import linecache
import traceback
import sys
import ast

def do_evil(*args):
    # find the line that ends the function invocation
    srcfile, num, _, _ = traceback.extract_stack()[-2]
    # find the name of the function
    funcname = sys._getframe().f_code.co_name

    # seek backwards until we have the whole call
    line = ""
    while funcname not in line:
        line = linecache.getline(srcfile, num) + line
        num -= 1

    # trim off before the call
    invocation = line.rfind(funcname)
    line = line[invocation:]

    # find the paren that closes the call
    i = line.find('(') + 1
    stack = 1
    while stack > 0:
        if line[i] == ')': stack -= 1
        if line[i] == '(': stack += 1
        i += 1
    line = line[:i]

    # parse what's left into an ast
    argnames = []
    for arg in ast.parse(line).body[0].value.args:
        argnames.append(arg.id)

    # show off
    return zip(argnames, args)

x = 1
y = 2
print do_evil(x, y)
# prints [('x', 1), ('y', 2)]