'opyc dis' accepts a .py path too.

It will compile it first and then disassemble it.

opy/opy_main.py

@@ -139,7 +139,7 @@ def OpyCommandMain(argv):
    raise args.UsageError('opy: Missing required subcommand.')

  if action in (
      'parse', 'compile', 'cfg', 'compile-ovm', 'eval', 'repl', 'run',
      'parse', 'compile', 'dis', 'cfg', 'compile-ovm', 'eval', 'repl', 'run',
      'run-ovm'):
    loader = util.GetResourceLoader()
    f = loader.open(PICKLE_REL_PATH)
@@ -278,19 +278,25 @@ def OpyCommandMain(argv):
      print(eval(co))

  elif action == 'dis':
    pyc_path = argv[1]
    path = argv[1]
    try:
      report_path = argv[2]
      report_f = open(report_path, 'w')
    except IndexError:
      report_f = sys.stdout

    with open(pyc_path, 'rb') as f:
      # TODO: Make this a flag.
      #v = dis_tool.Visitor(dis_bytecode=False)
      v = dis_tool.Visitor()
      #v = dis_tool.Visitor(co_name='_parse')
      v.Visit(f)
    v = dis_tool.Visitor()

    if path.endswith('.py'):
      with open(path) as f:
        co = skeleton.Compile(f, path, gr, 'file_input', 'exec')

      log("Compiled to %d bytes of bytecode", len(co.co_code))
      v.show_code(co)

    else:  # assume pyc_path
      with open(path, 'rb') as f:
        v.Visit(f)

    v.Report(report_f)