Aug-26-2019, 03:16 AM
In python 3.8, we will have a new syntax
:=
that could assign values to variables as part of larger expression, for example,if (n:=len(a)) > 10: ....On the other hand, I also think that it would be useful if
:=
could be used in function argument, so that a local variable created inside a function could be returned **optionally**, for example,def func(arg1, arg2, karg1=karg1_default, karg_return:=karg_return): ... karg_return = 3 ... return func_output # normal calling of func() without returning variable karg_return # in this way, karg_return:=karg_return is not used and karg_return is only simply a local variable in func() output = func(2,3,karg1=4) # calling func() with using the karg_return argument # in this way, value of the local variable karg_return in func() is created and "passed" to variable a output = func(2,3,karg1=4,a:=karg_return) print(a) # a = 3Is that possible to have this new feature in new python version?