Python curses.tigetstr() Examples

def setterm(self, term):
        "Set the curses structures for this terminal"
        log.debug("Setting termtype to %s" % (term, ))
        curses.setupterm(term) # This will raise if the termtype is not supported
        self.TERM = term
        self.ESCSEQ = {}
        for k in self.KEYS.keys():
            str = curses.tigetstr(curses.has_key._capability_names[k])
            if str:
                self.ESCSEQ[str] = k
        # Create a copy to prevent altering the class
        self.CODES = self.CODES.copy()
        self.CODES['DEOL'] = curses.tigetstr('el')
        self.CODES['DEL'] = curses.tigetstr('dch1')
        self.CODES['INS'] = curses.tigetstr('ich1')
        self.CODES['CSRLEFT'] = curses.tigetstr('cub1')
        self.CODES['CSRRIGHT'] = curses.tigetstr('cuf1') 

def __init__(self):
        self.data = []
        self.has_ipython = True
        self.display_type = "multi"
        self.global_data_size = 0
        self.global_val_data_size = 0
        self.snapped = False

        global CURSES_SUPPORTED
        if CURSES_SUPPORTED:
            try:
                curses.setupterm()
                sys.stdout.write(curses.tigetstr('civis').decode())
            except Exception:
                CURSES_SUPPORTED = False
        
        try:
            clear_output
        except NameError:
            self.has_ipython = False 

def setterm(self, term):
    # Dummy file for the purpose of tests.
    with open('/dev/null', 'w') as f:
      curses.setupterm(
          term, f.fileno())  # This will raise if the termtype is not supported
      self.TERM = term
      self.ESCSEQ = {}
      for k in self.KEYS.keys():
        str_ = curses.tigetstr(curses.has_key._capability_names[k])
        if str_:
          self.ESCSEQ[str_] = k
      self.CODES['DEOL'] = curses.tigetstr('el')
      self.CODES['DEL'] = curses.tigetstr('dch1')
      self.CODES['INS'] = curses.tigetstr('ich1')
      self.CODES['CSRLEFT'] = curses.tigetstr('cub1')
      self.CODES['CSRRIGHT'] = curses.tigetstr('cuf1') 

def resolve_capability(term, attr):
    """
    Resolve a raw terminal capability using :func:`tigetstr`.

    :arg Terminal term: :class:`~.Terminal` instance.
    :arg str attr: terminal capability name.
    :returns: string of the given terminal capability named by ``attr``,
       which may be empty (u'') if not found or not supported by the
       given :attr:`~.Terminal.kind`.
    :rtype: str
    """
    # Decode sequences as latin1, as they are always 8-bit bytes, so when
    # b'\xff' is returned, this must be decoded to u'\xff'.
    if not term.does_styling:
        return u''
    val = curses.tigetstr(term._sugar.get(attr, attr))
    return u'' if val is None else val.decode('latin1') 

def __init__(self, use_colors):
		logging.Handler.__init__(self)
		self.use_colors = use_colors

		# Initialize environment
		curses.setupterm()

		# Get the foreground color attribute for this environment
		self.fcap = curses.tigetstr('setaf')

		#Get the normal attribute
		self.COLOR_NORMAL = curses.tigetstr('sgr0')

		# Get + Save the color sequences
		self.COLOR_INFO = curses.tparm(self.fcap, curses.COLOR_GREEN)
		self.COLOR_ERROR = curses.tparm(self.fcap, curses.COLOR_RED)
		self.COLOR_WARNING = curses.tparm(self.fcap, curses.COLOR_YELLOW)
		self.COLOR_DEBUG = curses.tparm(self.fcap, curses.COLOR_BLUE) 

def __missing__(self, key):
        # pylint: disable=unused-argument,no-self-use
        if not self.has_colors:
            return ''

        try:
            value = curses.tigetstr(self.attrs[key])
        except KeyError:
            try:
                value = curses.tparm(
                    curses.tigetstr('setaf'), self.colors.index(key))
            except ValueError:
                return ''

        value = value.decode()
        self[key] = value
        return value 

def __init__(self, stream, charset=None):
        # our Enterprise logic follows
        self.stream_isatty = stream.isatty()
        if charset is None:
            charset = ENTERPRISE_CHARSET if self.stream_isatty else '.'

