Call variable as a function

Steve Holden steve at holdenweb.com
Thu Mar 3 23:22:51 CET 2005


Chmouel Boudjnah wrote:
> Steve Holden wrote:
> 
>> But it depends how you are creating the reference to the function. The 
>> above is required if all you have is a string, but it would also be 
>> possible to set the variable to the function rather than the 
>> function's name
>>  >>> var = test
>>  >>> var()
>> hello
>>  >>>
>> Hope this helps.
> 
> 
> Thanks man it does help.
> 
Then it might help even more to realize that you can use lists and 
dictionaries of functions as well:

 >>> def f1(x):
...   return x*2
...
 >>> def f2(x):
...   return "This is an %s" % x
...
 >>> def f3(x):
...   return "%s:%s" % (x, x)
...
 >>> fl = [f1, f2, f3]
 >>> for s in ("bigstring", "tiny"):
...   for i in range(len(fl)):
...     print fl[i](s)
...
bigstringbigstring
This is an bigstring
bigstring:bigstring
tinytiny
This is an tiny
tiny:tiny
 >>>

regards
  Steve
-- 
Steve Holden        +1 703 861 4237  +1 800 494 3119
Holden Web LLC             http://www.holdenweb.com/
Python Web Programming  http://pydish.holdenweb.com/



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