Attempt to avoid crashing with python3.15

Author: nthykier

Changelog.txt

@@ -11,6 +11,8 @@ DEPENDENCY / BASELINE CHANGES:
 - Restore compatibility with pygame 1.9.4 that had a broken
   `blits` function. Thanks to onpon4 for reporting the issue
   (Closes: #293) (nthykier)
+- Add guard to prevent crashing when `locale.getdefaultencoding`
+  is removed in python3.15.
 
 USER-VISIBLE CHANGES:
 - New feature: Quicksaves - save on `F5` (replacing "reload theme")

singularity/code/i18n.py

@@ -57,7 +57,9 @@ def _get_main_localedir():
 
 try:
     language = locale.getdefaultlocale()[0] or default_language
-except RuntimeError:
+except (RuntimeError, AttributeError):
+    # locale.getdefaultlocale is slated for removal in 3.15.
+    # With the attribute error, we should at least not crash when the time comes.
     language = default_language
 
 
@@ -73,7 +75,7 @@ def set_language(lang=None, force=False):
     if lang in langs:
         language = lang
     else:
-        # Let's try to be smart: if base language exists for another for another
+        # Let's try to be smart: if base language exists for another
         # country, use it. So es_ES => es_AR, pt_PT => pt_BR, etc
         code = lang.split("_")[0]
         languages = [l for l in langs if code == l.split("_")[0]]