copying a string???

[Joe Connellan]

I have a function that alters the value of a string (written in C). (is
that bad?)

in the following code

str1 = "hi there"
str2 = copy.deepcopy(str1)
changeString(str2)

changeString() changes both str2 and str1, where I only want it to
change str2 - hence the deepcopy().

I have also tried these
str2 = copy.copy(str1)
str2 = str1

does deepcopy just assume that becuase a string doesn't support
assignment it can reference rather than copy it?

anyone know how I can really copy the string? or am I missing something
above?

Thanks

Joe