C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// """Tracing metaclass. XXX This is very much a work in progress. """ import types, sys class TraceMetaClass: """Metaclass for tracing. Classes defined using this metaclass have an automatic tracing feature -- by setting the __trace_output__ instance (or class) variable to a file object, trace messages about all calls are written to the file. The trace formatting can be changed by defining a suitable __trace_call__ method. """ __inited = 0 def __init__(self, name, bases, dict): self.__name__ = name self.__bases__ = bases self.__dict = dict # XXX Can't define __dict__, alas self.__inited = 1 def __getattr__(self, name): try: return self.__dict[name] except KeyError: for base in self.__bases__: try: return base.__getattr__(name) except AttributeError: pass raise AttributeError, name def __setattr__(self, name, value): if not self.__inited: self.__dict__[name] = value else: self.__dict[name] = value def __call__(self, *args, **kw): inst = TracingInstance() inst.__meta_init__(self) try: init = inst.__getattr__('__init__') except AttributeError: init = lambda: None apply(init, args, kw) return inst __trace_output__ = None class TracingInstance: """Helper class to represent an instance of a tracing class.""" def __trace_call__(self, fp, fmt, *args): fp.write((fmt+'\n') % args) def __meta_init__(self, klass): self.__class = klass def __getattr__(self, name): # Invoked for any attr not in the instance's __dict__ try: raw = self.__class.__getattr__(name) except AttributeError: raise AttributeError, name if type(raw) != types.FunctionType: return raw # It's a function fullname = self.__class.__name__ + "." + name if not self.__trace_output__ or name == '__trace_call__': return NotTracingWrapper(fullname, raw, self) else: return TracingWrapper(fullname, raw, self) class NotTracingWrapper: def __init__(self, name, func, inst): self.__name__ =