Merge pull request #125 from patrick330602/fix-missing-import-os

fix a small "os not defined" issue

opensipscli/libs/sqlalchemy_utils.py

@@ -31,6 +31,7 @@
 
 from copy import copy
 
+import os
 import sqlalchemy as sa
 from sqlalchemy.engine.url import make_url
 from sqlalchemy.exc import OperationalError, ProgrammingError