HTTP404 causes too much of logs

When cache page contains deadlink (404) to the image, it causes unnecessary massive amount of logs and even Traceback, e.g.:
139321       INFO downloader           Sending request to http://www.geocaching.com/seek/cache_details.aspx?wp=GCMEJY // downloader.py:122
145577      DEBUG downloader           Got gzip encoded answer // downloader.py:154
145580      DEBUG cachedownloader      Start parsing, pmin = 5.000000, pmax = 6.000000. // cachedownloader.py:358
145810       INFO cachedownloader      No website link found, skipping. // cachedownloader.py:387
146027      DEBUG core                 Progress: 5.200000 of 35.000000 // core.py:893
$  14% Fetching logs...
146031       INFO downloader           Sending request to http://www.geocaching.com/seek/geocache.logbook?tkn=&idx=1&num=10&decrypt=true // downloader.py:122
147454      DEBUG downloader           Got unencoded answer // downloader.py:157
147465      DEBUG cachedownloader      Start json logs parsing // cachedownloader.py:929
147476      DEBUG cachedownloader      Read 0 log entries // cachedownloader.py:946
147741      DEBUG core                 Progress: 5.500000 of 35.000000 // core.py:893
$  15% Images (1/2)...
147744       INFO cachedownloader      Downloading http://img.geocaching.com/cache/large/c97f9bde-6772-409a-9e9b-a733fecef3bd.jpg to /media/mmc1//geocaches/GCMEJY-image0.jpg // cachedownloader.py:583
147747       INFO downloader           Sending request to http://img.geocaching.com/cache/large/c97f9bde-6772-409a-9e9b-a733fecef3bd.jpg // downloader.py:122
148488      DEBUG downloader           Got unencoded answer // downloader.py:157
150921      DEBUG core                 Progress: 5.750000 of 35.000000 // core.py:893
$  16% Images (2/2)...
150935       INFO cachedownloader      Downloading http://counter.foocounter.com/counter/1108664710/miniscu to /media/mmc1//geocaches/GCMEJY-image1.img // cachedownloader.py:583
150953       INFO downloader           Sending request to http://counter.foocounter.com/counter/1108664710/miniscu // downloader.py:122
152136      ERROR cachedownloader      HTTP Error 404: Not Found // cachedownloader.py:591
Traceback (most recent call last):
  File "/opt/agtl-maemo/cachedownloader.py", line 588, in _parse_cache_page
f.write(self.downloader.get_reader(url, login = False).read())
  File "/opt/agtl-maemo/downloader.py", line 129, in get_reader
resp = urlopen(req)
  File "/usr/lib/python2.5/urllib2.py", line 124, in urlopen
return _opener.open(url, data)
  File "/usr/lib/python2.5/urllib2.py", line 387, in open
response = meth(req, response)
  File "/usr/lib/python2.5/urllib2.py", line 498, in http_response
'http', request, response, code, msg, hdrs)
  File "/usr/lib/python2.5/urllib2.py", line 425, in error
return self._call_chain(*args)
  File "/usr/lib/python2.5/urllib2.py", line 360, in _call_chain
result = func(*args)
  File "/usr/lib/python2.5/urllib2.py", line 506, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 404: Not Found
152179      ERROR cachedownloader      Failed to download image from URL http://counter.foocounter.com/counter/1108664710/miniscu // cachedownloader.py:592
danielfett / advancedcaching

HTTP404 causes too much of logs #163
