Pablo Galindo Salgado <pablog...@gmail.com> added the comment:
This doesn't look like a bug to me and is documented behavior: https://docs.python.org/3/reference/datamodel.html#object.__del__ Check this paragraph: Warning Due to the precarious circumstances under which __del__() methods are invoked, exceptions that occur during their execution are ignored, and a warning is printed to sys.stderr instead. In particular: __del__() can be invoked when arbitrary code is being executed, including from any arbitrary thread. If __del__() needs to take a lock or invoke any other blocking resource, it may deadlock as the resource may already be taken by the code that gets interrupted to execute __del__(). __del__() can be executed during interpreter shutdown. As a consequence, the global variables it needs to access (including other modules) may already have been deleted or set to None. Python guarantees that globals whose name begins with a single underscore are deleted from their module before other globals are deleted; if no other references to such globals exist, this may help in assuring that imported modules are still available at the time when the __del__() method is called. ---- Here, the object __del__ should take s strong reference to whatever is going to use to ensure is available when needed. Indeed, the standard library does this regularly, for example: https://github.com/python/cpython/blob/f4c03484da59049eb62a9bf7777b963e2267d187/Lib/asyncio/windows_utils.py#L110 I am closing it as "not a bug" but feel free to reopen if we think we missed something or I misinterpret the bug report. ---------- nosy: +pablogsal resolution: -> not a bug stage: -> resolved status: open -> closed _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46256> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
