George Sakkis wrote:
> Thanks, that's the closest to what I wanted. A minor point I didn't
> quite get from the documentation is how to set a local trace instead
of
> a global (sys) trace.
You never do. "Local" in this context only means that those local trace
functions are called inside the one global trace-function and return
the global trace function again.
In Lonnies example there are no local-trace functions at all.
> Also, there's no sys.gettrace() to return the
> current tracer; is there a way around this ?
The default tracer is None i.e. no debugging. The programmer has to
control his tracer which might not be to hard:
class Analyzer:
def trace_returns(self, frame, event, arg):
if event == 'return':
self.func_locals = frame.f_locals
return self.trace_returns
def analyzeLocals(self, func,*args,**kw):
sys.settrace(self.trace_returns)
func(*args,**kw)
sys.settrace(None)
Ciao,
Kay
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