1. Assume the following type in C
				{
					typedef struct {
						int i;
					} hello_world_t;
					// and an exampolary instance
					hello_world_t my_hw;
				}
				>NOTE: compiling with debugging information is required (-ggdb under gcc)
			2. We create a pretty printer in python
				{@begin=python@
					# myPrettyPrinter.py
					class mybsPrinter:
						def to_string:
							return "Hello World"

					def mylookup(val):
						if str(val.type) == "hello_world_t":
							return mybsPrinter(val)
						return None

					gdb.pretty_printers.append(mylookup)
				@end=python@}
			3. Source the pretty printer code from inside gdb like so:
					$ python execfile('myPrettyPrinter.py')				# python 2
					$ python exec(open(('myPrettyPrinter.py').read())	# python 3
				or copy paste the whole thing into your .gdbinit after the keyword "python"
					python
					<...>
			4. Invoke our pretty printer by printing an appropriate instance
				$ p my_hw