I have now added the bytes constructor that was not working. To compile from source please try use the git repository at:
https://gitlab.com/python-on-guile/python-on-guile/ see readme for how to compile and what dependencies you have. Regards Stefan On Mon, Feb 10, 2020 at 1:14 PM david larsson <david.lars...@selfhosted.xyz> wrote: > On 2020-02-09 21:36, Stefan Israelsson Tampe wrote: > > in sys that is > > > > On Sun, Feb 9, 2020 at 9:36 PM Stefan Israelsson Tampe > > <stefan.ita...@gmail.com> wrote: > > > >> OKey, I changed the values from immutable lists to lists. > >> > > Great! > > >> On Sun, Feb 9, 2020 at 9:27 PM Stefan Israelsson Tampe > >> <stefan.ita...@gmail.com> wrote: > >> > >> Note that a lot of things are untested because I'm alone on the > >> development. > > Ok, I understand. > > I haven't been able to build a recent version, but if you can share some > updated instructions, then I could perhaps help out with some occasional > testing. I have only managed to build from the old commit fc0d7a9 by > updating the current python-on-guile guix package locally. > > >> > >> netlib is not included, you can test to add the python module file > >> to a (language python module) directory > > What's been working for me so far is only (load "path/to/file.py") and > (load-compiled "path/to/file.go"). > > (use-modules (a b c)) did not work for me, except to load modules > already shipped with python-on-guile repo; (language python module > python) etc. > > >> > >> I have recently added much more of the python stdlib aka 3.7 but not > >> all. > >> > >> Not sure what you mean by .scm file and .py fle when it comes to > >> base64 > >> using that module in scheme gives > >> scheme@(guile-user)> (b64decode (b64encode "abc")) > >> $2 = b'abc' > >> scheme@(guile-user)> (b64decode (b64encode #(1 2 3))) > >> $3 = b'\x01\x02\x03' > >> > >> Which return a bytevector if you want a string back you need to > >> interpret the bytevector back to a string > > Im getting weird results when trying to output the base64 representation > of a string, take btest.py: > #import sys > import base64 > def mybmethod(x): > mybytes = bytes(x, "utf-8") > encodedbytes = base64.b64encode(mybytes) > myb64string = str(encodedbytes, "utf-8") > return myb64string > #print(myb64string) > #mybmethod(sys.argv[1]) > > and assume btest.scm using it with: > (add-to-load-path (dirname (current-filename))) > (use-modules (language python module python)) > (load "btest.py") > (define-public (mybmethodscm cmdline) > (display (mybmethod (cadr cmdline)))) > > With this it will not work to run the scheme file with > guile -e mybmethodscm btest.scm dfasdf > > The error I got indicated that btest.py uses the bytes procedure from > within python-on-guile instead of from the python3 base64 lib: > > ------------------- > > In > /home/user1/VirtualHome/src/code_guile/python-on-guile-test/btest.scm: > 18:11 4 (mybmethodscm _) > In btest.py: > 10:584 3 (_ "dfasdf" . _) > In oop/pf-objects.scm: > 584:15 2 (create-object _ _) > 567:11 1 (the-create-object _ _) > In language/python/bytes.scm: > 99:6 0 Exception thrown while printing backtrace: > Unbound slot in object Error while printing exception. > > language/python/bytes.scm:99:6: Wrong number of arguments to #<procedure > 7f2bab5d4560 at language/python/bytes.scm:92:0 (self) | (self s)> > > ------------------- > > For a moment though, I could run: > > guile -e mybmethodscm btest.scm dfasdf | rev | base64 -d | rev > # gives: dfasdf > > which was also strange. > > >> > >> modules are a bit difficult as I use the guile module system and the > >> python modules are different. > >> So nested modules needs some work. The best is to test and see. > > Ok, got it! > > >> > >> I will look into the sys thingies > >> > >> Regards > >> Stefan > >> > >> On Sun, Feb 9, 2020 at 8:40 PM david larsson > >> <david.lars...@selfhosted.xyz> wrote: > >> Thanks for your explanations, but unfortunately I still can't figure > >> out > >> how to use this except in the simplest of cases. > >> > >> I am using the guix package python-on-guile 0.1.0-3.00a51a2 - maybe > >> thats outdated? > >> > >> The simple things I have managed to do, are like: > >> > >> (add-to-load-path (dirname (current-filename))) > >> (load-compiled python-test.go) > >> > >> where python-test.go is compiled with: > >> > >> guild compile python-test.py --output=python-test.go > >> --from=python > >> > >> and contains simple things, like: > >> > >> f(s): > >> a = s + 1 > >> return a > >> > >> but if I add statements to python-test.py like: > >> > >> import netaddr > >> def myfun(a) > >> <something using netaddr> > >> > >> (netaddr is a module installed via: pip3 install --user netaddr) > >> > >> I receive an error about not finding the module. > >> > >> I am able to add only the modules which exist in the python-on-guile > >> > >> repo, like: > >> > >> import sys > >> import base64 > >> > >> but Im getting errors, for example Im not able to use things from > >> sys, > >> like: > >> > >> sys.path.append(<somepath>) > >> sys.path.insert(0, <somepath>) > >> > >> I was able to use some things from base64 but I only received weird > >> results when converting between bytevectors and strings between the > >> .scm > >> file and .py file. What works fine using python3 python-test.py do > >> not > >> usually work when passing either a bytevector or string to the same > >> go-compiled file from the .scm file using the python-code. Not sure > >> whether there's a problem using python3 vs python2 here? > >> > >> Essentially, what Im looking for is how to proceed if I want to use > >> modules installed via the pip package manager from guile, and what > >> paths > >> and imports I need to make, and how I might need to wrap them > >> correctly > >> in the scheme and python files to invoke a pip package procedure > >> from > >> guile. > >> > >> Best regards, > >> David > >> > >> On 2020-02-09 18:59, Stefan Israelsson Tampe wrote: > >>> I'm the author of that lib. > >>> > >>> 1) > >>> > >>> The main bindings are reachable through (language python module > >>> python) > >>> > >>> So you could now go ahead and do > >>>> (use-modules (language python module python)) > >>>> ;L python > >>> > >>> And you will get a python shell that works quite ok for one liners > >>> > >>> 2) > >>> > >>> If you write a module and place it in a/b/c.py > >>> you can use the classes and functions theirin by > >>> > >>> (use-modules (a b c)) > >>> > >>> 3) > >>> you can load a .py file as (i hope this work) > >>> (load "a.py") > >>> > >>> 4) > >>> If you place a module in (language python module a.py) you can > >> import > >>> ir as a usual mode as > >>>> from a import * > >>> > >>> The documentation is for the macro framework that enables you to > >> work > >>> with python classes and idioms like python iteration. > >>> > >>> Hope this helps > >>> /Stefan > >>> > >>> On Sun, Feb 9, 2020 at 6:31 PM david larsson > >>> <david.lars...@selfhosted.xyz> wrote: > >>> > >>>> Hi everyone, > >>>> I am trying to wrap my head around how to use the python-on-guile > >>>> library, but Im struggling. Does anyone have example code that > >> might > >>>> > >>>> help, and which isn't too advanced? > >>>> > >>>> All tips and suggestions appreciated! > >>>> > >>>> Best regards, > >>>> David > >
