Recursive algorithms anyone?

[Stepan Koltsov]

Nick Perkins <nperkins7 at home.com> wrote:
...skipped
> from __future__ import nested_scopes

> def additem(k,L):
>     def _additem(x):
>         if type(x) is type([]) : return map (_additem,x)
>         else : return x+k
>     return _additem(L)

IMHO more proper is

import types
...
type( x ) is types.ListType

because less operations performed (e. g. creating new list)...

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