Converted campaign2wiki script to Python 3

data/tools/campaign2wiki.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 # encoding: utf-8
 
 """
@@ -6,15 +6,10 @@ A script that autogenerates some information about campaigns for the
 CampaignInformation wiki page. The script is a WIP.
 """
 
-from __future__ import with_statement   # For python < 2.6
 import os.path, sys
-try:
-    import argparse
-except ImportError:
-    print('Please install argparse by running "easy_install argparse"')
-    sys.exit(1)
+import argparse
 
-import wesnoth.wmlparser2 as wmlparser2
+import wesnoth.wmlparser3 as wmlparser3
 
 
 class Campaign:
@@ -63,7 +58,7 @@ which generates information about campaigns for the wiki.')
     args = arg_parser.parse_args()
 
     output = '{{Autogenerated}} '
-    main = wmlparser2.Parser(args.wesnoth, None, None, False)
+    main = wmlparser3.Parser(args.wesnoth, None, None)
     main.parse_file('data/_main.cfg')
     for campaign in main.get_all(tag='campaign'):
         a = Campaign(campaign)