no longer call setlocale() as advised by Python docs

apprise/AppriseLocale.py

@@ -34,6 +34,7 @@
 import locale
 import contextlib
 import os
+import re
 from os.path import join
 from os.path import dirname
 from os.path import abspath
@@ -96,6 +97,17 @@ class AppriseLocale:
 
     """
 
+    # Locale regular expression
+    _local_re = re.compile(
+        r'^\s*(?P<lang>[a-z]{2})([_:]((?P<country>[a-z]{2}))?'
+        r'(\.(?P<enc>[a-z0-9]+))?|.+)?', re.IGNORECASE)
+
+    # Define our default encoding
+    _default_encoding = 'utf-8'
+
+    # Define our default language
+    _default_language = 'en'
+
     def __init__(self, language=None):
         """
         Initializes our object, if a language is specified, then we
@@ -210,19 +222,9 @@ def detect_language(lang=None, detect_fallback=True):
             for variable in ('LC_ALL', 'LC_CTYPE', 'LANG', 'LANGUAGE'):
                 localename = lookup(variable, None)
                 if localename:
-                    if variable == 'LANGUAGE':
-                        localename = localename.split(':')[0]
-
-                    try:
-                        locale.setlocale(locale.LC_ALL, localename)
-
-                    except locale.Error:
-                        logger.warning(
-                            'Invalid language define %s=%s',
-                            variable,
-                            lookup(variable, None))
-                        continue
-                    break
+                    result = AppriseLocale._local_re.match(localename)
+                    if result and result.group('lang'):
+                        return result.group('lang').lower()
 
             try:
                 # Acquire our locale

test/test_locale.py

@@ -164,8 +164,7 @@ def test_detect_language_windows_users():
         assert AppriseLocale.AppriseLocale.detect_language() == 'en'
 
 
-@pytest.mark.skipif(sys.platform == "win32", reason="Does not work on Windows")
-def test_detect_language_windows_users_croaks_please_review():
+def test_detect_language_using_env():
     """
     When enabling CI testing on Windows, those tests did not produce the
     correct results. They may want to be reviewed.