New submission from Ariel Ben-Yehuda <[email protected]>:
Hello, I think there is a problem with Python 2.7: I installed it, and tried to
compile GObject-Introspection 0.9.2. Here is the result:
...
GISCAN GLib-2.0.gir
Traceback (most recent call last):
File "../tools/g-ir-scanner", line 36, in <module>
from giscanner.scannermain import scanner_main
File "/sources/gobject-introspection-0.9.2/giscanner/scannermain.py", line
31, in <module>
from giscanner.dumper import compile_introspection_binary
File "/sources/gobject-introspection-0.9.2/giscanner/dumper.py", line 26, in
<module>
from .glibtransformer import IntrospectionBinary
File "/sources/gobject-introspection-0.9.2/giscanner/glibtransformer.py",
line 34, in <module>
from .transformer import Names
File "/sources/gobject-introspection-0.9.2/giscanner/transformer.py", line
31, in <module>
from .girparser import GIRParser
File "/sources/gobject-introspection-0.9.2/giscanner/girparser.py", line 32,
in <module>
from .girwriter import COMPATIBLE_GIR_VERSION
File "/sources/gobject-introspection-0.9.2/giscanner/girwriter.py", line 30,
in <module>
from .xmlwriter import XMLWriter
File "/sources/gobject-introspection-0.9.2/giscanner/xmlwriter.py", line 70,
in <module>
with LibtoolImporter:
AttributeError: __exit__
Oops, no GObject-Introspection for me. Investigating the bug, I looked in the
recent changes in Python2.7 for something interesting, and found this:
A new opcode was added to perform the initial setup for with statements,
looking up the __enter__() and __exit__() methods. (Contributed by Benjamin
Peterson.)
Finally, I made 3 test cases to the bug. All 3 produce no input in Python 2.6,
but crash pretty nicely in 2.7, the first 2 not finding __exit__ and the last
missing __enter__.
I will try to make a patch, however my CPython skills are not so great, so you
will probably make a better one.
----------
components: Interpreter Core
files: tests.tar.xz
messages: 110268
nosy: arielbyd
priority: normal
severity: normal
status: open
title: Python 2.7 breaks assigned __exit__s
versions: Python 2.7
Added file: http://bugs.python.org/file17996/tests.tar.xz
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<http://bugs.python.org/issue9259>
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