        super(QubesSpinnerEnterpriseEdition, self).__init__(stream, charset)

        if self.stream_isatty:
            try:
                curses.setupterm()
                self.has_terminfo = True
                self.cub1 = curses.tigetstr('cub1').decode()
            except (curses.error, io.UnsupportedOperation):
                # we are in very non-Enterprise environment
                self.has_terminfo = False
        else:
            self.cub1 = '' 

def resolve_capability(term, attr):
    """Return a Unicode string for the terminal capability ``attr``,
    or an empty string if not found, or if terminal is without styling
    capabilities.
    """
    # Decode sequences as latin1, as they are always 8-bit bytes, so when
    # b'\xff' is returned, this must be decoded to u'\xff'.
    if not term.does_styling:
        return u''
    val = curses.tigetstr(term._sugar.get(attr, attr))
    return u'' if val is None else val.decode('latin1') 

def terminal_has_colors():
    if sys.platform=='cygwin' and 'USE_COLOR' not in os.environ:
        # Avoid importing curses that causes illegal operation
        # with a message:
        #  PYTHON2 caused an invalid page fault in
        #  module CYGNURSES7.DLL as 015f:18bbfc28
        # Details: Python 2.3.3 [GCC 3.3.1 (cygming special)]
        #          ssh to Win32 machine from debian
        #          curses.version is 2.2
        #          CYGWIN_98-4.10, release 1.5.7(0.109/3/2))
        return 0
    if hasattr(sys.stdout, 'isatty') and sys.stdout.isatty():
        try:
            import curses
            curses.setupterm()
            if (curses.tigetnum("colors") >= 0
                and curses.tigetnum("pairs") >= 0
                and ((curses.tigetstr("setf") is not None
                      and curses.tigetstr("setb") is not None)
                     or (curses.tigetstr("setaf") is not None
                         and curses.tigetstr("setab") is not None)
                     or curses.tigetstr("scp") is not None)):
                return 1
        except Exception:
            pass
    return 0 

def __init__(self, color=True, fmt=DEFAULT_FORMAT, datefmt=DEFAULT_DATE_FORMAT,
                 colors=DEFAULT_COLORS, precision=3):
        r"""
        :arg bool color: Enables color support.
        :arg string fmt: Log message format.
          It will be applied to the attributes dict of log records. The
          text between ``%(color)s`` and ``%(end_color)s`` will be colored
          depending on the level if color support is on.
        :arg dict colors: color mappings from logging level to terminal color
          code
        :arg string datefmt: Datetime format.
          Used for formatting ``(asctime)`` placeholder in ``prefix_fmt``.
        .. versionchanged:: 3.2
           Added ``fmt`` and ``datefmt`` arguments.
        """
        super().__init__()
        self.default_time_format = datefmt
        self.precision = precision
        self.default_msec_format = ''
        self._fmt = fmt

        self._colors = {}
        if color and _stderr_supports_color():
            fg_color = (curses.tigetstr('setaf') or
                        curses.tigetstr('setf') or '')

            for levelno, code in colors.items():
                self._colors[levelno] = curses.tparm(fg_color, code).decode()
            self._normal = curses.tigetstr('sgr0').decode()
        else:
            self._normal = '' 

def csi(self, capname, *args):
        """Return the escape sequence for the selected Control Sequence."""
        value = curses.tigetstr(capname)
        if value is None:
            return b''
        else:
            return curses.tparm(value, *args) 

def _tigetstr(cap_name):
        """Rewrites string capabilities to remove "delays" which are not
        required for modern terminals"""
        # String capabilities can include "delays" of the form "$<2>".
        # For any modern terminal, we should be able to just ignore
        # these, so strip them out.
        import curses
        cap = curses.tigetstr(cap_name) or b''
        cap = cap.decode("latin-1")
        return re.sub(r'\$<\d+>[/*]?', '', cap) 

