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

Milagros Roman
Milagros Roman
1,228 Points

I'm tired, I want to advance and it gives error and I am stop on the workplace, I don't receive error for this code

functions.py
add_list = list()
summarized = 0

def adding_list(num):
  add_list.append(num)

for num in range(4):
  adding_list(num)
  summarized = summarized + add_list[num]
print(summarized)
print(add_list)

# 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.
add_list = list()
summarized = 0

def adding_list(num):
  add_list.append(num)

for num in range(4):
  adding_list(num)
  summarized = summarized + add_list[num]
print(summarized)
print(add_list) 

[EDIT: formatting updated]

1 Answer

Hi,

The exercise requires that you make a function called add_list. Instead you've created a variable add_list and you assigned an empty list to it. When you do add_list = list() you assign an empty list to a new variable called add_list.

Since the add_list points to an empty list and not a function that can be invoked, the automatic exercise checker will issue an error (it will try to actually invoke the empty list as a function).

Try to read carefully the exercise and do what it requires. In this case, you need to implement a function called add_list. So, in your code you should have something like:

def add_list(a_list):
   # do something here with the input list

Hope this helps.