From 551ba20e8ea9a4a97cf63f28b47175e084eb63cd Mon Sep 17 00:00:00 2001 From: Antoine Pitrou Date: Tue, 18 Oct 2011 16:40:50 +0200 Subject: Issue #13188: When called without an explicit traceback argument, generator.throw() now gets the traceback from the passed exception's `__traceback__` attribute. Patch by Petri Lehtinen. --- Lib/test/test_generators.py | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'Lib/test') diff --git a/Lib/test/test_generators.py b/Lib/test/test_generators.py index 3ec209ba87..5f47b3eae0 100644 --- a/Lib/test/test_generators.py +++ b/Lib/test/test_generators.py @@ -1673,6 +1673,32 @@ Traceback (most recent call last): ... ValueError: 7 +Plain "raise" inside a generator should preserve the traceback (#13188). +The traceback should have 3 levels: +- g.throw() +- f() +- 1/0 + +>>> def f(): +... try: +... yield +... except: +... raise +>>> g = f() +>>> try: +... 1/0 +... except ZeroDivisionError as v: +... try: +... g.throw(v) +... except Exception as w: +... tb = w.__traceback__ +>>> levels = 0 +>>> while tb: +... levels += 1 +... tb = tb.tb_next +>>> levels +3 + Now let's try closing a generator: >>> def f(): -- cgit v1.2.1