Code:
Traceback (most recent call last):
  File "./sqlmap.py", line 17, in <module>
    from _sqlmap import main
  File "/pentest/database/sqlmap/_sqlmap.py", line 27, in <module>
    from lib.controller.controller import start
  File "/pentest/database/sqlmap/lib/controller/controller.py", line 13, in <module>
    from lib.controller.action import action
  File "/pentest/database/sqlmap/lib/controller/action.py", line 10, in <module>
    from lib.controller.handler import setHandler
  File "/pentest/database/sqlmap/lib/controller/handler.py", line 27, in <module>
    from plugins.dbms.mssqlserver import MSSQLServerMap
  File "/pentest/database/sqlmap/plugins/dbms/mssqlserver/__init__.py", line 14, in <module>
    from plugins.dbms.mssqlserver.enumeration import Enumeration
  File "/pentest/database/sqlmap/plugins/dbms/mssqlserver/enumeration.py", line 28, in <module>
    from plugins.generic.enumeration import Enumeration as GenericEnumeration
  File "/pentest/database/sqlmap/plugins/generic/enumeration.py", line 16, in <module>
    from lib.core.common import BigArray
ImportError: cannot import name BigArray
root@bt:/pentest/database/sqlmap#