[BUILD] Update handling of version string to avoid problems on newer python versions

  * The use of the "-" separator in code_saturne version's strings leads
    to errors in setup.py starting with python 3.13.
  * We add a simple parsing function to procude a PEP440 compliant
    version string.

Author: Chaï Koren

python/setup.py

@@ -22,6 +22,38 @@
 # Get environment variables needed
 # ==============================================================================
 
+# ------------------------------------------------------------------------------
+# Simple version string parser to avoid errors
+# ------------------------------------------------------------------------------
+
+def _parse_saturne_version_string(version_string):
+    """
+    Parse a version string and return a PEP440 compliant one.
+    """
+
+    retval = ''
+    if version_string and len(version_string) > 0:
+        _string = version_string.split('-')
+        retval = _string[0]
+        if len(_string) > 1:
+            if _string[1] == "alpha":
+                retval += 'a0'
+            elif _string[1] == "beta":
+                retval += 'b0'
+            elif _string[1][:2] == 'rc':
+                retval += _string[1]
+            elif _string[1] == 'patch':
+                retval += '.post0'
+            else:
+                retval += '.dev0'
+
+    else:
+        retval = 'master'
+
+    return retval
+
+# ------------------------------------------------------------------------------
+
 _cs_opts = {'enable_gui':False,
             'use_qt5':False,
             'exclude_dirs':[],
@@ -35,7 +67,7 @@
 if '--version' in sys.argv:
     index = sys.argv.index('--version')
     sys.argv.pop(index)
-    _cs_opts['version'] = sys.argv.pop(index)
+    _cs_opts['version'] = _parse_saturne_version_string(sys.argv.pop(index))
 else:
     _cs_opts['version'] = 'master'