fixes a bug when trying to build on windows (python dependency)

Change-Id: Ic7b95d704f40182553e8f9dbf673ae9a228117fd
Adds look up in pairs block to lists

It also fixes type for item in lists_insert_item and YAIL generation for that
block

Change-Id: I0e59b7129737314e874a0146f34a0c539c06c9b0