Helper to provide extensibility for pickle/cPickle.
 
This is only useful to add pickle support for extension types defined in
C, not for instances of user-defined classes.

Functions
		__newobj__(cls, *args) add_extension(module, name, code) Register an extension code. clear_extension_cache() constructor(object) pickle(ob_type, pickle_function, constructor_ob=None) pickle_complex(c) remove_extension(module, name, code) Unregister an extension code.  For testing only.

Data
		__all__ = ['pickle', 'constructor', 'add_extension', 'remove_extension', 'clear_extension_cache'] dispatch_table = {<type 'code'>: <function pickle_code>, <type '_sre.SRE_Pattern'>: <function _pickle>, <type 'complex'>: <function pickle_complex>, <type 'posix.stat_result'>: <function _pickle_stat_result>, <type 'posix.statvfs_result'>: <function _pickle_statvfs_result>, <type 'parser.st'>: <built-in function _pickler>}