Ticket #714 (defect)

I have viewed the source around cherrypy/lib/caching.py

"""
    If POST, PUT, or DELETE:
        * invalidates (deletes) any cached response for this resource
        * sets request.cached = False
        * sets request.cacheable = False
"""
(blablabla
"""
    # POST, PUT, DELETE should invalidate (delete) the cached copy.
    # See http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html#sec13.10.
    if request.method in invalid_methods:
        cherrypy._cache.delete()
        request.cached = False
        request.cacheable = False
        return False
"""

the default class MemoryCache? delete method doesn't handle the possibility that obj doesn't exist, it will raise exceptions.KeyError?, this should be easy to fix

class MemoryCache:
    ...
    def delete(self):
        self.cache.pop(self.key, None)