How do I convert a python function/class/module object to a python code object

Question

I have been looking around for some way to convert a function or class or module object in python to a python code object.

A few people accomplish this by doing inspect.getsource() and compile(), but the problem with this is that you are reading a potentially changed file, or if it was composed in the interactive python shell, you will just get an exception on getsource.

I was wondering if anyone else may have a solution to this problem, so it can look something like this:

import dis

def func(arg):
    x = 5
    arg = 3
    return x + arg

code_obj = function_to_code_obj(func)
dis.disassemble(code_obj)

and get the code object disassembly printed out like having created it using compile() or parser.suite()...

Jeannot · Accepted Answer · 2011-07-06 12:58:32Z

4

For a function you can use the func_code attribute:

import dis

def func(arg):
    x = 5
    arg = 3
    return x + arg

def function_to_code_obj(func):
    return func.func_code

code_obj = function_to_code_obj(func)
dis.disassemble(code_obj)

answered Jul 6, 2011 at 12:58

Jeannot

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1 Comment

Bob Frank Over a year ago

thanks, this should be good since the module code and class code is just run once... and I can just get the members after execution.

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