[IronPython] Red Flag(?) change in "import"

[Dino Viehland]

This is fixed now.  Apparently there was an invalid optimization that I added - so I removed it.

From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Vernon Cole
Sent: Thursday, February 10, 2011 3:50 PM
To: Discussion of IronPython
Subject: Re: [IronPython] Red Flag(?) change in "import"

Okay, I have filed codeplex issue 30143 for this, with a simple test module which demonstrates the problem.
This completely breaks adodbapi, and would probably kill many other imported modules. I think someone should go in an jack up the priority to high.
IMHO it is a release breaker.  Is not adodbapi still part of the test suite? The failure should have shown up there.
--
Vernon Cole
On Thu, Feb 10, 2011 at 3:42 AM, Federico Vaggi <vaggi at cosbi.eu<mailto:vaggi at cosbi.eu>> wrote:
I ran into a relatively similar problem with importing networkx into IronPython, but was able to fix it by editing out a few of the lines.  It seems that the import behaviour in cpython and ironpython is slightly different sometime.

I can post a list of the steps that I took if it is helpful at all.

Federico

On 09/02/2011 23:45, Vernon Cole wrote:
I can't see an item like this on the bug list. Perhaps the sky is falling, perhaps, not. I am reporting the problem here in case it is. It seems like something the "big guns" should be made aware of right away.  The behavior seems to have changed since IPy 2.6, and if someone has indeed been working on "import" then we have a regression.

First.... here's CPython 2.7 -- I install the package and then import it from another directory...
<console dump>
C:\hg\adodbapi>py27 setup.py install

C:\hg\adodbapi>c:\python27\python.exe setup.py install
adodbapi version="2.4.0.2"
running install
running build
running build_py
copying adodbapi.py -> build\lib\adodbapi
copying ado_consts.py -> build\lib\adodbapi
copying __init__.py -> build\lib\adodbapi
running install_lib
copying build\lib\adodbapi\adodbapi.py -> c:\python27\Lib\site-packages\adodbapi

running install_egg_info
Writing c:\python27\Lib\site-packages\adodbapi-2.4.0.2-py2.7.egg-info

C:\hg\adodbapi>home

C:\hg\adodbapi>C:

C:\hg\adodbapi>cd \Users\vernon
C:\Users\vernon>py27

C:\Users\vernon>c:\python27\python.exe

Python 2.7 (r27:82525, Jul  4 2010, 09:01:59) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import adodbapi
>>> adodbapi.version
'adodbapi v2.4.0.2'
</console>
...................  The version attribute works

Now I try the same thing on an administrator console (I think that IronPython is correct in required the higher privilege here)
and a big THANK YOU for having a working distutils!     ........
<console AS ADMINISTRATOR dump>
C:\hg\adodbapi>ipy setup.py install

C:\hg\adodbapi>"c:\program files\IronPython 2.7\ipy.exe" setup.py install

adodbapi version="2.4.0.2"
running install
running build
running build_py
copying adodbapi.py -> build\lib\adodbapi
copying ado_consts.py -> build\lib\adodbapi
copying __init__.py -> build\lib\adodbapi
warning: build_py: byte-compiling is disabled, skipping.

running install_lib
warning: install_lib: byte-compiling is disabled, skipping.

running install_egg_info
Removing c:\program files\IronPython 2.7\Lib\site-packages\adodbapi-2.4.0.2-py2.
7.egg-info
Writing c:\program files\IronPython 2.7\Lib\site-packages\adodbapi-2.4.0.2-py2.7
.egg-info

C:\hg\adodbapi>home

C:\hg\adodbapi>C:

C:\hg\adodbapi>cd \Users\vernon
C:\Users\vernon>ipy

C:\Users\vernon>"c:\program files\IronPython 2.7\ipy.exe"
IronPython 2.7 Beta 2 (2.7.0.20) on .NET 4.0.30319.1
Type "help", "copyright", "credits" or "license" for more information.
>>> import adodbapi
>>> adodbapi.version
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'version'
</console>
................. Where did the attribute go??????????????

Now I hand copy the adodbapi folder from IronPython 2.7 site-packages into IronPython 2.6 site packages (because 2.6 distutils will not work) and continue with the same admin console...
<console dump continues>
>>> exit()

C:\Users\vernon>ipy26

C:\Users\vernon>"c:\program files\Ironpython 2.6\ipy.exe"
IronPython 2.6.1 (2.6.10920.0) on .NET 2.0.50727.4206
Type "help", "copyright", "credits" or "license" for more information.
>>> import adodbapi
>>> adodbapi.version
'adodbapi v2.4.0.2'
</console>
........................ so it seems to me that "import" is badly broken.  I am unable to test adodbapi.

The code I am testing is at:
hg clone http://adodbapi.hg.sourceforge.net:8000/hgroot/adodbapi/adodbapi#main

Is there anything I should do?
--
Vernon



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