old_contents: import vx
  
  import math
  import os
  import sys
  
  _tick_functions = []
  def _register_tick_function(f, front=False):
      if front:
          _tick_functions.insert(0, f)
      else:
          _tick_functions.append(f)
  def _tick():
      for f in _tick_functions:
          f()
  
  vx.my_vx = _tick
  vx.register_tick_function = _register_tick_function
  
  vx.files = sys.argv[1:]
  
  import utils
  import scheduler
  import keybindings
  import windows
  import prompt
  
  def _default_start():
      if len(vx.files) == 0:
          win = vx.window(vx.rows, vx.cols, 0, 0)
          win.blank()
          win.focus()
      else:
          d = math.floor(vx.rows / (len(vx.files)))
          y = 0
          for f in vx.files:
              win = vx.window(d, vx.cols, y, 0)
              win.attach_file(f)
              y += d
              win.focus()
  vx.default_start = _default_start
  
  sys.path.append(os.path.expanduser('~/.python'))
  import rc
  
new_contents: import vx
  
  import math
  import os
  import sys
  
  _tick_functions = []
  def _register_tick_function(f, front=False):
      if front:
          _tick_functions.insert(0, f)
      else:
          _tick_functions.append(f)
  def _tick():
      for f in _tick_functions:
          f()
  
  vx.my_vx = _tick
  vx.register_tick_function = _register_tick_function
  
  vx.files = sys.argv[1:]
  
  import utils
  import scheduler
  import keybindings
  import windows
  import prompt
  
  def _default_start():
      if len(vx.files) == 0:
          win = vx.window(vx.rows, vx.cols, 0, 0)
          win.blank()
          win.focus()
      else:
          d = math.floor(vx.rows / (len(vx.files)))
          y = 0
          for f in vx.files:
              win = vx.window(d, vx.cols, y, 0)
              win.attach_file(f)
              y += d
              win.focus()
  vx.default_start = _default_start
  
  sys.path.append(os.path.expanduser('~/.python'))
  try:
    import rc
  except ImportError:
    pass # just means there was no ~/.python/rc module
  
subject: Fix a crash if there is no ~/.python/rc.py