# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1443267533 -10800
# Node ID 088bb2621595dcd36f54a42a9698a009e7f9b65a
# Parent  9cecab5a086201e3968f7516601c0f0baf97d749
weather: Do not attempt to access weather data through unset / invalid
min/max temp keys.

diff -r 9cecab5a0862 -r 088bb2621595 weather.tcl
--- a/weather.tcl	Thu Aug 27 13:04:13 2015 +0300
+++ b/weather.tcl	Sat Sep 26 14:38:53 2015 +0300
@@ -223,9 +223,14 @@
     }
     close $ufile
     
-    # Store min/max 
-    set weather_data(w_min) $weather_data($wtemp_min_key)
-    set weather_data(w_max) $weather_data($wtemp_max_key)
+    # Store min/max
+    if {$wtemp_min_key != "" && $wtemp_max_key != ""} {
+      set weather_data(w_min) $weather_data($wtemp_min_key)
+      set weather_data(w_max) $weather_data($wtemp_max_key)
+    } else {
+      set weather_data(w_min) 0
+      set weather_data(w_max) 0
+    }
   } else {
     weather_log "Could not open data file: $uerrmsg"
   }