python - pygrametl KeyError when loading data from one to another table -


i experimenting pygrametl, trying data 1 table in database (source) table in destination database.

the source table has following schema: 

create table `sdata` (   `id` int(11) not null auto_increment,   `fname` varchar(255) default null,   `descr` varchar(255) default null,   primary key (`id`) ) engine=innodb auto_increment=4 default charset=utf8 comment=' ';

the destination table uses following schema:

create table `dtable` (   `id` int(11) not null auto_increment,   `dname` varchar(255) default null,   `ddescr` varchar(255) default null,   primary key (`id`) ) engine=innodb default charset=utf8;

in python have following code:

import pygrametl pygrametl.datasources import sqlsource, csvsource pygrametl.tables import dimension, facttable, slowlychangingdimension import pymysql  sourcedatabase = pymysql.connect(host='localhost', user='root', password='pass', database='source') destdatabase = pymysql.connect(host='localhost', user='root', password='pass', database='dest')  dw_conn_wrapper = pygrametl.connectionwrapper(connection=destdatabase)  sql = "select fname, descr sdata"  name_mapping = 'fname', 'descr'  source = sqlsource(connection=sourcedatabase, query=sql, names=name_mapping)  destdimension = dimension(     name='dtable',     key='id',     attributes=['dname', 'ddescr'])  row in source:     print(row)     destdimension.insert(row)  dw_conn_wrapper.commit() dw_conn_wrapper.close()  sourcedatabase.close()

the error getting following:

traceback (most recent call last): file ".\testex.py", line 35, in sourcedimension.insert(row) file "python\python36-32\lib\site-packages\pygrametl\tables.py", line 357, in insert self.targetconnection.execute(self.insertsql, row, namemapping) file "python\python36-32\lib\site-packages\pygrametl__init__.py", line 663, in execute self.__cursor.execute(stmt, arguments) file "python\python36-32\lib\site-packages\pymysql\cursors.py", line 164, in execute query = self.mogrify(query, args) file "python\python36-32\lib\site-packages\pymysql\cursors.py", line 143, in mogrify query = query % self._escape_args(args, conn) keyerror: 'dname'


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