python -O does not find *.pyo files

[marco-buttu]

BPO	16046
Nosy	@brettcannon, @birkenfeld, @ncoghlan, @vstinner, @benjaminp, @marco-buttu

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = 'https://github.com/birkenfeld'
closed_at = <Date 2012-09-25.15:40:20.115>
created_at = <Date 2012-09-25.14:02:05.511>
labels = ['interpreter-core', 'type-bug', 'release-blocker']
title = 'python -O does not find *.pyo files'
updated_at = <Date 2012-09-29.07:27:37.663>
user = 'https://github.com/marco-buttu'

bugs.python.org fields:

activity = <Date 2012-09-29.07:27:37.663>
actor = 'python-dev'
assignee = 'georg.brandl'
closed = True
closed_date = <Date 2012-09-25.15:40:20.115>
closer = 'georg.brandl'
components = ['Interpreter Core']
creation = <Date 2012-09-25.14:02:05.511>
creator = 'marco.buttu'
dependencies = []
files = []
hgrepos = []
issue_num = 16046
keywords = ['3.3regression']
message_count = 8.0
messages = ['171276', '171287', '171288', '171289', '171290', '171291', '171372', '171553']
nosy_count = 7.0
nosy_names = ['brett.cannon', 'georg.brandl', 'ncoghlan', 'vstinner', 'benjamin.peterson', 'python-dev', 'marco.buttu']
pr_nums = []
priority = 'release blocker'
resolution = 'fixed'
stage = None
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue16046'
versions = ['Python 3.3']

[marco-buttu]

$ echo "print(__file__)" > foo.py
$ python3.3 -O -m foo
/home/marco/temp/foo.py
$ ls
foo.py  __pycache__
$ rm foo.py
$ mv __pycache__/foo.cpython-33.pyo foo.pyo
$ rm __pycache__ -r
$ ls
foo.pyo
# The following works in Python3.2, but not in Python 3.3.0rc3
$ python3.3 -O -m foo
/usr/local/bin/python3.3: No module named foo

[python-dev]

New changeset 4de5e4ec3cff by Benjamin Peterson in branch 'default':
don't depend on __debug__ because it's baked in at freeze time (issue bpo-16046)
http://hg.python.org/cpython/rev/4de5e4ec3cff

[benjaminp]

This "tested" in the sense if you run test_import with -O, it fails. We ought to have a buildbot running with -O.

[benjaminp]

Georg, do you want to take this for 3.3, final?

[birkenfeld]

Looks serious enough, yes.

[birkenfeld]

Transplanted to ff50579241cd.

[vstinner]

It would be nice to have a test.

[python-dev]

New changeset ff50579241cd by Benjamin Peterson in branch 'default':
don't depend on __debug__ because it's baked in at freeze time (issue bpo-16046)
http://hg.python.org/cpython/rev/ff50579241cd