diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -5703,11 +5703,6 @@
     some_pushed = False
     result = 0
     for path in urlutil.get_push_paths(repo, ui, dests):
-        if not path:
-            raise error.ConfigError(
-                _(b'default repository not configured!'),
-                hint=_(b"see 'hg help config.paths'"),
-            )
         dest = path.pushloc or path.loc
         branches = (path.branch, opts.get(b'branch') or [])
         ui.status(_(b'pushing to %s\n') % urlutil.hidepassword(dest))
diff --git a/mercurial/utils/urlutil.py b/mercurial/utils/urlutil.py
--- a/mercurial/utils/urlutil.py
+++ b/mercurial/utils/urlutil.py
@@ -453,7 +453,10 @@
         elif b'default' in ui.paths:
             yield ui.paths[b'default']
         else:
-            yield None
+            raise error.ConfigError(
+                _(b'default repository not configured!'),
+                hint=_(b"see 'hg help config.paths'"),
+            )
     else:
         for dest in dests:
             yield ui.getpath(dest)