finding out the call (and not only the caller)

[Francesco Guerrieri]

Hi,

Today I've been thinking a bit about the "python internals". Inspired
by this recipe:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/66062
I found out a little problem which haven't been able to solve.
In short, is there a way to find out how a given name lookup was started?
It is not enough to know the name of the caller as given by the recipe.

a little example:
import inspect

class test(object):
    def __init__(self, a_list):
        self.my_list = a_list
    def info(self):
        for counter, item in
enumerate(inspect.getouterframes(inspect.currentframe())):
            print counter, item
        return self.my_list
     data = property(info)

if __name__ == '__main__':
    a = test([1111,2222])
    def g(a_seq):
        for item in a_seq:
            print item, '\n'
    g(a.data)

This prints
0 (<frame object at 0x00B58B08>, 'myfile.py', 10, 'info', ['
for counter, item in
enumerate(inspect.getouterframes(inspect.currentframe())):\n'], 0)
1 (<frame object at 0x00A5B000>, 'myfile.py', 38, '<module>', ['
g(a.data)\n'], 0)
1111
2222

What I would like is a reference to g itself, and not only to
'<module>' which is the caller according to f_code.co_name.
I thought of manually parsing the string '    g(a.data)\n' to extract
the name but I'm sure that it would be a rather fragile approach, and
so I decided that it was time to ask for help :-)
To 'get a feeling', I tried to disassemble the code:

    code = compile('g(a.data)', 'test', 'single')
    dis.dis(code)

and this is the result

0 LOAD_NAME                0 (g)
3 LOAD_NAME                1 (a)
6 LOAD_ATTR                2 (data)
9 CALL_FUNCTION            1
12 PRINT_EXPR
13 LOAD_CONST               0 (None)
16 RETURN_VALUE

So ... I'm looking for the first name loaded. Is there a reference to
it, somewhere?

Francesco