python 3.5 (maybe not only 3.5) issue with sql request strings

[gnipi]

`

Because of string encoding (mixing bytes and str) need to patch fbcore.py:
`
@@ -783,7 +783,7 @@ def create_database(sql='', sql_dialect=3, dsn='', user=None, password=None,
else:
dsn = database

•    dsn = b(dsn,_FS_ENCODING)
  

•    #dsn = b(dsn,_FS_ENCODING)
  
   # Parameter checks
  

@@ -801,7 +801,9 @@ def create_database(sql='', sql_dialect=3, dsn='', user=None, password=None,
trans_handle = isc_tr_handle(0)
db_handle = isc_db_handle(0)

xsqlda = xsqlda_factory(1)

• sql = b(sql,_FS_ENCODING)

• For yet unknown reason, the isc_dsql_execute_immediate segfaults when

  NULL (None) is passed as XSQLDA, so we provide one here

  api.isc_dsql_execute_immediate(isc_status, db_handle, trans_handle,
  `

`