Le 4 janv. 2018 �� 23:48, Kjell Godo <squeaklist@gmail.com> a ��crit :

did you use a socket to communicate from Pharo to Python?
it does not sound like it it sounds more one way
i am interested in using sockets to communicate between programs
but i haven't done much with it yet
maybe you can include sockets in your generated Python to talk
back to Pharo ?
i got Dolphin Smalltalk to talk to Pharo using a socket
but i kind of forgot about it

There is a concept of �� Interpreter �� in this framework. Basically, an interpreter is an object to which you provide strings containing Python 3 code and that execute it.

There is a FFI interpreter which writes the python code in a file on the file system and uses the int system(char *) function to make python execute the file. It also redirect stderr to a file and read that file after execution in order to have eventual execution errors.

There is a Atlas interpreter which uses the Atlas project from Kilon. Atlas makes Python and Pharo talk trough sockets. So this is what you want I guess. The thing is, if I want to send data from Python Pharo, I would use the Atlas interpreter and serialise data to send to Pharo through a socket as JSON for example. But for Matplotlib I do not need to read Python��s value so I did not implemented that. Nevertheless, it could be cool to have this ability to get Python��s data in Pharo because we could use Numpy or others Python modules for which getting Python's is important.

Another interesting thing when communicating through sockets between two different languages is: How do you manage callbacks? For example I would like to be able to make Python execute a Pharo Block at a certain point of the execution or to make Pharo execute a Python��s lambda. I do not have answer for that.

did you look at Roassal ? Roassal does a lot of plotting they look very nice
they have mouse interactions and lots of cool stuff
but i don't know how they relate to other plotting programs
i imagine that Roassal tries to do things not done in other programs
but i don't really know i looked at some other plotting thing also
can't remember Sci something
Roassal has a nice declarative style that is nice
i want to use it a lot in future
i use Roassal in the Moose Pharo image because it is pre installed

Yes I know Roassal and I think this is a great project when you want to do interactive visualisations and keep them inside the image.

But, as far as I know, when it comes to export the plot into a pdf file to have a nice integration in a LaTeX document, you can not do that in Roassal. Of course you can export your plot as svg but then you have to deal with integrating svg inside LaTeX�� Furthermore, as I said before, I already used MatplotLib in Python and really liked its simple interface�� Finally, at the beginning it was just an experiment for fun, but then I saw it was quite easy to interface to a Python library from which you don��t need to get values back in Pharo so I continued this project and used it when I had to plot stuff. Now I think it is quite usable and I enhance it a little every time I use it and see there is a part of the bridge I need that is not built yet. :-)

i have a rich text tree editing program in Dolphin Smalltalk
that i use like a note taking program like everNote but as a great big tree
using the old Windows tree widget in Dolphin 6 which i like
and i store a lot of my text stuff in there
and i would like to store and edit Racket programs or lisp programs
in there in a tree format
and your project sounds interesting
about how to maybe generate Racket code that will allow
me to use Dolphin and Pharo and other Smalltalks as a front end to
Racket or commonLisp etc
because i don't like the GUIs or IDEs of those things
( they're so primative )( but i don't know them well )( they just look
brittle )( and C like )
and i believe there is a command line interface in Pharo so you can
execute external programs like generated scripts

I think you could re-use the ideas behind the bridge but not the code. It is really specific to Python 3, I do not see how you could generate LISP using it as is.