snakes = ['Diamondback', 'Rattlesnake', 'Cottonmouth', 'Cobra', 'Black Mamba', 'Viper', 'coral', 'taipan', 'eastern brown']
>>> plane1= ['passenger', 'fbi agent', 'black mamba', 'samuel l jackson', 'eastern brown', 'cobra']
>>> d=len([x for x in Snakes if x==x in plane1])