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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "">
+ <herd>python</herd>
+This is a ground-up rewrite of Perspective Broker, which itself is Twisted's
+native RPC/RMI protocol (Remote Procedure Call / Remote Method Invocation).
+If you have control of both ends of the wire, and are thus not constrained to
+use some other protocol like HTTP/XMLRPC/CORBA/etc, you might consider using
+Fundamentally, Foolscap allows you to make a python object in one process
+available to code in other processes, which means you can invoke its methods
+remotely. This includes a data serialization layer to convey the object
+graphs for the arguments and the eventual response, and an object reference
+system to keep track of which objects you are connecting to. It uses a
+capability-based security model, such that once you create a non-public
+object, it is only accessible to clients to whom you've given the
+(unguessable) FURL. You can of course publish world-visible objects that
+have well-known FURLs.
+ <upstream>
+ <remote-id type="pypi">foolscap</remote-id>
+ </upstream>