python: Improve compatibility with Debian 13

The "python" binary is no longer provided by default -> adjust Makefile.

(cherry picked from commit 70003cf)

Author: liviuchircu

CREDITS

@@ -6,104 +6,104 @@
 
 ----------
 
-N: Steven Ayre 
+N: Steven Ayre
 E: steveayre@gmail.com
 
-N: Norm Brandinger 
+N: Norm Brandinger
 E: n.brandinger@gmail.com
 
-N: Dirk Brouwers 
+N: Dirk Brouwers
 E: dirkbrouwers@hotmail.com
 
-N: Ryan Bullock 
+N: Ryan Bullock
 E: ryan@piratel.com
 
-N: Mattia Campagna 
+N: Mattia Campagna
 E: me@mattiacampagna.com
 
-N: Liviu Chircu 
+N: Liviu Chircu
 E: liviu@opensips.org
 
-N: Remi Collet 
+N: Remi Collet
 E: remi@famillecollet.com
 
-N: Razvan Crainea 
+N: Razvan Crainea
 E: razvan@opensips.org
 
-N: Danielzt 
+N: Danielzt
 E: danielzt@users.noreply.github.com
 
-N: Ravitez Dondeti 
+N: Ravitez Dondeti
 E: dondetir@users.noreply.github.com
 
-N: Artiom Druz 
+N: Artiom Druz
 E: 38580109+Shkiperon@users.noreply.github.com
 
-N: Patrice Fournier 
+N: Patrice Fournier
 E: patrice.fournier@t38fax.com
 
-N: Jasper Hafkenscheid 
+N: Jasper Hafkenscheid
 E: jasper.hafkenscheid@voys.nl
 
-N: Ross Henderson 
+N: Ross Henderson
 E: rossmck@mac.com
 
-N: Bogdan-Andrei Iancu 
+N: Bogdan-Andrei Iancu
 E: bogdan@opensips.org
 
-N: Pavel Kohout 
+N: Pavel Kohout
 E: pav.kohout@gmail.com
 
-N: Larry Laffer 
+N: Larry Laffer
 E: larrylaffer130@gmail.com
 
-N: Peter Lemenkov 
+N: Peter Lemenkov
 E: lemenkov@gmail.com
 
-N: Vlad Paiu 
+N: Vlad Paiu
 E: vladpaiu@opensips.org
 
-N: Ken Rice 
+N: Ken Rice
 E: krice@sipnavigator.com
 
-N: Ron 
+N: Ron
 E: ron@cellact.nl
 
-N: Ovidiu Sas 
+N: Ovidiu Sas
 E: osas@voipembedded.com
 
-N: Ibrahim Shahzad 
+N: Ibrahim Shahzad
 E: 48486042+IbrahimShahzad@users.noreply.github.com
 
-N: James Sharp 
+N: James Sharp
 E: james@fivecats.org
 
-N: Jason Shugart 
+N: Jason Shugart
 E: jasonshugart@gmail.com
 
-N: Maksym Sobolyev 
+N: Maksym Sobolyev
 E: sobomax@sippysoft.com
 
-N: Andrej Solovjov 
+N: Andrej Solovjov
 E: solovjov@kompaas.tech
 
-N: James Stanley 
+N: James Stanley
 E: james@incoherency.co.uk
 
-N: Darius Stefan 
+N: Darius Stefan
 E: darius.stefan@opensips.org
 
-N: Bence Szigeti 
+N: Bence Szigeti
 E: bence.szigeti@gohyda.com
 
-N: Jupiter Tang 
+N: Jupiter Tang
 E: 36952362@qq.com
 
-N: David Trihy 
+N: David Trihy
 E: 116663213+davidtrihy-genesys@users.noreply.github.com
 
-N: andingv 
+N: andingv
 E: 74421031+andingv@users.noreply.github.com
 
-N: jupiter 
+N: jupiter
 E: 36952362@qq.com

modules/python/Makefile

@@ -10,7 +10,11 @@ auto_gen=
 NAME=python.so
 
 ifeq (,$(PYTHON))
-PYTHON=python
+PYTHON := $(shell command -v python3 2>/dev/null || command -v python 2>/dev/null)
+endif
+
+ifeq (,$(PYTHON))
+$(error Python interpreter not found; install python3 or set PYTHON=/path/to/python)
 endif
 
 PYTHON_VERSION=${shell ${PYTHON} -c "import sysconfig;print(sysconfig.get_config_var('VERSION'))"}