Linux宝塔安装失败with open(init_path) as init_file

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  File "setup.py", line 27

    with open(init_path) as init_file:

            ^

SyntaxError: invalid syntax

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setuptools installation failed.

系统：

LSB Version:        :core-4.0-amd64:core-4.0-ia32:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-ia32:printing-4.0-noarch

Distributor ID:        CentOS

Description:        CentOS release 5.8 (Final)

Release:        5.8

Codename:        Final

在线等，急！！！！

请使用centos6.x或centos7.x来安装宝塔