Neatest way to do a case insensitive "in"?

[tinnews]

What's the neatest way to do the following in case insensitive fashion:-

    if stringA in stringB:
        bla bla bla

I know I can just do:-

    if stringA.lower() in stringB.lower():
        bla bla bla

But I was wondering if there's a neater/easier way?

-- 
Chris Green
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