如何在python里面直接修改hosts文件

def hostInit():
    outsides = ''
    output = open(r'C:\WINDOWS\system32\drivers\etc\HOSTS', 'w')
    output.write(outsides)
    output.close()

这里是清空hosts，如果你想设置hosts，可给outside赋值，比如：

def hostInit():
    outsides = ['172.16.12.223 www.baidu.com', 
                '172.16.10.223 pan.baidu.com', 
                '172.16.12.111 un.baidu.com', 
                '172.16.12.223 passport.baidu.com']
    output = open(r'C:\WINDOWS\system32\drivers\etc\HOSTS', 'w')
    for i in outsides:
        output.write(i)
        output.write("\n")
    output.close()