nonogram.py

def validate_row(nonogram, keys):
    for i, rows in enumerate(nonogram):
        current_group = keys[i]
        print("before", current_group)
        for idx, e in enumerate(rows):
            if e != 'x':
                continue
                
            if current_group:
                current_group[0] -= 1
                print("inside_before", current_group)
                try:
                    if current_group[0] == 0 and rows[idx+1] == ' ':
                        current_group.pop(0)
                    elif current_group[0] == 0:
                        return False
                except IndexError:
                    if current_group[0] == 0 and len(rows)-1 == idx:
                        current_group.pop(0)
                print("inside_after", current_group)
            else:
                return False
        print("after", current_group)
        if current_group:
            return False
    return True