Python学习笔记三（Python程序升级安装及其Tab自动补齐功能）

wget http://www.python.org/ftp/python/2.7.5/Python-2.7.5.tar.bz2[/code]2.解压，编译安装。 
tar -jxvf Python-2.7.5.tar.bz2
cd Python-2.7.5
./configure --prefix=/usr/local/python2.7.5
make && make install
3.指定新python安装路径。

python -V #查看系统之前python版本
Python 2.4.3
which python #查看之前系统python可执行文件的路径
/usr/bin/python
mv /usr/bin/python /usr/bin/python.bak
ln -s /usr/local/python2.7.5/bin/python /usr/bin/python #指定新版本路径
python -V
Python 2.7.5
  Python升级安装就这么简单，下面介绍标准python shell的自动补齐功能，如果在编译时增加了readline特性，将具有tab自动完成功能，对python编程或者初学者都有很大的帮助。
python
Python 2.7.5 (default, Jun 13 2013, 15:08:30)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import rlcompleter,readline
>>> readline.parse_and_bind('tab: complete')
>>> import time
>>> time.
time.__class__(         time.__reduce__(        time.daylight
time.__delattr__(       time.__reduce_ex__(     time.gmtime(
time.__dict__           time.__repr__(          time.localtime(
time.__doc__            time.__setattr__(       time.mktime(
time.__file__           time.__sizeof__(        time.sleep(
time.__format__(        time.__str__(           time.strftime(
time.__getattribute__(  time.__subclasshook__(  time.strptime(
time.__hash__(          time.accept2dyear       time.struct_time(
time.__init__(          time.altzone            time.time(
time.__name__           time.asctime(           time.timezone
time.__new__(           time.clock(             time.tzname
time.__package__        time.ctime(             time.tzset(
  有关python升级安装和Tab用法就学习到这里，接下来学习python模块。
备注：python交互式模式里面不能按回格键（Backspace）解决版本， yum install readline-devel 然后重新编译安装即可。

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