Example:

import gc

class Foo():
    def __del__(self):
        print('__del__')

f = Foo()
del f

gc.collect()

According to this post #1802, gc.collect() should collect the object after the del and call the finaliser, but the finaliser is never called, any ideas?

I know that a good programming practice is to assume that __del__ may never be called, but hey, this still should work :)