import my_package

def method_override():
    return "Foo"

my_package.some_method = method_override

from my_package import some_method

import my_package

def method_override():
    return "Foo"

my_package.some_method.func_code = method_override.func_code

from foo.bar import baz

from bar import baz

from robot.libraries.BuiltIn import BuiltIn
class SeleniumTestLibrary(object):
  def element_should_be_really_visible(self):
    s2l = BuiltIn().get_library_instance('Selenium2Library')
    element = s2l._element_find(locator, True, False)