explicitly check for times when setting to CachedInfo

Author: ewdurbin

code/planet/cache.py

@@ -11,6 +11,7 @@
 
 import os
 import re
+import time
 
 # Regular expressions to sanitise cache filenames
 re_url_scheme = re.compile(r"^[^:]*://")
@@ -138,6 +139,8 @@ def set(self, key, value, cached=1):
 
         if value == None:
             return self.set_as_null(key, value)
+        elif isinstance(value, time.struct_time):
+            return self.set_as_date(key, value)
         else:
             try:
                 return self.set_as_string(key, value)