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首先安装SublimeLinter，在sublime中shift+ctrl+p，install packages:搜索sublimelinter，安装
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到cmd或者powershell中适应pip安装PEP8，没有安装pip的自行Google
pip install PEP8
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回到sublime text，Menu->Preferences->Package Settings->SublimeLinter->settings Default，添加如下字段。
"linters": {
"pep8": {
"@disable": false,
"args": [],
"excludes": [],
"ignore": "",
"max-line-length": null,
"select": ""
}
}
github:https://github.com/SublimeLinter/SublimeLinter-pep8