pnc

require "tempfile"
require 'spec/runner/formatter/html_formatter'
require "cgi"

# When we're running specs, modify our class under test to create
# an image tag when it is inspected.
class Tree
  def inspect
    file = Tempfile.new("debug-tree")
    self.to_image(file.path)

pnc

#!/usr/bin/python

import socket
import struct
import sys

# We want unbuffered stdout so we can provide live feedback for
# each TTL. You could also use the "-u" flag to Python.
class flushfile(file):
    def __init__(self, f):