Verify_School logic not making sense

Hmm. Maybe it's the injector that's the problem. Now I'm wondering if it only supports adding to a function, not overwriting anything in it.

# Python function injection
# By scripthoge at ModTheSims
#
from functools import wraps
import inspect

# method calling injection
def inject(target_function, new_function):
    @wraps(target_function)
    def _inject(*args, **kwargs):
        return new_function(target_function, *args, **kwargs)
    return _inject

# decarator injection.
def inject_to(target_object, target_function_name):
    def _inject_to(new_function):
        target_function = getattr(target_object, target_function_name)
        setattr(target_object, target_function_name, inject(target_function, new_function))
        return new_function
    return _inject_to

def is_injectable(target_function, new_function):
    target_argspec = inspect.getargspec(target_function)
    new_argspec = inspect.getargspec(new_function)
    return len(target_argspec.args) == len(new_argspec.args) - 1

I've never really deeply explored how it works. I probably should.