# HG changeset patch
# User Anthony Truchet <anthony.truchet@logilab.fr>
# Date 1326369899 -3600
# Node ID e53c003e3d37fa989aa4ba60822a1ab845259a83
# Parent  098c83a998076809e47eeb63ad6242c33ac81451
[doc] Add a small docstring to RQLExpression constructor

diff -r 098c83a99807 -r e53c003e3d37 schema.py
--- a/schema.py	Wed Jan 11 18:28:17 2012 +0100
+++ b/schema.py	Thu Jan 12 13:04:59 2012 +0100
@@ -666,6 +666,12 @@
     full_rql = None
 
     def __init__(self, expression, mainvars, eid):
+        """
+        :type mainvars: sequence of RQL variables' names. Can be provided as a 
+                        comma separated string.
+        :param mainvars: names of the variables being selected.
+
+        """
         self.eid = eid # eid of the entity representing this rql expression
         assert mainvars, 'bad mainvars %s' % mainvars
         if isinstance(mainvars, basestring):