fix: don't silently ignore WindowsError

Also, `pyerrors.h` was included through `Python.h`, removing it

Author: mokurin000

Lib/locale.py

@@ -571,8 +571,9 @@ def _getdefaultlocale(envvars=('LC_ALL', 'LC_CTYPE', 'LANG', 'LANGUAGE')):
         code, encoding = _locale._getdefaultlocale()
     except (ImportError, AttributeError):
         pass
-    except OSError:
-        return None
+    except OSError as e:
+        if sys.platform == "win32" and isinstance(e, WindowsError):
+            raise
     else:
         # add other platform-specific processing here, if
         # necessary...

Modules/_localemodule.c

@@ -29,7 +29,6 @@ This software comes with no warranty. Use at your own risk.
 #    define WIN32_LEAN_AND_MEAN
 #  endif
 #  include <windows.h>
-#  include "pyerrors.h"             // PyErr_SetFromWindowsErr()
 #endif
 
 PyDoc_STRVAR(locale__doc__, "Support for POSIX locales.");