You can use the builtin list.copy() method (available since Python 3.3): · You can slice it: new_list = old_list[:] · You can use the built in list() function: ... <看更多>

If you want variables with mutable values to be independent, you must make a copy of the value when you assign it. salsa = ['peppers', 'onions', ... ... <看更多>

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