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Chris Komaroff
Courses Plus Student 14,198 PointsIs teacher's answer for Tuples with Functions challenge 1 of 1 correct? "Bummer expected (10,T)" is wrong?
Challenge 1 of 1 code comment:
combo([1, 2, 3], 'abc')
Output:
[(1, 'a'), (2, 'b'), (3, 'c')]
If you use .append(), you'll want to pass it a tuple of new values
That's what my function combo() gives. I tested in workspace. Not following this.
# combo([1, 2, 3], 'abc')
# Output:
# [(1, 'a'), (2, 'b'), (3, 'c')]
# If you use .append(), you'll want to pass it a tuple of new values.
def combo( iter1, iter2 ):
return_list = []
temp_dict = {}
list_len = len( iter1 )
i = 0
while i < list_len:
temp_dict[ iter1[i] ] = iter2[i]
i += 1
for key, value in temp_dict.items():
return_list.append( (key,value) )
return return_list
1 Answer
Chris Freeman
Treehouse Moderator 68,423 PointsThe ordering of items found when iterating on a dictionary can not be guaranteed. By constructing a temp_dict then reading key/value pairs out, you are scrambling the tuple order. Instead you can build add append the tuples directly
def combo( iter1, iter2 ):
return_list = []
list_len = len( iter1 )
i = 0
while i < list_len:
return_list.append((iter1[i], iter2[i]))
i += 1
return return_list
Chris Freeman
Treehouse Moderator 68,423 PointsChris Freeman
Treehouse Moderator 68,423 PointsThere are many ways to improve on this code:
Or....