Ocatave符号“Python无法导入SymPy”

syms nn nb x

当我这样做时,我收到此消息：

warning: the 'syms' function belongs to the symbolic package from Octave Forge
which you have installed but not loaded.  To load the package,run `pkg
load symbolic' from the Octave prompt.

后：

pkg load symbolic
syms nn nb x

我明白了：

Traceback (most recent call last):
  File "<string>",line 1,in <module>
  File "sympy/__init__.py",line 27,in <module>
    raise ImportError("It appears 2to3 has been run on the codebase. Use "
 ImportError: It appears 2to3 has been run on the codebase. Use Python 3 or get the original source code.
OctSymPy v2.4.0: this is free software without warranty,see source.
Initializing communication with SymPy using a popen2() pipe.
error: Python cannot import SymPy: have you installed SymPy?
error: called from
     assert_have_python_and_sympy at line 37 column 5
     python_ipc_popen2 at line 78 column 5
     python_ipc_driver at line 57 column 13
     python_cmd at line 166 column 9
     sym at line 365 column 5
     syms at line 162 column 9

我正在使用OSX El Capitan,我通过自制软件安装了Octave.

如果我是诚实的,我不知道这里发生了什么……是不是八度音程无法与同情交流？如果是这样,我猜可能有一个简单的方法来解决这个问题？如果不是这样我该怎么办？我愿意重新开始这个过程.

我想提前为任何格式问题道歉,这是我第一次问.我没有看到任何有关此问题的问题,但如果我错过了一些明显的问题,我会再次感到抱歉.

谢谢！