old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  
  import argparse
  import subprocess
  
  import pwndbg.commands
  
  parser = argparse.ArgumentParser(description='Launches radare2',
                                   epilog="Example: r2 -- -S -AA")
  parser.add_argument('--no-seek', action='store_true',
                      help='Do not seek to current pc')
  parser.add_argument('arguments', nargs='*', type=str,
                      help='Arguments to pass to radare')
  
  
  @pwndbg.commands.ArgparsedCommand(parser)
  @pwndbg.commands.OnlyWithFile
  def r2(arguments, no_seek=False):
      filename = pwndbg.file.get_file(pwndbg.proc.exe)
  
      # Build up the command line to run
      cmd = ['radare2', filename]
      if not no_seek and pwndbg.proc.alive:
          cmd.extend(['-s', hex(pwndbg.regs.pc)])
      cmd += arguments
  
      try:
          subprocess.call(cmd)
      except Exception:
          print("Could not run radare2. Please ensure it's installed and in $PATH.")
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  
  import argparse
  import subprocess
  
  import pwndbg.commands
  
  parser = argparse.ArgumentParser(description='Launches radare2',
                                   epilog="Example: r2 -- -S -AA")
  parser.add_argument('--no-seek', action='store_true',
                      help='Do not seek to current pc')
  parser.add_argument('arguments', nargs='*', type=str,
                      help='Arguments to pass to radare')
  
  
  @pwndbg.commands.ArgparsedCommand(parser)
  @pwndbg.commands.OnlyWithFile
  def r2(arguments, no_seek=False):
      filename = pwndbg.file.get_file(pwndbg.proc.exe)
  
      # Build up the command line to run
      cmd = ['radare2', filename]
      addr = pwndbg.regs.pc
      if pwndbg.elf.get_elf_info(filename).is_pie:
          addr -= pwndbg.elf.exe().address
      if not no_seek and pwndbg.proc.alive:
          cmd.extend(['-s', hex(addr)])
      cmd += arguments
  
      try:
          subprocess.call(cmd)
      except Exception:
          print("Could not run radare2. Please ensure it's installed and in $PATH.")
  
subject: add support of PIE for r2 (#567)