CentOS Python2.4升級到Python2.7

Python升級
 # yum install gcc gcc-c++.x86_64 compat-gcc-34-c++.x86_64 openssl-devel.x86_64 zlib*.x86_64
 # wget http://www.python.org/ftp/python/2.7/Python-2.7.tar.bz2
 # tar -xvjf Python-2.7.tar.bz2
 # cd Python*
 # ./configure --prefix=/opt/python27
 # make
 # make install
 #vi ~/.bash_profile
 

這時候Python已經升級好了，可是默認的Python版本仍是2.4.3
 

# mv /usr/bin/python /usr/bin/python_backup
 # ln -s /opt/python27/bin/python /usr/bin/
 # python -V
 Python 2.7
 這個時候yum又不能用了
 # vim /usr/bin/yum
 #!/usr/bin/python
 改爲
 #!/usr/bin/python2.4

這時候yum修復了，下面就是安裝easy_install，pip和requests

# curl -O http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.egg
 # chmod 775 setuptools-0.6c11-py2.7.egg
 # sh setuptools-0.6c11-py2.7.egg
 # curl -O http://pypi.python.org/packages/source/p/pip/pip-1.0.tar.gz
 # tar xvfz pip-1.0.tar.gz
 # cd pip-1.0
 # python setup.py install
 # /opt/python27/bin/easy_install requests

pip也安裝在opt/python2.7/bin裏 作個軟鏈接到/usr/bin下

ln -s /opt/python2.7/bin/pip /usr/bin