[New-bugs-announce] [issue15482] __import__() change between 3.2 and 3.3

[Ronan Lamy]

New submission from Ronan Lamy:

I noticed a change in the behaviour of __import__() between 3.2 and 3.3. It looks like in 3.2 __import__() does a Py2-style combo relative/absolute import. Here's a minimal test case:

$ ls foo
bar.py  __init__.py  __pycache__
$ cat foo/__init__.py
__import__('bar', globals(), locals())
$ python3.3 -c "import foo"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "./foo/__init__.py", line 1, in <module>
    __import__('bar', globals(), locals())
ImportError: No module named 'bar'
$ python3.2 -c "import foo"
$

I believe that 3.3 is correct and that 3.2 is wrong but can't be changed now, so I suppose that 3.2 should just document the actual behaviour of __import__() and 3.3 should document the change. 

(The context is that I encountered issue 15434. This looks related, but I'm not sure it is.)

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assignee: docs at python
components: Documentation, Interpreter Core
messages: 166706
nosy: Ronan.Lamy, brett.cannon, docs at python, ncoghlan
priority: normal
severity: normal
status: open
title: __import__() change between 3.2 and 3.3
versions: Python 3.2, Python 3.3

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15482>
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