_term.py 文件源码

def __init__(self):
        """ Initialization """
        dict.__init__(self, {
            'NORMAL': '',
            'BOLD': '',
            'ERASE': '\n',
            'RED': '',
            'YELLOW': '',
            'GREEN': '',
        })
        try:
            import curses as _curses
        except ImportError:
            # fixup if a submodule of curses failed.
            if 'curses' in _sys.modules:
                del _sys.modules['curses']
        else:
            try:
                _curses.setupterm()
            except (TypeError, _curses.error):
                pass
            else:
                try:
                    _curses.tigetstr('sgr0')
                except TypeError:  # pypy3
                    # pylint: disable = invalid-name
                    bc = lambda val: val.encode('ascii')
                else:
                    bc = lambda val: val  # pylint: disable = invalid-name

                def make_color(color):
                    """ Make color control string """
                    seq = _curses.tigetstr(bc('setaf'))
                    if seq is not None:
                        seq = _curses.tparm(seq, color).decode('ascii')
                    return seq

                self['NORMAL'] = _curses.tigetstr(bc('sgr0')).decode('ascii')
                self['BOLD'] = _curses.tigetstr(bc('bold')).decode('ascii')

                erase = _curses.tigetstr(bc('el1')).decode('ascii')
                if erase is not None:
                    self['ERASE'] = erase + \
                        _curses.tigetstr(bc('cr')).decode('ascii')

                self['RED'] = make_color(_curses.COLOR_RED)
                self['YELLOW'] = make_color(_curses.COLOR_YELLOW)
                self['GREEN'] = make_color(_curses.COLOR_GREEN)