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class WSGIApp(object):
    POST_PROCESSING_TIMEOUT = 3
    def async_response_handler(self, request, response):
        log.debug('Running async handler')
        time.sleep(2)
        log.debug('Finished async handler')
    def __call__(self, environ, start_response):
        # snip
        log.debug('Dispatching post-response handlers...')
        gevent.spawn(

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import sys
import logging
log = logging.getLogger(__name__)

def fn(*args):
    log.debug('Got %s as args' % (args,))
    log.info('This function does nothing.')
    log.warning("We've run out of Colombian coffee.")
    sys.stderr.write('This is on stderr.\n')
    sys.stdout.write('This is on stdout.\n')

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[31/Mar/2013 13:37:15] "GET /admin/ HTTP/1.1" 500 59
Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/wsgiref/handlers.py", line 85, in run
    self.result = application(self.environ, self.start_response)
  File "/Users/jag/Development/playwithfeincms/venv/lib/python2.7/site-packages/django/core/handlers/wsgi.py", line 241, in __call__
    response = self.get_response(request)
  File "/Users/jag/Development/playwithfeincms/venv/lib/python2.7/site-packages/django/core/handlers/base.py", line 179, in get_response
    response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
  File "/Users/jag/Development/playwithfeincms/venv/lib/python2.7/site-packages/django/core/handlers/base.py", line 224, in handle_uncaught_exception
    if resolver.urlconf_module is None:

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tif_files = []
for filename in files:
    if not filename.endswith('.tif'):
        continue
    tif_files.append(filename)

# ooooorrrrrr....

tif_files = [filename for filename in files if filename.endswith('.tif')]

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map $host $desktop_host {
  default $host;
  ~^m\.(?<domain>.*) $domain;
}

server {
# ... snip ...

if ($desktop_rewrite = perform) {
  rewrite ^(.*)$ http://$desktop_host$1;

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  config.vm.provision :puppet do |puppet|
    puppet.manifests_path = "puppet/manifests"
    puppet.manifest_file  = "vagrant.pp"
    puppet.facter = {
      "dom0_uid" => Process.uid.to_s(),
      "dom0_gid" => Process.gid.to_s(),
    }
  end

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{'query': {'filtered': {'filter': {'range': {'@timestamp': {'to': datetime.datetime(2014, 5, 10, 19, 48, 52), 'from': datetime.datetime(2014, 5, 8, 20, 40, 40)}}, 'term': {'parent_object_id': 2, 'parent_content_type': 2}}, 'query': {'match_all': {}}}}, 'facets': {'content_obj': {'terms': {'fields': ['content_type', 'object_id', 'action'], 'order': 'count'}}}}

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def photoset_as_json(photoset_id):
    # ...
    photoset_obj = PhotoSet.objects.get(pk=photoset_id).select_related('owner').prefetch_related('photo')
    dict_[photos] = [photo_as_json(p) for p in photoset_obj.photo_set.all()]
    dict_[owner] = user_as_json(photoset_obj.owner)
    # ... 
    return dict_

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# N+1 queries
for photoset_obj in PhotoSet.objects.filter(owner=request.user):
    latest_photo_obj = photoset_obj.photo_set.all().order_by('-created')[0]
    yield photoset_obj, latest_photo_obj

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# Django 1.4 only allowed this
episodes = [
    rel.episode for rel in series_obj.episode_relations.order_by('episode__title')
        if rel.episode.showtime_set.filter(start__lte=end_date)
]

# Django 1.7 allows this
episodes = Episode.objects.filter(episoderelation__series=series_obj,
                                  showtime__start__lte=end_date).order_by('title').distinct()