Tim Chase <python.l...@tim.thechases.com> writes: > Again, the conversion to/from decimal hasn't been a great cost in my > experience, as it's overwhelmed by the I/O cost of shoveling the > data to/from disk.
I've found that cpu costs both for processing and conversion are significant. Also, using a binary format makes the file a lot smaller, which decreases the i/o cost as well eliminating the conversion cost. And, the conversion can introduce precision loss, another thing to be avoided. The famous "butterfly effect" was serendipitously discovered that way. -- http://mail.python.org/mailman/listinfo/python-list