Fixed #6223 -- When determining if terminal supports color, don't call...

from django.utils import termcolors

def supports_color():

    """

    Returns True if the running system's terminal supports color, and False

    otherwise.

    """

    unsupported_platform = (sys.platform in ('win32', 'Pocket PC')

                            or sys.platform.startswith('java'))

    # isatty is not always implemented, #6223.

    is_a_tty = hasattr(sys.stdout, 'isatty') and sys.stdout.isatty()

    if unsupported_platform or not is_a_tty:

        return False

    return True

def color_style():

    """Returns a Style object with the Django color scheme."""

    if (sys.platform == 'win32' or sys.platform == 'Pocket PC'

        or sys.platform.startswith('java') or not sys.stdout.isatty()):

    if not supports_color():

        return no_style()

    class dummy: pass

    style = dummy()