id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	lang	patch	platform
1689	Deprecate is_tty	NotFound	NotFound	"docs/book/pir/ch08_io.pod describe the isatty method of FileHandle and FileHandle implements it. StringHandle and GzipHandle, however have a method called is_tty that return 0. This isn't a very useful combination.

In r47784 I implemented isatty in Handle, returning 0. That way isatty can be used with an arbitrary Handle without knowledge of is exact type.

This leaves an unuseful is_tty method. I propose to deprecate it immediately.
"	deprecation	closed	normal		core	2.5.0	medium	done					
