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diff --git a/Doc/glossary.rst b/Doc/glossary.rst index 92877bd..87e2d8a 100644 --- a/Doc/glossary.rst +++ b/Doc/glossary.rst @@ -402,6 +402,19 @@ Glossary than compiled ones, though their programs generally also run more slowly. See also :term:`interactive`. + interpreter shutdown + When asked to shut down, the Python interpreter enters a special phase + where it gradually releases all allocated resources, such as modules + and various critical internal structures. It also makes several calls + to the :term:`garbage collector <garbage collection>`. This can trigger + the execution of code in user-defined destructors or weakref callbacks. + Code executed during the shutdown phase can encounter various + exceptions as the resources it relies on may not function anymore + (common examples are library modules or the warnings machinery). + + The main reason for interpreter shutdown is that the ``__main__`` module + or the script being run has finished executing. + iterable An object capable of returning its members one at a time. Examples of iterables include all sequence types (such as :class:`list`, :class:`str`, |