#创建存放Python安装包的位置:
mkdir -p /home/www/tools
cd /home/www/tools
#下载安装包Python-2.7.20.tar.gz
wget https://www.python.org/ftp/python/2.7.10/Python-2.7.10.tgz
tar xf Python-2.7.10.tar.gz
cd Python-2.7.10
./configure && make && make install
#修改版本连接
mv /usr/bin/python /usr/bin/python2.6
ln -s /usr/local/bin/python2.7 /usr/bin/python
[root@Python ~]# python -V
Python 2.7.10
因为Python默认没有tab键功能
这里我们手动写一个，内容如下:
try:
import readline
except ImportError:
print("Module readline not available.")
else:
import rlcompleter
readline.parse_and_bind("tab: complete")
将以上内容保存在用户的家目录下.startup.py(名字可以随便去，只要不跟系统关键字冲突即可)，这里我们放在/root/.startup.py，然后在/root/.bash_profile中申明一个变量PYTHONSTARTUP=~/.startup.py
[root@Python ~]# cat .bash_profile
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/bin
export PYTHONSTARTUP=~/.pythonrc.py
然后退出登录，重新登录切换到Python环境下导入sys模块测试tab键
[root@Python ~]# python
Python 2.7.10 (default, Nov 2 2015, 14:32:17)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-16)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.
sys.__class__( sys.__reduce_ex__( sys.argv sys.exit( sys.long_info sys.setcheckinterval(
sys.__delattr__( sys.__repr__( sys.builtin_module_names sys.flags sys.maxint sys.setdlopenflags(
sys.__dict__ sys.__setattr__( sys.byteorder sys.float_info sys.maxsize sys.setprofile(
sys.__displayhook__( sys.__sizeof__( sys.call_tracing( sys.float_repr_style sys.maxunicode sys.setrecursionlimit(
sys.__doc__ sys.__stderr__ sys.callstats( sys.getcheckinterval( sys.meta_path sys.settrace(
sys.__excepthook__( sys.__stdin__ sys.copyright sys.getdefaultencoding( sys.modules sys.stderr
sys.__format__( sys.__stdout__ sys.displayhook( sys.getdlopenflags( sys.path sys.stdin
sys.__getattribute__( sys.__str__( sys.dont_write_bytecode sys.getfilesystemencoding( sys.path_hooks sys.stdout
sys.__hash__( sys.__subclasshook__( sys.exc_clear( sys.getprofile( sys.path_importer_cache sys.subversion
sys.__init__( sys._clear_type_cache( sys.exc_info( sys.getrecursionlimit( sys.platform sys.version
sys.__name__ sys._current_frames( sys.exc_type sys.getrefcount( sys.prefix sys.version_info
sys.__new__( sys._getframe( sys.excepthook( sys.getsizeof( sys.ps1 sys.warnoptions
sys.__package__ sys._mercurial sys.exec_prefix sys.gettrace( sys.ps2
sys.__reduce__( sys.api_version sys.executable sys.hexversion sys.py3kwarning
>>> sys.