[Ironpython-users] SymPy and IronPython 2.7.4

Pawel Jasinski pawel.jasinski at gmail.com
Mon Apr 7 20:42:06 CEST 2014


this looks like https://ironpython.codeplex.com/workitem/34551 which
is fixed post 2.7.4.
Can you try 2.7.5b1 https://ironpython.codeplex.com/releases/view/115611 ?

On Mon, Apr 7, 2014 at 12:03 PM, Andrew Ayre <andy at britishideas.com> wrote:
> Hello,
>
> I have embedded IronPython 2.7.4 into a .NET 4.0 C# application. I can
> enter and run scripts and I also have an interactive console. It's
> working great and I have no issues... until I tried to use SymPy.
>
> I've asked for help from the SymPy people but they don't have any
> experience with IronPython.
>
> I have a subfolder called PythonLib into which I have copied the 2.7
> standard libraries. Importing from these works:
>
> ========================================================
>>>>import xml.dom
>>>>
> ========================================================
>
> So I have copied SymPy into PythonLib as well (e.g. I have
> \PythonLib\sympy\__init__.py).
>
> Here is the first issue:
>
> ========================================================
>>>>import sympy
>
> Traceback (most recent call last):
>   File "<string>", line 1, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\__init__.py",
> line 32, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy
> \core\__init__.py", line 8, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\expr.py",
> line 7, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\evalf.py",
> line 27, in <module>
>   File
> "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\containers.py",
> line 14, in <module>
>   File
> "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\utilities\__init__.py", line
> 17, in <module>
>   File
> "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\utilities\timeutils.py",
> line 11, in <module>
>   File
> "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\compatibility.py", line
> 110, in u
> TypeError: unicode_escape_decode() takes no arguments (1 given)
> ========================================================
>
> I can't find any description of what unicode_escape_decode does. It
> seems to be a built-in function? In general SymPy is passing a string to
> it to be decoded so it appears to make sense that the function has an
> argument.
>
> I've worked around this with the following:
>
> ========================================================
>>>>import codecs
>>>>def my_unicode_escape_decode(x):
> ...    return x
> ...
>>>>codecs.unicode_escape_decode = my_unicode_escape_decode
> ========================================================
>
> Now I get attribute errors. Here is the result of running several
> imports. Can anyone please give me some pointers as to what might be the
> issue? I'm thinking it is something to do with my environment or the way
> I am embedded IronPython. Thanks! Andy
>
> ========================================================
>>>>import sympy
>
> Traceback (most recent call last):
>   File "<string>", line 1, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\__init__.py",
> line 32, in <module>
>   File
> "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\__init__.py",
> line 8, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\expr.py",
> line 7, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\evalf.py",
> line 9, in <module>
> AttributeError: 'module' object has no attribute 'mpmath'
>
>>>>import sympy.mpmath.libmp as libmp
>
> Traceback (most recent call last):
>   File "<string>", line 1, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\__init__.py",
> line 34, in <module>
>   File
> "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\assumptions\__init__.py",
> line 2, in <module>
>   File
> "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\assumptions\ask.py",
> line 323, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\cache.py",
> line 93, in wrapper
>   File
> "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\function.py",
> line 185, in __new__
> ImportError: No module named fancysets
>
>>>>from sympy.sets.fancysets import Naturals0
>
> Traceback (most recent call last):
>   File "<string>", line 1, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\__init__.py",
> line 32, in <module>
>   File
> "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\__init__.py",
> line 8, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\expr.py",
> line 7, in <module>
>   File "C:\Users\Andy\Documents\ADScript\PythonLib\sympy\core\evalf.py",
> line 9, in <module>
> AttributeError: 'module' object has no attribute 'mpmath'
>
>
>>>>sys.path
>
> ['.', 'C:\\Users\\Andy\\Documents\\ADScript\\bin\\Debug\\Lib',
> 'C:\\Users\\Andy\\Documents\\ADScript\\bin\\Debug\\DLLs',
> 'C:\\Users\\Andy\\Documents\\ADScript\\bin\\Debug\\PythonLib',
> '../../PythonLib']
> ========================================================
>
> --
> Andy
> PGP Key ID: 0xDC1B5864
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