if does not evaluate

Jim Newton jimka at rdrop.com
Mon Jun 7 22:17:56 CEST 2004


well, i accept the fact that python offers some simple
concepts and you do a lot with simple concepts, but why
can't you put an if inside a lambda? if "if" were evaluatable
then you would be able to do that.  it seems to me.

lambda seem to work for very simple things but not for
anything substantial.



Terry Reedy wrote:
> "Jim Newton" <jimka at rdrop.com> wrote in message
> news:2if8daFmdreiU1 at uni-berlin.de...
> 
>>how do you put an if or a for inside a lambda?
> 
> 
> By wrapping them in other functions; otherwise you don't.
> 
> lambda *args: expr #abbreviates (minus the function name)
> def f(*args): return expr
> 
> If your function is more complicated than that, don't try to abbreviate.
> Use def.
> 
> Terry J. Reedy
> 
> 
> 
> 




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