How to pass C++ function pointer argument in embedded python environment?

2016-11-04 Thread xzldyx
Hi,All, background:I have a python api like this, def a(arg1,arg2,progress_callback = None) obviously argument progress_callback is a callback function.In python,I can define a function like this: def pro_call(prog_arg1,prog_arg2): #do something with arg1 & arg2

Re: Pre-pep discussion material: in-place equivalents to map and filter

2016-11-04 Thread arthurhavlicek
> I don't think that justifies the claim of "especially > bad", which to me implies something much worse. Quicksort has built its popularity by performing better by "a mere factor two" better than mergesort and heapsort. It became the reference sorting algorithm even though its worst case comple

Re: Pre-pep discussion material: in-place equivalents to map and filter

2016-11-04 Thread Chris Angelico
On Sat, Nov 5, 2016 at 11:42 AM, Steve D'Aprano wrote: > On Fri, 4 Nov 2016 08:34 am, Chris Angelico wrote: > > [...] >> List comps themselves involve one function call (zero in Py2). What >> you do inside the expression is your business. Do you agree that list >> comps don't have the overhead of

Re: Pre-pep discussion material: in-place equivalents to map and filter

2016-11-04 Thread Steve D'Aprano
On Fri, 4 Nov 2016 08:34 am, Chris Angelico wrote: [...] > List comps themselves involve one function call (zero in Py2). What > you do inside the expression is your business. Do you agree that list > comps don't have the overhead of opening and closing files? /tongue firmly in cheek I'd like to

Re: Pre-pep discussion material: in-place equivalents to map and filter

2016-11-04 Thread Arthur Havlicek
> If slice assignment is done as I hope it will optimize remain memory operations. Bad news. http://stackoverflow.com/questions/4948293/python-slice-assignment-memory-usage/4948508#4948508 > If you want something like C++ move semantics, use C++. I don't see anything like this in my proposal. I

Re: data interpolation

2016-11-04 Thread marco . nawijn
On Thursday, November 3, 2016 at 11:08:34 AM UTC+1, Heli wrote: > Hi, > > I have a question about data interpolation using python. I have a big ascii > file containg data in the following format and around 200M points. > > id, xcoordinate, ycoordinate, zcoordinate > > then I have a second fil

Re: need some kind of "coherence index" for a group of strings

2016-11-04 Thread duncan smith
On 03/11/16 16:18, Fillmore wrote: > > Hi there, apologies for the generic question. Here is my problem let's > say that I have a list of lists of strings. > > list1:#strings are sort of similar to one another > > my_nice_string_blabla > my_nice_string_blqbli > my_nice_string_bl0bla >