[Freeswitch-users] ESL python library for python3

[Iqbal Abdullah]

If you run configure while in a py3 environment (i.e via virtualenv)
the configure will correctly detect the py3 variables.

I made the build against py3 on 1.4.18, and changes need to be done at
3 places though, after running configure above.

1) libs/esl/python/python-config because as it is this code is not py3
compliant. You can easily use 2to3 for this.
2) Make a slight change to the Makefile in libs/esl/python to pass the
-py3 parameter to swig instead, so it produces a py3 compliant
esl_wrap.cpp

--- a/libs/esl/python/Makefile
+++ b/libs/esl/python/Makefile
@@ -5,7 +5,7 @@ SITE_DIR=$(DESTDIR)/`python -c "from
distutils.sysconfig import get_python_lib;
 all: _ESL.so

 esl_wrap.cpp:
-       swig -module ESL -classic -python -c++ -DMULTIPLICITY -threads
-I../src/include -o esl_wrap.cpp ../ESL.i
+       swig -module ESL -py3 -python -c++ -DMULTIPLICITY -threads
-I../src/include -o esl_wrap.cpp ../ESL.i

 esl_wrap.o: esl_wrap.cpp
        $(CXX) $(CXX_CFLAGS) $(CXXFLAGS) $(LOCAL_CFLAGS) -c
esl_wrap.cpp -o esl_wrap.o

3) Finally, I'm not sure if this is needed for all environment (mine is
Ubuntu 14.04 LTS x86_64) but I made a slight change to the
libs/esl/python/python-config after putting it through 2to3:

 elif opt in ('--libs', '--ldflags'):
     libs = getvar('LIBS').split() + getvar('SYSLIBS').split()
-    libs.append('-lpython'+pyver)
+    if pyver[0] == "3":
+        libs.append('-lpython'+pyver+'m')
+    else:
+        libs.append('-lpython'+pyver)

In my environment, the python3 library is called libpython3.4m, so I
had to append an "m" at the end of the library name, i.e:


On 18 May 2015 at 12:05, Michael Jerris <mike at jerris.com> wrote:
> we will need some way that uses configure to detect the right python, and
> builds against old and new python.
>
> On May 18, 2015, at 3:00 PM, Iqbal Abdullah <iqbal.b.abdullah at gmail.com>
> wrote:
>
> Michael,
>
> I have managed to build the library againts py3 and will make a pull request
> later.
>
> On May 18, 2015 11:57 AM, "Michael Jerris" <mike at jerris.com> wrote:
>>
>> I don't think we have ever tried it, but we would be happy to take pull
>> requests to fix any issues with it.
>>
>> > On May 16, 2015, at 10:30 AM, Iqbal Abdullah
>> > <iqbal.b.abdullah at gmail.com> wrote:
>> >
>> > Hello,
>> >
>> > I've managed to compile, install and use the python esl library from
>> > freeswitch 1.4.18, but am now wondering is there a way to get the
>> > python esl library for python3?
>> >
>> > I've tried changing the Makefiles in libs/esl/python to point to
>> > python3 and made sure my dev packages are installed, but the
>> > compilation failed.
>> >
>> > Does the python esl module supports python3?
>>
>
>
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