Fix to run on Windows platform.

[mikanbako]

Removes pty module dependency. Because pty module is unavailable on Windows platform.

When pty module is used on Windows platform, ImportError occurs below.

Traceback (most recent call last):
  File "C:\Python27\lib\runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "C:\Python27\lib\runpy.py", line 72, in _run_code
    exec code in run_globals
  File "C:\Python27\Scripts\sphinx-autobuild.exe\__main__.py", line 5, in <modul
e>
  File "C:\Python27\lib\site-packages\sphinx_autobuild\__init__.py", line 13, in
 <module>
    import pty
  File "C:\Python27\lib\pty.py", line 11, in <module>
    import tty
  File "C:\Python27\lib\tty.py", line 5, in <module>
    from termios import *
ImportError: No module named termios 

[GaretJax]

Thanks for the contribution!

There was probably a good reason to use pty when I first wrote the code. I think it has something to do either with signals propagation or with the output formatting. I can't remember right now, but I will have to take a closer look before merging.

[mikanbako]

Thank you for reply.

I thought that pty module dependency could be removed because pty seemed to use to transfer standard output from sphinx process to sphinx-autobuild process.

Can I be of any help?

[mikanbako]

I realized a problem of this contribution. Color of output from Sphinx cannot be captured.

I will fix this contribution the below.

1. Captures standard output of Sphinx by pty module.
2. If pty module is not available, captures standard output of Sphinx by subprocess.PIPE.

[mikanbako]

I fixed this contribution. If pty module is available, uses it to capture colored text.

Please confirm.

[GaretJax]

Thanks for the research and the solution... merged!