更新Python到2.7
眼看着python3都出来了，vps上用的还是2.4的版本额，确实汗了一把。决定升级下python。python2.7是2.X的最后一个版本，同时她也加入了一部分3.X的新特性。so 让我们升级吧！
查看系统当前python版本
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# python
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Python 2.4.3 (#1, May5 2011, 16:39:10)
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on linux2
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Type "help", "copyright", "credits" or "license" for more information.
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>;>>
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#
下载新版本的python
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# wget http://python.org/ftp/python/2.7.2/Python-2.7.2.tgz
解压缩以及编译
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# tar xvf Python-2.7.2.tar.bz2
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# ./configure --prefix=/usr/local/python27
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# make
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# make install
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# ls /usr/local/python27/ -al
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total 28
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drwxr-xr-x6 root root 4096 Jul 14 00:21 .
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drwxr-xr-x 20 root root 4096 Jul 14 00:17 ..
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drwxr-xr-x2 root root 4096 Jul 14 00:21 bin
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drwxr-xr-x3 root root 4096 Jul 14 00:21 include
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drwxr-xr-x4 root root 4096 Jul 14 00:21 lib
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drwxr-xr-x3 root root 4096 Jul 14 00:21 share
覆盖原来的python链接
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# mv /usr/bin/python /usr/bin/python_old
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# ln -s /usr/local/python27/bin/python /usr/bin/
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# python
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Python 2.7.2 (default, Jul 14 2011, 00:20:14)
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on linux2
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Type "help", "copyright", "credits" or "license" for more information.
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>>>
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