从特定行开始追加到新文件

Question

I want to append from a certain line onward from a url link, the link is a.txt file that contain something similar to the following:
X -- Y -- Z
3 -- 5 -- 1
6 -- 4 -- 2
7 -- 2 -- 3
and so forth.... I only managed to have it read all the file and appending them to a new one, but I want to omit the first line.

import urllib.request as ur
import shutil
with ur.urlopen(#link) as link, open("#filePath", 'ab') as Data:
        shutil.copyfileobj(link, Data)

Is there a way to slice the lines within the url to append to the new file?

Answer 1

Just skip the first line explicitly:

import urllib.request as ur
import shutil
with ur.urlopen(#link) as link, open("#filePath", 'ab') as Data:
    link.readline()  # Reads one line, discards it, leaves link positioned after it
                     # next(link, None) should also work; there are subtle differences,
                     # but either should work here
    shutil.copyfileobj(link, Data)