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Python Python Basics (Retired) Putting the "Fun" Back in "Function" Functions

i keep getting syntax error whats the problem?

what am i doing wrong?

# add_list([1, 2, 3]) should return 6
# summarize([1, 2, 3]) should return "The sum of [1, 2, 3] is 6."
# Note: both functions will only take *one* argument each.
def add_list ([1, 2, 3]) :
  total = 6
  for ([1, 2, 3] ) :
    6 = 6 + ([1, 2, 3] )
    return 6

2 Answers

Chris Freeman
Chris Freeman
Treehouse Moderator 68,033 Points

Your for loop needs to be of the form for item in iterable:

def add_list (lst) : #<-- pass generic argument
  total = 0
  for item in lst : #< -- need loop variable and keyword "in"
    total = total + item #<-- accumulate total
  return total #<-- unindent to match for loop

The proper syntax for that function would be something like this

array = [1,2,3]
def add_list(arg):
    total = 0
    for number in arg:
        total += a