Find out Package Locks

Use Following Script:

CLEAR COL BREAK COMPUTE
SET PAGES 100 PAUSE OFF VERIFY OFF FEEDBACK ON ECHO OFF

COL object_name FORMAT A35
COL type FORMAT A20
COL sid FORMAT 9999
COL held FORMAT A5
COL request FORMAT A7

SELECT session_id sid,
owner||'.'||name object_name,
type,
mode_held held,
mode_requested request
FROM dba_ddl_locks
WHERE name LIKE UPPER('%&object_name%')
/

SET PAGES 32 PAUSE OFF VERIFY OFF FEEDBACK ON ECHO OFF
PROMPT

When prompts give Package name