if does not evaluate

[Dan Bishop]

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?
 
I'm not quite sure what you'd expect "for" to evaluate to, but you
might want to take a look at list comprehensions:

   [expr(var) for var in seq if cond(var)]

For "if", you can write "(F, T)[bool(C)]" or "(C and [T] or [F])[0]". 
The latter has the advantage of short-circuiting.