Exit stats dialog crashed if no data was available

Showing the exit stats dialog (pressing 'e' on the connection page) stacktraced if no exit stats were available... https://trac.torproject.org/projects/tor/ticket/25801

Exit stats dialog crashed if no data was available
1d2683e0 · Damian Johnson · d46950c6 · 1d2683e0 · 1d2683e0
Commit 1d2683e0 authored Apr 15, 2018 by Damian Johnson
--- a/nyx/panel/connection.py
+++ b/nyx/panel/connection.py
@@ -391,7 +391,7 @@ class ConnectionPanel(nyx.panel.DaemonPanel):

    def _show_exiting_port_usage():
      counts = {}
-      key_width = max(map(len, self._exit_port_usage.keys()))
+      key_width = max(map(len, self._exit_port_usage.keys())) if self._exit_port_usage else 0

      for k, v in self._exit_port_usage.items():
        usage = connection.port_usage(k)

--- a/web/changelog/index.html
+++ b/web/changelog/index.html
@@ -83,6 +83,7 @@
        <li><span class="component">Connections</span>
          <ul>
            <li>Geoip information unavailable for inbound connections</li>
+            <li>Dialog showing exit statistics crashed when no data was available (:trac:`25801`)</li>
          </ul>
        </li>