Improve URLError reporting

[manelclos]

From the mailing list:

Hi David,

Your url is not valid or Tilecache cannot contact the server. Check your url is valid. If you are using a proxy think about defining http_proxy and no_proxy variables.

Manel Clos

-----Mensaje original-----
De: tilecache-bounces at lists.osgeo.org [mailto:tilecache-bounces at lists.osgeo.org] En nombre de David Alda Fernandez de Lezea
Enviado el: jueves, 21 de noviembre de 2013 8:34
Para: tilecache at lists.osgeo.org
Asunto: [Tilecache] Error while creating tiles on the fly.

Hi list,

I've noticed that I'm getting the following tilecache error while navigating through the map and creating the tiles on the fly:

An error occurred: <urlopen error (11001, 'getaddrinfo failed')>
File "c:\python25\lib\site-packages\TileCache-2.11-py2.5.egg\TileCache\Service.py", line 256, in modPythonHandler
host )
File "c:\python25\lib\site-packages\TileCache-2.11-py2.5.egg\TileCache\Service.py", line 208, in dispatchRequest
return self.renderTile(tile, params.has_key('FORCE'))
File "c:\python25\lib\site-packages\TileCache-2.11-py2.5.egg\TileCache\Service.py", line 138, in renderTile
data = layer.render(tile, force=force)
File "c:\python25\lib\site-packages\TileCache-2.11-py2.5.egg\TileCache\Layer.py", line 444, in render
return self.renderTile(tile)
File "c:\python25\lib\site-packages\TileCache-2.11-py2.5.egg\TileCache\Layers\WMS.py", line 29, in renderTile
tile.data, response = wms.fetch()
File "c:\python25\lib\site-packages\TileCache-2.11-py2.5.egg\TileCache\Client.py", line 59, in fetch
response = self.client.open(urlrequest)
File "C:\Python25\lib\urllib2.py", line 374, in open
response = self._open(req, data)
File "C:\Python25\lib\urllib2.py", line 392, in _open
'_open', req)
File "C:\Python25\lib\urllib2.py", line 353, in _call_chain
result = func(*args)
File "C:\Python25\lib\urllib2.py", line 1101, in http_open
return self.do_open(httplib.HTTPConnection, req)
File "C:\Python25\lib\urllib2.py", line 1076, in do_open
raise URLError(err)

Any idea what could be happening?