[Ironpython-users] SymPy and IronPython 2.7.4

[Andrew Ayre]

Thanks. Unfortunately I still get the error:

=============================================
>>>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'
=============================================

Note that IronPython 2.7.5b1 is showing version 2.7.0.40 in my console,
but IronPython.dll in the same folder as my exe shows 2.7.5b1 in the
Windows Explorer properties.

Andy

On 4/7/2014 7:42 PM, Pawel Jasinski wrote:
> 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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-- 
Andy
PGP Key ID: 0xDC1B5864