# HG changeset patch
# User sylvain.thenault@logilab.fr
# Date 1241544629 -7200
# Node ID 5dae28906769237f62595633816af7bfb0355014
# Parent  ee0bea49e0e1a1bbc319ab405875bc18959d9408
next_month / previous_month now support a new arg to give number of month

diff -r ee0bea49e0e1 -r 5dae28906769 utils.py
--- a/utils.py	Tue May 05 19:29:59 2009 +0200
+++ b/utils.py	Tue May 05 19:30:29 2009 +0200
@@ -37,15 +37,22 @@
     return somedate
 
 ONEDAY = timedelta(days=1)
+ONEWEEK = timedelta(days=7)
 
 def days_in_month(date_):
     return monthrange(date_.year, date_.month)[1]
 
-def previous_month(date_):
-    return first_day(date_) - ONEDAY
+def previous_month(date_, nbmonth=1):
+    while nbmonth:
+        date_ = first_day(date_) - ONEDAY
+        nbmonth -= 1
+    return date_
 
-def next_month(date_):
-    return last_day(date_) + ONEDAY
+def next_month(date_, nbmonth=1):
+    while nbmonth:
+        date_ = last_day(date_) + ONEDAY
+        nbmonth -= 1
+    return date_
 
 def first_day(date_):
     return date(date_.year, date_.month, 1)