old_contents: """!backtothefuture <date> returns the delorean dashboard with the specified <date>"""
  
  import re
  import parsedatetime
  
  
  p = parsedatetime.Calendar()
  
  
  def backtothefutureday(datestr):
      dt = p.parse(datestr)[0]
      return 'http://www.itsbacktothefutureday.com/images/{year}/{month}/{day}.jpg'.format(year=dt.tm_year, month=dt.tm_mon, day=dt.tm_mday)
  
  
  def on_message(msg, server):
      text = msg.get("text", "")
      match = re.findall(r"!backtothefuture (.*)", text)
      if match:
          return backtothefutureday(match[0])
  
new_contents: """!backtothefuture <date> returns the delorean dashboard with the specified <date>"""
  
  import re
  import time
  
  import parsedatetime
  p = parsedatetime.Calendar()
  
  
  def backtothefutureday(datestr):
      dt, result = p.parse(datestr)
      if result == 0:
          return "I'm not eating that bogus date."
      if not isinstance(dt, time.struct_time):
          if len(dt) != 9:
              return 'Could not extrapolate date values from parsed date. Your date smells bogus.'
          dt = time.struct_time(dt)
      year, month, day = dt.tm_year, dt.tm_mon, dt.tm_mday
      return 'http://www.itsbacktothefutureday.com/images/{year}/{month:02d}/{day:02d}.jpg'.format(year=year, month=month, day=day)
  
  
  def on_message(msg, server):
      text = msg.get("text", "")
      match = re.findall(r"!backtothefuture (.*)", text)
      if match:
          return backtothefutureday(match[0])
  
subject: Fix some bugs with date parsing, as well as zero pad month and day in URL