python 检查列表中是否存在值

Question

无法得到正确的结果。我想检查列表的内容以获取一组值。我不应该陷入条件 if 因为该值不存在。

以下列表包含: ['pm_pmdo', 'pm_pmco', 'shv', 'dsv', 'pmv']

检查以下内容:she、dse、pme

里面找到一个？

class newfunc(object):

    def testfunction(self):

        self.DSE = 'dse'
        self.PME = 'pme'
        self.SHE = 'she'

        self.users_roles = ['pm_pmdo', 'pm_pmco', 'shv', 'dsv', 'pmv']

        print 'Following list contains:'
        print self.users_roles
        print 'Checking for the following:'
        print self.SHE
        print self.DSE
        print self.PME

        if (self.DSE or self.PME or self.SHE for s in self.users_roles):
        #if (self.DSE or self.PME or self.SHE) in self.users_roles:
            print "inside found one"
        else:
            print "outside none found"

if __name__ == '__main__':
    runtime = newfunc()
    runtime.testfunction()

Answer 1

if any(role in self.users_roles for role in (self.SHE, self.PME, self.SHE)):