python list to knime collection object

How can I convert python list object into knime collection object?
I have a python node that generate list in each cell of a column.I need to put each element of each list object into a row,I guess the logical way is to convert list to collection object then use ungroup node to expend the collection.pls let me know if there is better way of doing this.
Many thanks

If you put everything into one cell, you need to think about a cell separator. With the Cell Splitter node you can derive a collection cell directly from it.