python2.7升级到python3.7导致yum报错:File "/usr/bin/yum", line 30

因为yum包使用python2*等开发,修该为环境修改python3之后有问题,
解决:
修改文件/usr/bin/yum、/usr/libexec/urlgrabber-ext-down头中相应python为#!/usr/bin/python2.7

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转载自blog.csdn.net/halu_a/article/details/81429268
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