New submission from Daniel Holth <dho...@fastmail.fm>: The io documentation says:
IOBase is also a context manager and therefore supports the with statement. In this example, file is closed after the with statement’s suite is finished—even if an exception occurs: with open('spam.txt', 'w') as file: file.write('Spam and eggs!') I read this to mean that my own subclass of io.BufferedIOBase would call close() when used as a context manager. Instead, it is necessary to provide an implementation of __exit__ that calls close() to get this behavior. The documentation lists Mixin Methods, but I couldn't find a definition of the term "Mixin Methods" in the docs. ---------- components: IO messages: 366032 nosy: dholth priority: normal severity: normal status: open title: confusing documentation for IOBase.__exit__ versions: Python 3.7 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue40235> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com