python 安装第三方模块

安装第三方模块:

在Python中,安装第三方模块,是通过setuptools这个工具完成的。

Python有两个封装了setuptools的包管理工具：easy_install和pip。目前官方推荐使用pip。

[root@node01 lib]# python
Python 2.7.3 (default, Apr  1 2017, 09:53:01) 
[GCC 4.4.7 20120313 (Red Hat 4.4.7-17)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>  import Image
  File "<stdin>", line 1
    import Image
    ^
IndentationError: unexpected indent


安装pip:

yum install *ssl* 

安装编译python:

[root@node01 ~]# python -V
Python 2.7.3

[root@node01 ~]# cd pip-1.5.4
[root@node01 pip-1.5.4]# python setup.py install
Traceback (most recent call last):
  File "setup.py", line 6, in <module>
    from setuptools import setup, find_packages
ImportError: No module named setuptools


解决的方案如下：
下载：http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.egg

sh setuptools-0.6c11-py2.7.egg


[root@node01 pip-1.5.4]# pip install PLL
Traceback (most recent call last):
  File "/usr/local/bin/pip", line 8, in <module>
    load_entry_point('pip==1.5.4', 'console_scripts', 'pip')()
  File "/usr/local/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 318, in load_entry_point
  File "/usr/local/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 2221, in load_entry_point
  File "/usr/local/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 1954, in load
  File "/usr/local/lib/python2.7/site-packages/pip-1.5.4-py2.7.egg/pip/__init__.py", line 10, in <module>
    from pip.util import get_installed_distributions, get_prog
  File "/usr/local/lib/python2.7/site-packages/pip-1.5.4-py2.7.egg/pip/util.py", line 18, in <module>
    from pip._vendor.distlib import version
  File "/usr/local/lib/python2.7/site-packages/pip-1.5.4-py2.7.egg/pip/_vendor/distlib/version.py", line 14, in <module>
    from .compat import string_types
  File "/usr/local/lib/python2.7/site-packages/pip-1.5.4-py2.7.egg/pip/_vendor/distlib/compat.py", line 31, in <module>
    from urllib2 import (Request, urlopen, URLError, HTTPError,
ImportError: cannot import name HTTPSHandler


原因在于openssl,openssl-devel两个文件包未正确安装。用下来的命令来安装：
2
yum install openssl -y
yum install openssl-devel -y

安装完成后，重新安装Python:
cd python2.7
./configure
make install

[root@node01 Python-2.7.3]# pip install PLL
Downloading/unpacking PLL



[root@node01 ~]#  easy_install python-memcached
Searching for python-memcached
Reading http://pypi.python.org/simple/python-memcached/
Best match: python-memcached 1.58
Downloading https://pypi.python.org/packages/f7/62/14b2448cfb04427366f24104c9da97cf8ea380d7258a3233f066a951a8d8/python-memcached-1.58.tar.gz#md5=23b258105013d14d899828d334e6b044
Processing python-memcached-1.58.tar.gz
Running python-memcached-1.58/setup.py -q bdist_egg --dist-dir /tmp/easy_install-IlhCP0/python-memcached-1.58/egg-dist-tmp-FykfuA
warning: no files found matching '*.rst'
warning: no files found matching 'MakeFile'
warning: no previously-included files matching '*.pyc' found anywhere in distribution
warning: no previously-included files matching '.gitignore' found anywhere in distribution
warning: no previously-included files matching '.DS_Store' found anywhere in distribution
zip_safe flag not set; analyzing archive contents...
Adding python-memcached 1.58 to easy-install.pth file

Installed /usr/local/lib/python2.7/site-packages/python_memcached-1.58-py2.7.egg
Processing dependencies for python-memcached
Searching for six>=1.4.0
Reading http://pypi.python.org/simple/six/
Best match: six 1.10.0
Downloading https://pypi.python.org/packages/b3/b2/238e2590826bfdd113244a40d9d3eb26918bd798fc187e2360a8367068db/six-1.10.0.tar.gz#md5=34eed507548117b2ab523ab14b2f8b55
Processing six-1.10.0.tar.gz
Running six-1.10.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-krGcdT/six-1.10.0/egg-dist-tmp-s5ooAX
no previously-included directories found matching 'documentation/_build'
zip_safe flag not set; analyzing archive contents...
six: module references __path__
Adding six 1.10.0 to easy-install.pth file

Installed /usr/local/lib/python2.7/site-packages/six-1.10.0-py2.7.egg
Finished processing dependencies for python-memcached


查看模块说明:

>>> help('memcache')