[IronPython] Issue Triage

[Richard Nienaber]

> I usually start import bugs by trying to re-create a simple repro of the
issue and then work from there.

I've managed to get as far as this point. I've tried to boild down the
problem to a simple test case which I've added to the
issue<http://ironpython.codeplex.com/workitem/26426>.
What seems to be happening is this:

   - import sympy is called
   - sympy import gets to simpify.py, imports decimal (stdlib) which then
   imports numbers.py (stdlib)
   - sympy import gets to function.py, which attempts to import Integer from
   numbers (sympy)
      - It fails here because it tries to import Integer from numbers.py
      (stdlib)


The test case works in 2.6.2 but fails in 2.7b1 which seems to indicate a
regression. I tried importing the sympy library in 2.6.2 but it fails
with: ImportError: No module named signal

Richard


On Sun, Jan 30, 2011 at 9:16 PM, Dino Viehland <dinov at microsoft.com> wrote:

>  There’s probably an Integer.py somewhere in sympy and this is probably an
> import bug.  If someone was particularly ambitious they could re-write
> import by porting CPython’s import to IronPython – viola, no more import
> bugs! J
>
>
>
> Otherwise it’s all about figuring out how we’re differing in import
> semantics – I usually start import bugs by trying to re-create a simple
> repro of the issue and then work from there.  I always thought import bugs
> but if you look at the CPython source code it might be much easier.
>
>
>
> *From:* users-bounces at lists.ironpython.com [mailto:
> users-bounces at lists.ironpython.com] *On Behalf Of *Bruce Bromberek
> *Sent:* Sunday, January 30, 2011 12:22 PM
> *To:* Discussion of IronPython
> *Subject:* [IronPython] Issue Triage
>
>
>
> I though I'd help by going through any issues tagged with High importance,
> unassigned, starting with ones from previous releases and seeing is they are
> still relevant.
>
> Issue 26426,  which involves sympy (algebraic manipulation) under
> ironpython.  With the most recent git version of sympy and IronPython 2.7B1,
> I get a better error message.
>
>
>
> C:\GITHUB\sympy>"c:\Program Files\IronPython 2.7\ipy.exe"
>
> IronPython 2.7 Beta 1 (2.7.0.10) on .NET 4.0.30319.1
>
> Type "help", "copyright", "credits" or "license" for more information.
>
> >>> import sympy
>
> Traceback (most recent call last):
>
>   File "<stdin>", line 1, in <module>
>
>   File "C:\GITHUB\sympy\sympy\__init__.py", line 30, in <module>
>
>   File "C:\GITHUB\sympy\sympy\core\__init__.py", line 8, in <module>
>
>   File "C:\GITHUB\sympy\sympy\core\expr.py", line 1008, in <module>
>
>   File "C:\GITHUB\sympy\sympy\core\mul.py", line 962, in <module>
>
>   File "C:\GITHUB\sympy\sympy\core\power.py", line 806, in <module>
>
>   File "C:\GITHUB\sympy\sympy\core\add.py", line 516, in <module>
>
>   File "C:\GITHUB\sympy\sympy\core\symbol.py", line 6, in <module>
>
>   File "C:\GITHUB\sympy\sympy\logic\__init__.py", line 1, in <module>
>
>   File "C:\GITHUB\sympy\sympy\logic\boolalg.py", line 4, in <module>
>
>   File "C:\GITHUB\sympy\sympy\core\function.py", line 1091, in <module>
>
> ImportError: Cannot import name Integer
>
>
>
>
>
> Line 1091 is :
>
> from numbers import Rational, Integer
>
>
>
> I though the issue was 'Integer' as a reserved word in Ironpython.
>  However, I can create a function or a class named Integer in
> the interpreter without a problem.  Now I'm stuck.  Any thoughts on how to
> proceed
>
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