New issue 422: Document ExceptionInfo.value https://bitbucket.org/hpk42/pytest/issue/422/document-exceptioninfovalue
Jurko Gospodnetić: I have not been able to find any documentation on how the actual exception raised during a pytest.raises() call can be accessed. A little research points to the ExceptionInfo.value attribute. The docs should be updated to describe the ExceptionInfo.value attribute. They should also be updated to include a note, similar to one already present in regular Python documentation, about having to explicitly delete all local references to the received ExceptionInfo instance. Those references are part of a reference cycle (exception --> stack frame raising the exception --> current stack frame --> locals --> exception_info --> exception) which, unless explicitly broken, will cause all objects in that cycle not to be garbage collected until potentially a much later time. YMMV, but this increases the test code memory footprint and possibly slows down the tests in case they can not finish until some finalizer code has run. Hope this helps. Best regards, Jurko Gospodnetić _______________________________________________ pytest-commit mailing list pytest-commit@python.org https://mail.python.org/mailman/listinfo/pytest-commit
