Ocatave符号“Python无法导入SymPy”

After installing octave, sympy (through anaconda), and the symbolic package, I'm trying to run this line in octave as part of a script:

安装octave，sympy（通过anaconda）和符号包后，我试图以八度为单位运行此行作为脚本的一部分：

syms nn nb x

When I do I get this message:

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.

After:

后：

pkg load symbolic
syms nn nb x

I get:

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

I'm using OSX El Capitan and I installed Octave through homebrew.

我正在使用OSX El Capitan，我通过自制软件安装了Octave。

If I'm being honest, I have no clue what is going on here... Is it that octave is unable to properly communicate with sympy? If so I'm guessing there might be a simple way to fix this? If this isn't it what should I do? I'm open to restarting the process.

如果我是诚实的，我不知道这里发生了什么......是不是八度音不能与同情交流？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？我愿意重新启动这个过程。

I'd like to apologize for any formatting issues ahead of time, this is my first time asking. I didn't see any questions covering this but if I missed something obvious, I'm sorry again.

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。

Thank you!

谢谢！

1 个解决方案

#1

It looks like you have an old version of SymPy. Try upgrading to the newest version (1.0 at the time of writing).

看起来你有一个旧版本的SymPy。尝试升级到最新版本（撰写本文时为1.0）。