Remove the last use of win32process

src/calibre/debug.py

@@ -180,19 +180,17 @@ def print_basic_debug_info(out=None):
         out = sys.stdout
     out = functools.partial(prints, file=out)
     import platform
+    from contextlib import suppress
     from calibre.constants import (__appname__, get_version, isportable, ismacos,
-                                   isfrozen, is64bit)
+                                   isfrozen, is64bit, plugins)
     from calibre.utils.localization import set_translators
     out(__appname__, get_version(), 'Portable' if isportable else '',
         'embedded-python:', isfrozen, 'is64bit:', is64bit)
     out(platform.platform(), platform.system(), platform.architecture())
     if iswindows and not is64bit:
-        try:
-            import win32process
-            if win32process.IsWow64Process():
+        with suppress(Exception):
+            if plugins['winutil'][0].is_wow64_process():
                 out('32bit process running on 64bit windows')
-        except:
-            pass
     out(platform.system_alias(platform.system(), platform.release(),
             platform.version()))
     out('Python', platform.python_version())

src/calibre/utils/windows/winutil.cpp

@@ -835,6 +835,13 @@ run_cmdline(PyObject *self, PyObject *args) {
 	Py_RETURN_NONE;
 }
 
+static PyObject*
+is_wow64_process(PyObject *self, PyObject *args) {
+	BOOL ans;
+	if (!IsWow64Process(GetCurrentProcess(), &ans)) return PyErr_SetFromWindowsErr(0);
+	return Py_BuildValue("O", ans ? Py_True : Py_False);
+}
+
 // Icon loading {{{
 #pragma pack( push )
 #pragma pack( 2 )
@@ -969,6 +976,7 @@ static const char winutil_doc[] = "Defines utility methods to interface with win
 #define M(name, args) { #name, name, args, ""}
 static PyMethodDef winutil_methods[] = {
 	M(run_cmdline, METH_VARARGS),
+	M(is_wow64_process, METH_NOARGS),
     M(get_dll_directory, METH_NOARGS),
     M(create_mutex, METH_VARARGS),
     M(get_async_key_state, METH_VARARGS),