More Lambda and GUI fun

Just tripped over an interesting problem with the lambda stuff I shared in the last post. It's just peachy if you're passing a literal value:

# other code omitted for brevity
mc.button(l="click me", c=lambda x:colorMe("Purple"))

However, if you're creating a collection of controls using a loop, it no worky correctly:

names = ["me", "you", "him"]
for name in names:
    mc.button(l=name, c=lambda x:nameMe(name)

In this example, no matter which button you click, it will pass "him".

I tried a number of ways to get around this, and wasn't successful until I revisited the page that flipped the lambda light switch for me. The second example on that page shows how to create a "lambda factory" of sorts. In the context of the loop situation, the factory serves to isolate the creation of the lambda function from the loop. While the factory function was a standalone item in the example on that page, it would be convenient to nest said factory inside the same function/method that contains the loop. Here's a more fleshed-out example:

import maya.cmds as mc

def addButtons (names):
    # here's the factory function
    def factory (nm):
        return lambda x:showName(nm)

    # and here's our loop
    for name in names:
        mc.button(l=name, c=factory(name))

It's a bit more extra code than I'd hoped for, but it's only needed when using the lambda technique inside a loop, and still allows me to keep the target functions/methods clean by avoiding nesting.