mkdir: created directory '_tmp/doc/ysh-tour'
_tmp/doc/ysh-tour -> (doctools/cmark) -> _release/VERSION/doc/ysh-tour.html
~/oil/_tmp/code-blocks/doc ~/oil
hello world
one
two
hello world
hello world
90
positive
[0] item 90
[1] item 7
/tmp
/home/uke/oil/_tmp/code-blocks/doc
{
  "name": "bob",
  "age": 42
}
(List)  ['str', 42]
hi
Traceback (most recent call last):
  File "/home/uke/oil/bin/oils_for_unix.py", line 202, in <module>
    sys.exit(main(sys.argv))
  File "/home/uke/oil/bin/oils_for_unix.py", line 171, in main
    return AppBundleMain(argv)
  File "/home/uke/oil/bin/oils_for_unix.py", line 137, in AppBundleMain
    return shell.Main('ysh', arg_r, environ, login_shell, loader, readline)
  File "/home/uke/oil/core/shell.py", line 1266, in Main
    cmd_flags=cmd_eval.IsMainProgram)
  File "/home/uke/oil/core/main_loop.py", line 336, in Batch
    was_parsed, status = Batch2(cmd_ev, c_parser, errfmt, cmd_flags=cmd_flags)
  File "/home/uke/oil/core/main_loop.py", line 401, in Batch2
    is_return, is_fatal = cmd_ev.ExecuteAndCatch(node, cmd_flags)
  File "/home/uke/oil/osh/cmd_eval.py", line 2285, in ExecuteAndCatch
    status = self._Execute(node)
  File "/home/uke/oil/osh/cmd_eval.py", line 2084, in _Execute
    status = self._Dispatch(node, cmd_st)
  File "/home/uke/oil/osh/cmd_eval.py", line 1811, in _Dispatch
    status = self._DoSimple(node, cmd_st)
  File "/home/uke/oil/osh/cmd_eval.py", line 1054, in _DoSimple
    allow_assign=True)
  File "/home/uke/oil/osh/word_eval.py", line 2479, in EvalWordSequence2
    allow_assign)
  File "/home/uke/oil/osh/word_eval.py", line 2440, in SimpleEvalWordSequence2
    self._EvalWordToParts(w, part_vals, 0)  # not quoted
  File "/home/uke/oil/osh/word_eval.py", line 1983, in _EvalWordToParts
    self._EvalWordPart(p, word_part_vals, eval_flags)
  File "/home/uke/oil/osh/word_eval.py", line 1867, in _EvalWordPart
    self._EvalDoubleQuoted(part.parts, part_vals)
  File "/home/uke/oil/osh/word_eval.py", line 1388, in _EvalDoubleQuoted
    self._EvalWordPart(p, part_vals, QUOTED)
  File "/home/uke/oil/osh/word_eval.py", line 1875, in _EvalWordPart
    quoted)  # type: part_value_t
  File "/home/uke/oil/osh/word_eval.py", line 2623, in _EvalCommandSub
    stdout_str = self.shell_ex.RunCommandSub(cs_part)
  File "/home/uke/oil/core/executor.py", line 693, in RunCommandSub
    status, stdout_str, stderr_str = self.CaptureStdout(node)
  File "/home/uke/oil/core/executor.py", line 621, in CaptureStdout
    fds = pyos.WaitForInputs([r, r2])
  File "/home/uke/oil/core/pyos.py", line 288, in WaitForInputs
    r, w, exc = select.select(fd, [], [fd])
TypeError: argument must be an int, or have a fileno() method