python check pattern in string [duplicate]

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Possible Duplicate:

Python - Check If Word Is In A String.

i have a string 开发者_如何学Pythonwhich is a url e.g.

my_url = "http://mysite.com/somefolder/somefile"

I want check if "somefolder" is in the my_url file

how do I do that?

---

Are you looking for this?

if "/somefolder/" in my_url:
    #whatever

---

Use:

print 'somefolder' in my_url

OR

print my_url.index('somefolder')