[newbie] A question about lists and strings

Mok-Kong Shen mok-kong.shen at t-online.de
Fri Aug 10 12:12:12 CEST 2012


Am 10.08.2012 11:48, schrieb Roman Vashkevich:
>[snip]
 >The function .... It takes list by reference and creates a new local
 > str. When it's called with listb and strb arguments, listb is passed
 > by reference and mutated. A string "sss" is concatenated with an
 > empty local str. Nothing more happens. Since local str is not
 > returned by xx(), it can not be expected to be printed out in the
 > statement that follows. What is printed out in the print statement is
 > the mutated listb and the global strb.

Thanks for the explanation of the output obtained. But this means
nonetheless that parameters of types lists and strings are dealt with
in "inherently" (semantically) different ways by Python, right?

M. K. Shen



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