Switch trace_inputs.py and isolate.py to subcommand.py.

tests/isolate_smoke_test.py

Index: tests/isolate_smoke_test.py
diff --git a/tests/isolate_smoke_test.py b/tests/isolate_smoke_test.py
index c455c5b6f6d8e11e15307bded6f1eefd8dbd0603..7386229af1e8f8f27a14e90113d2e7e1c811dc38 100755
--- a/tests/isolate_smoke_test.py
+++ b/tests/isolate_smoke_test.py
@@ -403,10 +403,11 @@ class Isolate(unittest.TestCase):
         cwd=ROOT_DIR)
     out = p.communicate()[0].splitlines()
     self.assertEqual(0, p.returncode)
-    out = out[out.index('') + 1:]
+    out = out[out.index('Commands are:') + 1:]
     out = out[:out.index('')]
-    modes = [re.match(r'^  (\w+) .+', l) for l in out]
-    modes = tuple(m.group(1) for m in modes if m)
+    regexp = '^  (?:\x1b\\[\\d\\dm)(\\w+)\s*(:?\x1b\\[\\d\\dm) .+'

[Vadim Sh., 2013/08/19 17:54:02]

err.... what is that? :) looks like write-only regexp. Colors, I guess?..
Also, what happens if this test is run on Windows?

[M-A Ruel, 2013/08/19 20:05:03]

ANSI escape code. ESC[\d\dm
http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
Yes the test pass even on Windows, I verified. How colorama works if that it
looks at stdout and look for ANSI color codes, when it finds one, it calls the
corresponding Win32 API.

+    modes = [re.match(regexp, l) for l in out]
+    modes = [m.group(1) for m in modes if m]
     self.assertEqual(sorted(EXPECTED_MODES), sorted(modes))
 
   def test_modes(self):