How to invalidate the cache

[emorozov]

I can't find a way to invalidate a cache (specifically, methodcache) entierly. I have a test suite that is run in random order using pytest-randomly, and I need a way to clear all caches between individual test runs, otherwise tests become flaky due to stale cache.

[awolverp]

Hi, you can directly access the cache of the cached function or method and clear, or invalidate a key

# Clear cache
MyClass.method.cache.clear()
# invalidate a key
MyClass.method.cache.pop("key")