Backport pull request #2254

search: consistently warn about excessive "site:" operators if no results

sopel/modules/search.py

@@ -135,7 +135,12 @@ def bing(bot, trigger):
     if result:
         bot.say(result)
     else:
-        bot.reply("No results found for '%s'." % query)
+        msg = "No results found for '%s'." % query
+        if query.count('site:') >= 2:
+            # This check exists because of issue #1415. The git.io link will take the user there.
+            # (Better a sopel.chat link, but it's not set up to do that. This is shorter anyway.)
+            msg += " Try again with at most one 'site:' operator. See https://git.io/fpKtP for why."
+        bot.reply(msg)
 
 
 @plugin.command('search')
@@ -150,7 +155,15 @@ def search(bot, trigger):
     bu = bing_search(query) or '-'
     du = duck_search(query) or '-'
 
-    if bu == du:
+    if bu == '-' and du == '-':
+        msg = "No results found for '%s'." % query
+        if query.count('site:') >= 2:
+            # This check exists because of issue #1415. The git.io link will take the user there.
+            # (Better a sopel.chat link, but it's not set up to do that. This is shorter anyway.)
+            msg += " Try again with at most one 'site:' operator. See https://git.io/fpKtP for why."
+        bot.reply(msg)
+        return
+    elif bu == du:
         result = '%s (b, d)' % bu
     else:
         if len(bu) > 150: