in-place value modification (was Re: lambda without vars?)
Jeff Pinyan
jeffp at crusoe.net
Wed Mar 15 14:35:08 EST 2000
On Mar 15, Jeff Pinyan said:
>>>> a = [1,2,3]
>>>> def app(name,val):
>... tmp = globals()[name]
>... tmp.append(val)
>...
>>>> app('a',4)
>>>> a
>[1, 2, 3, 4]
This could also be done just by
>>> a = [1,2,3]
>>> def foo(this):
... this.append(1)
...
>>> foo(a)
>>> a
[1, 2, 3, 1]
but I brought in globals() to preface the ugly chomp() example.
--
MIDN 4/C PINYAN, NROTCURPI, US Naval Reserve japhy at pobox.com
http://www.pobox.com/~japhy/ http://pinyaj.stu.rpi.edu/
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