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

[gnipi]

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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, `

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