1.下载源码
$ wget https://github.com/sympy/sympy/releases/download/sympy-1.2/sympy-1.2.tar.gz
$ wget https://github.com/fredrik-johansson/mpmath/archive/0.19.tar.gz
2.安装mpmath-0.19
$ pip3 install mpmath-0.19.tar.gz
3.安装sympy-1.2
$ pip3 install sympy-1.2.tar.gz
4.查看安装列表
$ pip3 list
Package Version
---------- -------
mpmath 0.19
pip 10.0.0
setuptools 39.0.1
sympy 1.2
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