CentOS 6.5 自带的Python 2.6.6 箭头以及退格键（Backspace）可正常使用：
自定义所安装的Python 2.7.6却发现箭头以及退格键（Backspace）在使用的时候出现异常：
这是由于新升级的Python2.7.6缺少readline开发包的原因：
后重新编译、安装Python 2.7.6，发现make install的时候，最后确实提示缺少readline库：
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Python build finished, but the necessary bits to build these modules were not found:
_bsddb _curses _curses_panel
_sqlite3 _tkinter bsddb185
bz2 dbm dl
gdbm imageop sunaudiodev readline
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因此我们需要安装readline开发包，并重新对Python 2.7.6进行编译安装：
shenweiyan@localhost :: ~ => yum install readline-devel.x86_64
shenweiyan@localhost 09:28:40 ~
=> yum list|grep readline
readline.x86_64 6.0-4.el6 @anaconda-CentOS-201311272149.x86_64/6.5
readline-devel.x86_64 6.0-4.el6 @bgios
compat-readline5.i686 5.2-17.1.el6 bgios
compat-readline5.x86_64 5.2-17.1.el6 bgios
compat-readline5-devel.i686 5.2-17.1.el6 bgios
compat-readline5-devel.x86_64 5.2-17.1.el6 bgios
compat-readline5-static.x86_64 5.2-17.1.el6 bgios
libreadline-java.x86_64 0.8.0-24.3.el6 bgios
libreadline-java-javadoc.x86_64 0.8.0-24.3.el6 bgios
readline.i686 6.0-4.el6 bgios
readline-devel.i686 6.0-4.el6 bgios
readline-static.x86_64 6.0-4.el6 bgios
tcl-tclreadline.i686 2.1.0-3.el6 epel
tcl-tclreadline.x86_64 2.1.0-3.el6 epel
tcl-tclreadline-devel.i686 2.1.0-3.el6 epel
tcl-tclreadline-devel.x86_64 2.1.0-3.el6 epel
再重新configure、make、make install，搞定！！