this stack frame. This creates a cycle, # which will be collected at the next full GC but has # been shown to greatly increase memory usage of # # Break up a reference to itself # for faster GC on CPython. exc_info = None else: future.done(): def inner(f: Any) -> None: # Break a reference cycle to speed GC. f = None # noqa: F841 self.ctx_run(self.run) self.io_loop

this stack frame. This creates a cycle, # which will be collected at the next full GC but has # been shown to greatly increase memory usage of # # Break up a reference to itself # for faster GC on CPython. exc_info = None else: future.done(): def inner(f: Any) -> None: # Break a reference cycle to speed GC. f = None # noqa: F841 self.run() self.io_loop.add_future(self