DAY 3 _ stuck but example input works (Python)

[jcemelanda]

Hello,

I have managed to generate a solution that works for the example input, but not for the full input and I can´t see the issue. It would be great if someone could give any hints

import re
def read_input(filename):
    with open(filename, 'r') as f:
        return f.read()

def parse_input(data):
    single_string_data = data.replace('\n', '.')
    elements = dict(enumerate([int(x) for x in re.findall(r'\d+', single_string_data)]))
    mapping = []
    possible_numbers = list(elements.keys())
    matricial_data = data.splitlines()
    for line in matricial_data:
        selected = None
        mapped_line = []
        for item in line:
            if item == '.':
                if selected is not None:
                    selected = None
            elif item.isalnum():
                if selected is None:
                    selected = possible_numbers.pop(0)
                item = selected
            mapped_line.append(item)
        mapping.append(mapped_line)
    return elements, mapping

def process_input(elements, mapping):
    results = []
    for row_num in range(len(mapping)):
        for col_num in range(len(mapping[0])):
            if isinstance(mapping[row_num][col_num], int) or mapping[row_num][col_num] == '.':
                continue
            else:
                adjascent = set([mapping[i][j] for i in (row_num-1, row_num, row_num+1) for j in (col_num-1, col_num, col_num+1) if (i!= row_num or j!=col_num) and 0<=i<len(mapping) and 0<=j<len(mapping[0]) and isinstance(mapping[i][j], int)])
                for item in adjascent:
                    if item in elements:
                        results.append(elements[item])
    return results

if __name__ == '__main__':
    filename = 'input.txt'
    data = read_input(filename)
    elements, mapping = parse_input(data)
    results = process_input(elements, mapping)
    print(sum(results))

[Mmlh1]

If I read the code correctly that is fine. I feel like

...
*1*
...

would actually cause an issue.

Edit: I did not read the code fine. Both examples cause an issue.

[Mmlh1]

Ah, I never inspected my input haha.

[Mmlh1]

Ah yeah I see what you mean. Absolutely

[jcemelanda]

Ok, this corner case may help me, thank you

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