Fix python version check (python's sysconfig.get_python_version() returns only major.minor)

meson.build

@@ -914,7 +914,7 @@ perl = find_program('perl5', 'perl', 'perl5.005', 'perl5.004', 'perl')
 # This can be useful in particular when cross-compiling since anyway
 # the interpreter is not useful at build time.
 
-python3_minver = '>=3.6.0'
+python3_minver = '>=3.6'
 
 if get_option('python') == 'never'
   python_warning = '''
@@ -933,10 +933,11 @@ else
   always_install = get_option('python') == 'always'
 
   python = pythonmod.find_installation('python3', required: false)
+  message('Found Python @0@'.format(python.language_version()))
 
   python_found = (
     python.found() and
-    python.language_version().version_compare('>='+python3_minver)
+    python.language_version().version_compare(python3_minver)
   )
   if python_found
     pygobject_found = run_command(
@@ -947,21 +948,22 @@ else
         '''sys.exit(gi.check_version(version))''',
       ]),
     ).returncode() == 0
+    message('Found Pygobject: @0@'.format(pygobject_found))
     python_found = python_found and pygobject_found
   endif
 
   if (not python_found) and (not always_install)
     error('''
-    Python >=@0@ or PyGObject was not found.
+    Python @0@ or PyGObject was not found.
     Note that you may install the Python plug-ins even if you have no Python
     interpreter at build-time by passing the configure option -Dpython=always.
-    Just make sure that a Python >=@0@ interpreter is available at run-time.
+    Just make sure that a Python @0@ interpreter is available at run-time.
     '''.format(python3_minver))
   endif
 
   if (not python_found) and (always_install)
     python_warning = '''
-    Python >=@0@ or PyGObject was not found.
+    Python @0@ or PyGObject was not found.
     Python plug-ins will be installed anyway but you should make sure that
     a compatible Python interpreter is available at installation, otherwise
     installed plug-ins won't be usable.