import pymssql

db_host = "100.100.100.100:1433"
db_name = "database"
db_user = "username"
db_pass = "password"

conn = pymssql.connect(host=db_host, user=db_user, password=db_pass)

## gives:

Traceback (most recent call last):
  File "dbtest.py", line 8, in <module>
    conn = pymssql.connect(host=db_host, user=db_user, password=db_pass)
  File "pymssql.pyx", line 456, in pymssql.connect (pymssql.c:6017)
    raise InterfaceError(e[0])
pymssql.InterfaceError: Connection to the database failed for an unknown reason.