On 24/08/15 07:38, rakesh sharma wrote:
I am beginner in pythonI see the use of lambda has been for really simple ones as in the numerous examples over the net.Why cant we use lambda in another one like g = lambda x: (lambda y: y + 1) + 1when I am able to do that in two lines h = lambda x: x + 1>>> h(12)13y = lambda x: h(x) + 1>>> y(1)3
Your email has arrived with no formatting so its hard to work out your examples. You can use lambda in multiple lines but it is limited to a single expression. >>> ml = lambda n: ( ... 5*n + ( ... n*n - ( ... 25))) >>> ml(7) 59 >>> And you can use lambda within a lambda: >>> adder = lambda x: lambda n: n+x >>> adder(3) <function <lambda> at 0x7fe3dca0ccf8> >>> add3 = adder(3) >>> add3(5) 8 >>> But for longer functions you are better using def to define them. In Python lambda is not the underlying mechanism for creating functions it is a convenience feature. Python is not Lisp. -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
