I expect you could combine the following with decorators as an easy way
to grab a function's locals just before it exits... you could also use
exec or eval to execute code in the function's local namespace.
---------------------------------------
# Try it:
def trace_returns(frame, event, arg):
if event == 'return':
print "[frame locals just before return: %s]" % frame.f_locals
return trace_returns
def foo(a, b):
return a + b
import sys
sys.settrace(trace_returns)
foo(1,2)
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