The PythonLabs Windows installer for Python 2.3.1 will begin shipping Python's doc set in Microsoft .chm format, instead of as 1,200+ separate HTML files. A .chm file allows for fast and powerful searches (Boolean, proximity, wildcard, similarity) over the entire doc set.
For Python 2.3, download Python23.chm, about 3.2MB. This was built from the shipped HTML doc set via the Doc/tools/prechm.py script (in Python CVS).