Copy a string: Difference between revisions

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 '''Interpeter:''' Python 2.3, 2.4, 2.5
-Since strings are immutable, this will not copy anything, just point dst to the same string:
+Since strings are immutable, all copy operations return the same string. Probably the reference is increased.
- src = "Hello"
- dst = src
+<pre>
-There's no way to actually copy a string in Python; all of the standard methods (the unconstrained index [:], copy.copy, copy.deepcopy) all return the same string object, since they're immutable.
+>>> src = "hello"
+>>> a = src
+>>> b = src[:]
+>>> import copy
+>>> c = copy.copy(src)
+>>> d = copy.deepcopy(src)
+>>> src is a is b is c is d
+True
+</pre>
 ==[[Ruby]]==