[Tutor] Counting Items on a List associated w/ Index #

[Rafael Knuth]

Hi there,

I wrote a function which is supposed to count the number of items on
each index #.
For starters, here's a list I created to test the function:

properties = ["mansion, modern, swimming_pool" , "mansion, historic,
air_conditioning", "penthouse, modern, whirlpool"]

# index 0 = property type
# index 1 = style
# index 2 = feature

Here's the function:

def feature_counter(input_lst, index, input_str):
    num_elt = 0
    output_lst = []
    for row in input_lst:
        split_row = row.split(",")
        output_lst.append(split_row)
    for each in output_lst:
        if each[index] == input_str:
            num_elt = num_elt + 1
    return num_elt

This function returns the correct result when checking index 0:

print(feature_counter(properties, 0, "mansion"))
>>> 2

Weirdly, it returns the wrong result when checking index 1:

print(feature_counter(properties, 1, "modern"))
>>> 0

and index 2:

print(feature_counter(properties, 2, "swimming_pool"))
>>> 0

Can anyone advise what's wrong with my function?

Thanks,

Rafael