how to deepcopy a slice object?
Simon Forman
rogue_pedro at yahoo.com
Tue Aug 15 05:11:27 EDT 2006
Alexandre Guimond wrote:
> Hi all,
>
> i'm trying to deepcopy a slice object but i get the following error.
> Does anyone know a workaround?
>
> ActivePython 2.4.3 Build 12 (ActiveState Software Inc.) based on
> Python 2.4.3 (#69, Apr 11 2006, 15:32:42) [MSC v.1310 32 bit (Intel)]
> on win32
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import copy
> >>> copy.deepcopy( slice( 1, 10, 2 ) )
> Traceback (most recent call last):
> File "<stdin>", line 1, in ?
> File "C:\Program Files\Python\lib\copy.py", line 204, in deepcopy
> y = _reconstruct(x, rv, 1, memo)
> File "C:\Program Files\Python\lib\copy.py", line 336, in _reconstruct
> y = callable(*args)
> File "C:\Program Files\Python\lib\copy_reg.py", line 92, in
> __newobj__
> return cls.__new__(cls, *args)
> TypeError: slice expected at least 1 arguments, got 0
>
> thx for any help.
Why would you want to [deep]copy a slice object?
Anyway, I don't know much about them, other than that they are
slightly unusual objects that play a very restricted role in python,
rather like the Ellipsis.
Workarounds are possible, I think, but really you almost certainly
don't need to do this.
Peace,
~Simon
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