string parameter replacement question

[oliver]

hi, 

I have a function defined to accept one string parameter, inside this
funtion, I need to call another function to take this string as part of
the parameter, I am confused how to make the replacement happen. See
following code:

def fun1(str):
  fun2("input=str")

Noted that fun2 is from a moudle and it is expecting such a string. But
the replacement won't happen with above structure, for example, fun1("me")
won't produce a fun2("input=me"). Can anyone help me out here?

Thanks a lot