python安装机器学习库 numpy、scipy、matplotlib、scikit-learn

准备工作

1、yum -y install bzip2-devel（或源码安装）

2、tar -zxvf setuptools-0.6c11.tar.gz
 cd setuptools-0.6c11
 python setup.py build
 python setup.py install

1、安装pip
 yum安装pip
 yum -y install python-pip

 1、卸载pip（前提是yum安装pip失败了，或者没有用 ）  

 yum remove python-pip

 2、下载

 curl -O https://pypi.python.org/packages/source/p/pip/pip-7.1.2.tar.gz

 3、安装

 解压后 进入目录 python setup.py build
   python setup.py install

 4、还遇到一个问题  提示说   /usr/bin 目录找不到pip
 
 找一下安装在哪儿   find / -name "pip"

 然后运行一下是否可用

 最后建立一个软连接在报错的目录

 ln -s /usr/local/bin/pip2.7 /usr/bin/pip
2、安装numpy
 
 pip install numpy（若失败，源码安装）

3、安装scipy
 依赖包

 yum -y install lapack-devel freetype freetype-devel libpng libpng-devel blas blas-devel lapack atlas

 pip install scipy(或源码安装)

4、安装matplotlib
 
 tar -zxvf matplotlib-1.2.0.tar.gz
 cd matplotlib-1.2.0
 python setup.py build
 python setup.py install

 测试matplotlib
 
import numpy as np
import matplotlib.pyplot as plt
 
xData = np.arange(0,10,1)
yData1 = xData.__pow__(2.0)
yData2 = np.arange(15,61,5)
plt.figure(num=1, figsize=(8,6))
plt.title('Plot 1', size=14)
plt.xlabel('x-axis', size=14)
plt.ylabel('y-axis', size=14)
plt.plot(xData, yData1, color='b', linestyle='--', marker='o', label='y1 data')
plt.plot(xData, yData2, color='r', linestyle='-', label='y2 data')
plt.legend(loc='upper left')
plt.savefig('../plot1.png', format='png')

5、安装sklearn
 tar -zxvf scikit-learn-0.17.tar.gz
 cd scikit-learn-0.17
 python setup.py build
 python setup.py install

检测
python
Python 2.7.11 (default, Jan 22 2017, 10:03:27)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-17)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
>>> numpy
<module 'numpy' from '/usr/local/python27/lib/python2.7/site-packages/numpy/__init__.pyc'>
>>> import scipy
>>> scipy
<module 'scipy' from '/usr/local/python27/lib/python2.7/site-packages/scipy/__init__.pyc'>
>>> import matplotlib
>>> matplotlib
<module 'matplotlib' from '/usr/local/python27/lib/python2.7/site-packages/matplotlib/__init__.pyc'>
>>> import sklearn
>>> sklearn
<module 'sklearn' from '/usr/local/python27/lib/python2.7/site-packages/sklearn/__init__.pyc'>
>>> exit()