def registerfeed(slug, in_std=False):
 def registerdecorator(feed):
  if in_std:
   if in_std is True:
        in_std = [None]
  return feed
 return registerdecorator

print 'this will fail'
try:
 @registerfeed('asd')
 def t():
  pass
except Exception, e:
 print 'failed',
 print e
else:
 print 'Not failed'

def registerfeed(slug, in_std=False):
 def registerdecorator(feed):
  in_std = [None]
  return feed
 return registerdecorator

print
print 'this won\'t fail'
try:
 @registerfeed('asd')
 def t():
  pass
except Exception, e:
 print 'failed',
 print e
else:
 print 'Not failed'

def registerfeed(slug, in_std=False):
 def registerdecorator(feed):
  if in_std:
   if in_std is True:
    tmp = [None]
   else:
    tmp = in_std
  return feed
 return registerdecorator

print 'this won\'t fail either'
try:
 @registerfeed('asd')
 def t():
  pass
except Exception, e:
 print 'failed',
 print e
else:
 print 'Not failed'