python issue30681 is fixed with Python 3.10

pyquarantine/_runtime_patches.py

@@ -12,6 +12,7 @@
 # along with pyquarantine.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+from sys import version_info
 import encodings
 
 
@@ -150,6 +151,24 @@ def get_obs_local_part(value):
 setattr(email._header_value_parser, "get_obs_local_part", get_obs_local_part)
 
 
+#######################################
+#  add charset alias for windows-874  #
+#######################################
+#
+# https://bugs.python.org/issue17254
+#
+# fix: https://github.com/python/cpython/pull/10237
+
+aliases = encodings.aliases.aliases
+
+for alias in ["windows-874", "windows_874"]:
+    if alias not in aliases:
+        aliases[alias] = "cp874"
+
+setattr(encodings.aliases, "aliases", aliases)
+
+
+if version_info.major == 3 and version_info.minor < 10:
     # https://bugs.python.org/issue30681
     #
     # fix: https://github.com/python/cpython/pull/22090
@@ -210,20 +229,3 @@ def parse(cls, value, kwds):
 
 
     setattr(email.headerregistry.DateHeader, "parse", parse)
-
-
-#######################################
-#  add charset alias for windows-874  #
-#######################################
-#
-# https://bugs.python.org/issue17254
-#
-# fix: https://github.com/python/cpython/pull/10237
-
-aliases = encodings.aliases.aliases
-
-for alias in ["windows-874", "windows_874"]:
-    if alias not in aliases:
-        aliases[alias] = "cp874"
-
-setattr(encodings.aliases, "aliases", aliases)