Thanks for the quick replies. I didn't want statements in my expressions, just let-expressions. That's okay, it was just a question.
Sébastien Loisel On Apr 3, 7:20 pm, Chris Rebert <c...@rebertia.com> wrote: > On Fri, Apr 3, 2009 at 4:18 PM, Terry Reedy <tjre...@udel.edu> wrote: > > sloisel wrote: > > >> Dear All, > > >> I searched this group and found that there have been discussions about > >> introducing a let expression to the language so that you can define > >> local variables in a lambda. I.e., something like f=lambda x: let > >> y=x^2 in sin(y). (My syntax is unpythonic, but I hope you get it). > > >> Can someone tell me what eventually happened? > > > The discussions ended. > > Proposals for assignment expressions have been rejected. > > To elaborate slightly, if you need anything more complicated than a > single expression, then *don't use a lambda*. Just use a named > function. It's much clearer and easier. > Proposals to extend lambda usually spiral/evolve into wanting to make > lambda multi-line, which has repeatedly been found to be incompatible > with Python's indentation-based syntax; and, again, you can just use a > named function. > > Cheers, > Chris > > -- > I have a blog:http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
