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Start your free trialshihab solaman
211 Pointspython help
dont know what to do
# combo([1, 2, 3], 'abc')
# Output:
# [(1, 'a'), (2, 'b'), (3, 'c')]
def combo(a,b):
2 Answers
Eray Ates
14,292 PointsLets start code with fuction declaration
def combo(my1, my2):
First you need to an iteration to get each tuple like as (1, 'a')
You can use it a function so if I pass 1 and 'a' I can get tuple:
def combo(my1, my2):
def tuplela(x,y):
return (x, y)
Now we get our core function, but we need to pass each x and y value one by one,
So map function can help us, it can get more than one iterable value and pass it to a function.
map(tuplela, my1, my2) #this get values of x,y from my1 and my2 one by one
But it will calculate so you want to get result should turn it to list
def combo(my1, my2):
def tuplela(x,y):
return (x, y)
return list(map(tuplela, my1, my2))
And here it works. Also you can turn tuplela function to a one line function ( as we know name lambda)
tuplela = lambda x, y: (x,y)
So you don't have to declare it just put in map
list(map(tuplela, my1, my2)) --> list(map(lambda x,y: (x,y) ,my1, my2))
def combo(my1, my2):
return list(map(lambda x,y: (x,y) ,my1, my2))
And this is our final solution, bring it together.
Iain Simmons
Treehouse Moderator 32,305 PointsIf you haven't gotten up to map
and lambdas, then perhaps just try creating a temporary variable to hold your output list, and then loop through one of the lists and just add to the temp list the value from the first list at that index, and the value of the second list at the same index. If you add two values separated by a comma, it should be a tuple by default. I think the parentheses are really just to help readability (so it's not a bad idea to use them also).
Once the loop is finished, return the temp list that should now contain the pairs as a tuple at each index.
Good luck!