Update the script and cleanup some code

recent.py

@@ -1,26 +1,42 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 import sys
 import time
 
 import gi
-gi.require_version('Gtk', '3.0')
-from gi.repository import Gtk, GObject, Gio
-
-try:
-    arg = sys.argv[1]
-    input_file = Gio.File.new_for_path(arg)
-    if not input_file.query_exists():
-        print("No such file or directory: %s" % arg)
-        exit(1)
-    info = input_file.query_info('time::access', Gio.FileQueryInfoFlags.NONE, None)
-    info.set_attribute_uint64("time::access", time.time())
+
+gi.require_versions({
+    'Gtk' : '3.0', 
+    'GLib': '2.0',
+})
+from gi.repository import Gtk, Gio, GLib
+
+
+def add_to_recent(file_path):
+    input_file = Gio.File.new_for_path(file_path)
+    if not input_file.query_exists(None):
+        print(f"No such file or directory: {file_path}")
+        sys.exit(1)
+
+    info = input_file.query_info("time::access", Gio.FileQueryInfoFlags.NONE, None)
+    info.set_attribute_uint64("time::access", int(time.time()))
     input_file.set_attributes_from_info(info, Gio.FileQueryInfoFlags.NONE, None)
+
     uri = input_file.get_uri()
-    rm = Gtk.RecentManager()
-    rm = rm.get_default()
+    rm = Gtk.RecentManager.get_default()
     rm.add_item(uri)
-    GObject.idle_add(Gtk.main_quit)
+
+    GLib.idle_add(Gtk.main_quit)
     Gtk.main()
-except IndexError:
-    exit(0)
+
+
+def main():
+    if len(sys.argv) < 2:
+        print(f"Usage: {sys.argv[0]} filename")
+        sys.exit(0)
+
+    add_to_recent(sys.argv[1])
+
+
+if __name__ == "__main__":
+    main()