Issue 4970 - Document the library API of python-abp

tests/test_render_script.py

 # This file is part of Adblock Plus <https://adblockplus.org/>,
 # Copyright (C) 2006-present eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ skipping 11 matching lines @@
 from __future__ import unicode_literals
 
 import os
 import pytest
 import subprocess
 import threading
 
 try:
     import SimpleHTTPServer
     import SocketServer
-except:  # The modules were renamed/moved in Python 3.
+except ImportError:  # The modules were renamed/moved in Python 3.

[Vasily Kuznetsov, 2017/10/24 16:11:00]

flake8 started complaining about a bare except -- fair enough, I added
ImportError there.

     import http.server as SimpleHTTPServer
     import socketserver as SocketServer
 
 
 @pytest.fixture
 def rootdir(tmpdir):
     """Directory with prepared list fragments."""
     rootdir = tmpdir.join('root')
     rootdir.mkdir()
     # Simple file with just `Ok` and a non-ascii unicode character in it.
@@ skipping 140 matching lines @@
 
 @pytest.mark.slowtest
 def test_failed_web_include(rootdir, dstfile, webserver_port):
     url = 'http://localhost:{}/missing.txt'.format(webserver_port)
     webinc = rootdir.join('webinc.txt')
     webinc.write('[Adblock]\n%include {}%'.format(url))
     code, err = run_script(str(webinc), str(dstfile))
     assert code == 1
     assert err.startswith(
         "HTTP 404 Not found: '{0}' when including '{0}'".format(url))