and the winner of the dunce of the year is

buypeeb.py

@@ -69,6 +69,9 @@ class BuypeebApp:
 		self.settings.save()
 		self.app.quit()
 
+	def btnAddClicked(self, widget):
+		pass
+
 if __name__ == '__main__':
 	app = BuypeebApp()
 	app.run(sys.argv)

listing.py

@@ -11,8 +11,12 @@ class YahooAuctionsItem:
 	def __init__(self, name: str, url: str):
 		# note - incoming url is not validated in any way!
 		self.name = name
-		self.url = re.match(url.rstrip("/"), r"([^?]+)") # remove trailing slashes and query params
-		self.id = re.match(self.url, r".+\/(.+?)$") # extract "x12345" from "https://buyee.jp/whatever/blah/x12345"
+		try:
+			self.url = re.match(r"([^?]+)", url.rstrip("/")).group(1) # remove trailing slashes and query params
+		except:
+			# ???
+			raise
+		self.id = re.match(r".+\/(.+?)$", self.url) # extract "x12345" from "https://buyee.jp/whatever/blah/x12345"
 		self.last_checked = datetime.fromisoformat('1970-01-01')
 		self.available = True
 		self.update()

settings.py

@@ -32,5 +32,5 @@ class BuypeebSettings:
 		def set(self, setting: str, value):
 			self.s['setting'] = value
 
-		def watch(self, name: string, url: string):
+		def watch(self, name: str, url: str):
 			self.s['watchlist'].add(YahooAuctionsItem(name, url))

ui/main.glade

@@ -146,6 +146,7 @@
                         <property name="label" translatable="yes">Add new</property>
                         <property name="use_underline">True</property>
                         <property name="stock_id">gtk-add</property>
+                        <signal name="clicked" handler="btnAddClicked" swapped="no"/>
                         <accelerator key="n" signal="clicked" modifiers="GDK_CONTROL_MASK"/>
                       </object>
                       <packing>
@@ -321,6 +322,7 @@
                       <object class="GtkToolButton">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
+                        <property name="action_name">app.shutdown</property>
                         <property name="label" translatable="yes">Quit</property>
                         <property name="use_underline">True</property>
                         <property name="stock_id">gtk-quit</property>