import new fails

[illume]

BPO	6964
Nosy	@brettcannon, @birkenfeld, @benjaminp

^{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/benjaminp'
closed_at = <Date 2009-09-22.20:33:52.241>
created_at = <Date 2009-09-22.09:16:47.076>
labels = ['type-bug', 'expert-2to3']
title = 'import new fails'
updated_at = <Date 2012-07-22.08:47:24.624>
user = 'https://bugs.python.org/illume'

bugs.python.org fields:

activity = <Date 2012-07-22.08:47:24.624>
actor = 'techtonik'
assignee = 'benjamin.peterson'
closed = True
closed_date = <Date 2009-09-22.20:33:52.241>
closer = 'brett.cannon'
components = ['2to3 (2.x to 3.x conversion tool)']
creation = <Date 2009-09-22.09:16:47.076>
creator = 'illume'
dependencies = []
files = []
hgrepos = []
issue_num = 6964
keywords = []
message_count = 6.0
messages = ['92974', '92976', '92978', '93016', '93032', '166110']
nosy_count = 6.0
nosy_names = ['brett.cannon', 'georg.brandl', 'illume', 'techtonik', 'quentin.gallet-gilles', 'benjamin.peterson']
pr_nums = []
priority = 'normal'
resolution = 'wont fix'
stage = None
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue6964'
versions = ['Python 3.1']

[illume]

python3.1

>>> import new
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named new

2to3-3.1 doesn't mention how to change it.

[quentingallet-gilles]

The 'new' module has been removed in python 3.0. The documentation
advices you to use the 'types' modules instead
(http://docs.python.org/library/new.html).

I'm also pretty sure you get a message for this module if you enable the
warnings at interpreter startup in python 2.6.

[illume]

Hi,

yes it does report a warning with 2.6, thanks.

python2.6 -3 -c "import new"
-c:1: DeprecationWarning: The 'new' module has been removed in Python
3.0; use the 'types' module instead.

I guess it should be a TODO item with 2to3.

cheers,

[brettcannon]

Benjamin can re-open if he wants, but having 2to3 emit warnings about
deprecated modules is not what it is meant to do. 2to3 is supposed to only
be run once you are running against 2.6 w/ no DeprecationWarning or
Py3KWarning being raised, which would have covered this issue.

If the docs don't make this clear then they need to be changed to do so
(and that should be a new issue anyway).

[birkenfeld]

Bottom line: move over to the types module *before* running 2to3.

[techtonik]

Damn it. I've run 2to3 during setup.py phase and went smoothly, but when I run examples the package fails.

It should at least warn about this "import new". It should not be that hard to catch.