I'd like to add basic spreadsheet-like functionalities to my application which bases its data model upon pytables, I was looking for a way to modify the structure of an exsistent Table, in particular:
1) How to move/insert a column into the Table 2) How to change the type of a column and convert its data 3) How to change the name of a column If I well understood, by design the structure of columns defined for a table (by the custom tables.IsDescription subclass) is not meant to be directly changed by the user after the table is created. Users may circumnavigate the problem creating a temporary table with the desidered column structure and then merge the old column values into the new table structure, like it is shown in the example "add-column.py" of pytables' documentation, but obviously it is not an efficient approach compared to an in-place change of column properties. Are there are alternative ways to accomplish these task? If not, is there space in pytables development plans to enhance the possibilities to modify the columns' structure of a table? Thank you. Luca Della Santina ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Pytables-users mailing list Pytables-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pytables-users
