fix m bug

Signed-off-by: Mattias Andrée <maandree@operamail.com>

2 files changed, 10 insertions, 8 deletions

diff --git a/examples/comprehensive b/examples/comprehensive
index 580d0bf..7510744 100644
--- a/examples/comprehensive
+++ b/examples/comprehensive
@@ -395,10 +395,11 @@ def periodically(year, month, day, hour, minute, second, weekday, fade):
             for condition in conditions:
                 if condition in weather_modifiers:
                     dayness *= weather_modifiers[condition]
-            _bound, visibility = metar[1]
-            if (visibility_max is not None) and (visibility is not None):
-                if visibility < visibility_max:
-                    dayness *= visibility / visibility_max
+            if metar[1] is not None:
+                (_bound, visibility) = metar[1]
+                if (visibility_max is not None) and (visibility is not None):
+                    if visibility < visibility_max:
+                        dayness *= visibility / visibility_max
     
     # Do not do unnecessary work.
     if fade is None:
diff --git a/examples/weather b/examples/weather
index 3fac3e4..e65d0cf 100644
--- a/examples/weather
+++ b/examples/weather
@@ -60,10 +60,11 @@ if metar is not None:
     for condition in conditions:
         if condition in modifiers:
             dayness *= modifiers[condition]
-    _bound, visibility = metar[1]
-    if (visibility_max is not None) and (visibility is not None):
-        if visibility < visibility_max:
-            dayness *= visibility / visibility_max
+    if metar[1] is not None:
+        _bound, visibility = metar[1]
+        if (visibility_max is not None) and (visibility is not None):
+            if visibility < visibility_max:
+                dayness *= visibility / visibility_max
 
 # Calculation of the colour temperature.
 temp = temperature_day * dayness + temperature_night * (1 - dayness)