Convert list to interger

[deanhystad]

If the file looks like this:
Whatever
114436
114474
114514

You can skip the first line in the file.

with open("data.csv", "r") as file:
    next(file)
    for line in file:
        print(int(line))

Output:
114436
114474
114514

When using a contact manager (with), the file only remains open for code that is in the context block (indented 1 level deeper than the with). In your latest example the manhole_id file is closed before the for loop executes.