--- rrule.py.orig	Wed Feb 29 18:32:29 2012
+++ rrule.py	Wed Feb 29 18:46:39 2012
@@ -42,6 +42,7 @@
  HOURLY,
  MINUTELY,
  SECONDLY) = range(7)
+FREQNAMES = ['YEARLY','MONTHLY','WEEKLY','DAILY','HOURLY','MINUTELY','SECONDLY']
 
 # Imported on demand.
 easter = None
@@ -469,6 +470,32 @@
         if self._bysecond_internal:
             return None
         return self._bysecond
+
+
+    def __str__(self):
+        parts = ['FREQ='+FREQNAMES[self.freq]]
+        if self.interval != 1:
+            parts.append('INTERVAL='+str(self.interval))
+        if self.wkst:
+            parts.append('WKST='+str(self.wkst))
+        if self.count:
+            parts.append('COUNT='+str(self.count))
+
+        for name, value in [
+                ('BYSETPOS', self.bysetpos),
+                ('BYMONTH', self.bymonth),
+                ('BYMONTHDAY', self.bymonthday),
+                ('BYYEARDAY', self.byyearday),
+                ('BYWEEKNO', self.byweekno),
+                ('BYWEEKDAY', self.byweekday),
+                ('BYHOUR', self.byhour),
+                ('BYMINUTE', self.byminute),
+                ('BYSECOND', self.bysecond),
+                ]:
+            if value:
+                parts.append(name+'='+','.join(str(v) for v in value))
+
+        return ';'.join(parts)
 
 
     def _iter(self):