On Saturday, October 25, 2014 11:20:03 AM UTC+5:30, Chris Angelico wrote: > On Sat, Oct 25, 2014 at 4:40 PM, Rustom Mody wrote: > > Its generally accepted that side-effecting functions are not a good idea > > -- typically a function that returns something and changes global state. > > Only in certain circles. Not in Python. There are large numbers of > functions with side effects (mutator methods like list.append, > anything that needs lots of state like random.random, everything with > external effect like I/O, heaps of stuff), and it is most definitely > not frowned upon. > > In Python 3 (or Python 2 with the future directive), print is a > function, print() an expression. It's not "semantically a statement".
Ok So give me a valid (ie useful) use where instead of the usual l=[1,2,3] l.append(4) we have foo(l.append(4)) -- https://mail.python.org/mailman/listinfo/python-list
