handle cities with spaces in the urllib.request version of weather05.…

…py (#3871)

handle cities with spaces in the urllib.request version of weather

docs/examples/guide/workers/weather05.py

@@ -1,3 +1,4 @@
+from urllib.parse import quote
 from urllib.request import Request, urlopen
 
 from rich.text import Text
@@ -30,7 +31,7 @@ def update_weather(self, city: str) -> None:
         worker = get_current_worker()
         if city:
             # Query the network API
-            url = f"https://wttr.in/{city}"
+            url = f"https://wttr.in/{quote(city)}"
             request = Request(url)
             request.add_header("User-agent", "CURL")
             response_text = urlopen(request).read().decode("utf-8")