python - Non-graphical output from pycallgraph -

i've started writing small python utility cache functions. available caching tools (lru_cache, beaker) not detect changes of sub-functions.

for this, need call graph. there exists excellent tool in pycallgraph gerald kaszuba. however, far i've got output function-name strings. need either function-objects or function-code-hashes.

what mean these 2 terms: let def foo(x): return x, foo function-object, , hash(foo.__code__.co_code) function-code-hash.

what have

you can see have here. below minimal example. problem have in example, can't go function name (the string) function definition again. i'm trying eval(func).

so, guess there 2 ways of solving this:

1. proper pycallgraph.output, or otherway want directly pycallgraph.
2. dynamically loading function function.__name__ string.

---

import unittest pycallgraph import pycallgraph pycallgraph.output import graphvizoutput  class callgraph:     def __init__(self, output_file='callgraph.png'):         self.graphviz = graphvizoutput()         self.graphviz.output_file = output_file      def execute(self, function, *args, **kwargs):         pycallgraph(output=self.graphviz):             ret = function(*args, **kwargs)          self.graph = dict()         node in self.graphviz.processor.nodes():             if node.name != '__main__':                 f = eval(node.name)                 self.graph[node.name] = hash(f.__code__.co_code)         return ret      def unchanged(self):         '''checks each function in callgraph whether has changed.         returns true if function have original code-hash. false otherwise.         '''         func, codehash in self.graph.iteritems():             f = eval(func)             if hash(f.__code__.co_code) != codehash:                 return false         return true  def func_inner(x):     return x def func_outer(x):     return 2*func_inner(x)  class callgraphtest(unittest.testcase):     def testchanges(self):         cg = callgraph()         y = cg.execute(func_outer, 3)         self.assertequal(6, y)         self.asserttrue(cg.unchanged())         # change 1 of functions         def func_inner(x):             return 3+x         self.assertfalse(cg.unchanged())         # change back!         def func_inner(x):             return x         self.asserttrue(cg.unchanged())   if __name__ == '__main__':     unittest.main() 

i've solved patching tracer.py appropriate hashes.

         # work out current function or method          func_name = code.co_name +        func_hash = hash(code.co_code) 

i calculating value function name saved. later on, you'd need save value. doing dictionary func_name key , hash value. in function nodes created assigning new field in stat_group.