Given code like the following
```
class Foo:
@process_cached
def bar(self):
pass
```
In Python 3.8 referencing `bar` would not call its `__get__` method.
```
x = Foo().bar
```
However in Python 3.11, making the same call would call the `__get__`
method, permanently replacing the underlying `process_cached` object
with the partial function that references it.
This meant that code to clear the cache would work in Python 3.8 but
would break in 3.11
```
Foo().bar.cache.clear() # Works in 3.8 but not in 3.11
```
In 3.11 this results in the following error:
```
E AttributeError: 'functools.partial' object has no attribute 'cache'
```
To make this compatible in both version, we just add the cache as an
accessible attribute on the partial we generate for our wrapped
function.
Open edX -------- This is the root package for Open edX. The intent is that all importable code from Open edX will eventually live here, including the code in the lms, cms, and common directories. If you're adding a new Django app, place it in core/djangoapps. If you're adding utilities that require Django, place them in core/djangolib. If you're adding code that defines no Django models or views of its own but is widely useful, put it in core/lib. Note: All new code should be created in this package, and the legacy code will be moved here gradually. For now the code is not structured like this, and hence legacy code will continue to live in a number of different packages.