Getting an array iteration error, wondering how to fix it

Question

I am currently building a web scraper for Real Estate data. I'm working in Python and I've come across an error I can't seem to be able to fix.

for i in range(len(s)):
                        if '$' in s[i]:
                                price.append(s[i])

                        elif 'bath' in s[i]:
                                left = s[i].partition(",")[0]
                                right = s[i].partition(",")[2]
                                bed_bath.append(left)
                                sqft_lot.append(right)

                        elif 'fort collins' in s[i].lower():
                                address0 = s[i-1]+' '+s[i]
                                address.append(address0)

                        elif s[i].lower() == 'advertisement':
                                del s[i]

                        else:
                                continue

Value of 's' being:

                display = Display(visible=0, size=(800, 600))
                display.start()
                browser = webdriver.Firefox()
                browser.get(realtor.format(format))
                p = browser.find_element(By.XPATH, "//ul[@class='jsx-343105667 property-list list-unstyle']")
                content = p.text
                s = re.split('\n',content)

This is basically supposed to iterate through the array s, and add them to a separate array [price,bed_bath,sqrft_lot,address] to be used in a DataFrame. I know that it is indexing properly, I've printed each line consecutively using for i in range(len(s)): print s[i], which works, but then when I try to implement logic it's just breaking.

Getting error:

if '$' in s[i]:
**IndexError: list index out of range**

Any input into why this is happening would be much appreciated.

Answer 1

create a new list from s and populate it with filtered and processed data

output_list = []
def process_data(value):
    # your code for processing data
    ...

for i in range(len(s)):
    if s[i] == some_condition(i):
         output_list.append(process_value(s[i])

Answer 2

You're deleting inside the for loop. The example here throws an error as well and is maybe easier to understand:

s = [i for i in range(5)]

for i in range(len(s)):
    print(f"{i=} with {s=}")
    del s[i]

Output:

IndexError: list assignment index out of range
i=0 with s=[0, 1, 2, 3, 4]
i=1 with s=[1, 2, 3, 4]
i=2 with s=[1, 3, 4]
i=3 with s=[1, 3]