python - 安装 Python bigfloat 模块

Question

我正在尝试将 bigfloat Python 包放到我的 Mac 上，但我不太擅长这种事情。

In order to use the bigfloat package you will need to have both the GMP and MPFR libraries already installed on your system.

我认为 GMP 和 MPFR 库已经安装在我的系统上 - 至少当我搜索它们时，我会看到包含它们的名称和文件的文件夹。

当我尝试通过键入以下内容安装 bigfloat 时：

python setup.py install

我收到很多错误消息。第一个是：

src/mpfr.c:223:17: error: gmp.h: No such file or directory
src/mpfr.c:224:18: error: mpfr.h: No such file or directory

gmp.h 和 mpfr.h 文件在我的电脑上，但显然我需要做些别的事情。

显然，我不明白整个过程是如何运作的，但是任何朝着正确方向的指针都会很棒。谢谢你。

score 1 · Accepted Answer

首先，您需要安装 GMP 和 MPFR 库。

sudo apt-get install libmpfr-dev

然后运行：

 sudo pip install bigfloat

问候！

score 0 · Accepted Answer

I'm having the same problem and here's what I've tried as per the readme file in the bigfloat installation directory:

"An example: on Mac OS X, using the system Python, but with MPFR and GMP installed in /opt/local (e.g., by MacPorts), one can do":

LIBRARY_PATH=/opt/local/lib CPATH=/opt/local/include python setup.py build

This didn't throw any errors, but when I checked to see if it installed by running this test:

python -m bigfloat.test.test_bigfloat

I got the error:

/Library/Frameworks/Python.framework/Versions/7.2/Resources/Python.app/Contents/MacOS/Python: No module named mpfr

You can give this a try to see if it works for you, but I'm still lost.

What you should get if it's a successful installation is this:

the bigfloat-0.3.0a1/ directory that you created can now be deleted.

score 0 · Accepted Answer

我在我的 Mac (v10.10.3) 上通过 easy_install 和 pip 安装 python bigfloat 时遇到了问题，并且遇到了类似的错误问题；这是因为 bigfloat 需要几个其他库。

根据这个答案

我安装了 gmp & mpfr 库，然后 pip 将正确安装

pip install bigfloat

或者

pip3.5 install bigfloat

3 回答 3