Programming Python
by Mark Lutz


Here are the changes that were made in the 11/98 reprint:


(560) First para, changed to:
	"Since integers are a central datatype, most of the
	number operation slots are filled in. In user-defined
	numeric types, we can pick and choose operators to
	respond to. In Python 1.5 (and later), use NULL pointers
	in unimplemented operation slots. Python releases 1.4
	and earlier might not detect NULL pointers; instead,
	provide pointers to dummy functions for unimplemented
	operations."

(828) Third para, first sentence:
	removed the errant "and" from between "contains" and "items"

{845}	9th line of code:
	moved it down with the next line and set the tab flush
	with the other lines starting in "x"

{852} 3rd block of code:
	file = open('data', r)...
	now reads
	file = open('data', 'r')...

(867) (index) added entry for "==" after entry for "=" that reads:
	==(equality) operator, 92

(870) removed "==" entry
	also:
	combined "equality" and "equality operator" entries to read:
	equality and equality operators, 91-92, 827

(873) added entry:
	is operator, 92, 550