Wikimedia Bugzilla is closed!

If initialisation is going to be slowed down due to server lag, the user should be informed.

$ python pwb.py featured
Sleeping for 120.0 seconds, 2014-08-01 11:02:01
^CTraceback (most recent call last):
  File "pwb.py", line 143, in <module>
    run_python_file(fn, argv, argvu)
  File "pwb.py", line 67, in run_python_file
    exec(compile(source, filename, "exec"), main_mod.__dict__)
  File "scripts/featured.py", line 622, in <module>
    main()
  File "scripts/featured.py", line 603, in main
    for arg in pywikibot.handleArgs():
  File ".../pywikibot/bot.py", line 648, in handleArgs
    init_handlers()
  File ".../pywikibot/bot.py", line 242, in init_handlers
    writelogheader()
  File ".../pywikibot/bot.py", line 274, in writelogheader
    log(u'SITE VERSION: %s' % unicode(site.live_version()))
  File ".../pywikibot/site.py", line 1278, in live_version
    versionstring = self.siteinfo['generator']
  File ".../pywikibot/site.py", line 1184, in siteinfo
    self._getsiteinfo()
  File ".../pywikibot/site.py", line 1116, in _getsiteinfo
    sidata = sirequest.submit()
  File ".../pywikibot/data/api.py", line 505, in submit
    self._data = super(CachedRequest, self).submit()
  File ".../pywikibot/data/api.py", line 405, in submit
    self.site.throttle.lag(int(lag.group("lag")))
  File ".../pywikibot/throttle.py", line 310, in lag
    time.sleep(wait)
KeyboardInterrupt
<type 'exceptions.KeyboardInterrupt'>
CRITICAL: Waiting for 1 network thread(s) to finish. Press ctrl-c to abort

Ideally, server version should be fetched and logged asynchronously.

This is similar to the repo log version, for which was added a config var to bypass. (log_pywiki_repo_version = False)