.......
----------------------------------------------------------------------
Ran 7 tests in 0.002s

OK
<Mem
  -- 0 --
  UID (cell val:(Str s:1000) exported:False readonly:False)
  IFS (cell val:(Str s:' \t\n') exported:False readonly:False)
  OPTIND (cell val:(Str s:1) exported:False readonly:False)
  PWD (cell val:(Str s:/home/andy/git/oilshell/oil) exported:False readonly:False)
  U (cell val:(Undef) exported:True readonly:False)
  EUID (cell val:(Str s:1000) exported:False readonly:False)
>

<Mem
  -- 0 --
  UID (cell val:(Str s:1000) exported:False readonly:False)
  IFS (cell val:(Str s:' \t\n') exported:False readonly:False)
  OPTIND (cell val:(Str s:1) exported:False readonly:False)
  PWD (cell val:(Str s:/home/andy/git/oilshell/oil) exported:False readonly:False)
  U (cell val:(Str s:u) exported:True readonly:False)
  EUID (cell val:(Str s:1000) exported:False readonly:False)
>

(Undef)
(Undef)
<Mem
  -- 0 --
  OPTIND (cell val:(Str s:1) exported:False readonly:False)
  PWD (cell val:(Str s:/home/andy/git/oilshell/oil) exported:False readonly:False)
  EUID (cell val:(Str s:1000) exported:False readonly:False)
  UID (cell val:(Str s:1000) exported:False readonly:False)
  IFS (cell val:(Str s:' \t\n') exported:False readonly:False)
>

<Mem
  -- 0 --
  UID (cell val:(Str s:1000) exported:False readonly:False)
  IFS (cell val:(Str s:' \t\n') exported:False readonly:False)
  OPTIND (cell val:(Str s:1) exported:False readonly:False)
  PYTHONPATH (cell val:(Str s:/lib) exported:True readonly:False)
  COMPREPLY (cell val:(StrArray strs:[1 2 3]) exported:True readonly:False)
  PWD (cell val:(Str s:/home/andy/git/oilshell/oil) exported:False readonly:False)
  r (cell val:(Str s:1) exported:False readonly:True)
  EUID (cell val:(Str s:1000) exported:False readonly:False)
  g2 (cell val:(Undef) exported:True readonly:False)
  myglobal (cell val:(Str s:g) exported:True readonly:True)
  -- 1 --
  x (cell val:(Str s:YYY) exported:False readonly:False)
  -- 2 --
>