def __init__(self, *args, **kwargs):
        logging.Formatter.__init__(self, *args, **kwargs)
        self._coloured = COLOURED and _stderr_supports_color()
        if self._coloured:
            curses.setupterm()
            # The curses module has some str/bytes confusion in
            # python3.  Until version 3.2.3, most methods return
            # bytes, but only accept strings.  In addition, we want to
            # output these strings with the logging module, which
            # works with unicode strings.  The explicit calls to
            # unicode() below are harmless in python2 but will do the
            # right conversion in python 3.
            fg_color = \
                curses.tigetstr("setaf") or curses.tigetstr("setf") or ""
            if (3, 0) < sys.version_info < (3, 2, 3):
                fg_color = unicode(fg_color, "ascii")
            self._colors = {
                # blues
                logging.DEBUG: unicode(curses.tparm(fg_color, 4), "ascii"),
                # green
                logging.INFO: unicode(curses.tparm(fg_color, 2), "ascii"),
                # yellow
                logging.WARNING: unicode(curses.tparm(fg_color, 3), "ascii"),
                # red
                logging.ERROR: unicode(curses.tparm(fg_color, 1), "ascii")
            }
            self._normal = unicode(curses.tigetstr("sgr0"), "ascii") 

def terminal_has_colors():
    if sys.platform=='cygwin' and 'USE_COLOR' not in os.environ:
        # Avoid importing curses that causes illegal operation
        # with a message:
        #  PYTHON2 caused an invalid page fault in
        #  module CYGNURSES7.DLL as 015f:18bbfc28
        # Details: Python 2.3.3 [GCC 3.3.1 (cygming special)]
        #          ssh to Win32 machine from debian
        #          curses.version is 2.2
        #          CYGWIN_98-4.10, release 1.5.7(0.109/3/2))
        return 0
    if hasattr(sys.stdout, 'isatty') and sys.stdout.isatty():
        try:
            import curses
            curses.setupterm()
            if (curses.tigetnum("colors") >= 0
                and curses.tigetnum("pairs") >= 0
                and ((curses.tigetstr("setf") is not None
                      and curses.tigetstr("setb") is not None)
                     or (curses.tigetstr("setaf") is not None
                         and curses.tigetstr("setab") is not None)
                     or curses.tigetstr("scp") is not None)):
                return 1
        except Exception:
            pass
    return 0 

def hide(self):
        if self.stream_isatty:
            hideseq = '\r' + ' ' * self.hidelen + '\r'
            if self.has_terminfo:
                hideseq_l = (curses.tigetstr('cr'), curses.tigetstr('clr_eol'))
                if all(seq is not None for seq in hideseq_l):
                    hideseq = ''.join(seq.decode() for seq in hideseq_l)
        else:
            hideseq = '\n'

        self.stream.write(hideseq)
        self.stream.flush() 

def _tigetstr(self, cap_name):
        # String capabilities can include "delays" of the form "$<2>".
        # For any modern terminal, we should be able to just ignore
        # these, so strip them out.
        import curses
        cap = curses.tigetstr(cap_name) or ''
        return re.sub(r'\$<\d+>[/*]?', '', cap) 

def terminal_has_colors():
    if sys.platform=='cygwin' and 'USE_COLOR' not in os.environ:
        # Avoid importing curses that causes illegal operation
        # with a message:
        #  PYTHON2 caused an invalid page fault in
        #  module CYGNURSES7.DLL as 015f:18bbfc28
        # Details: Python 2.3.3 [GCC 3.3.1 (cygming special)]
        #          ssh to Win32 machine from debian
        #          curses.version is 2.2
        #          CYGWIN_98-4.10, release 1.5.7(0.109/3/2))
        return 0
    if hasattr(sys.stdout, 'isatty') and sys.stdout.isatty():
        try:
            import curses
            curses.setupterm()
            if (curses.tigetnum("colors") >= 0
                and curses.tigetnum("pairs") >= 0
                and ((curses.tigetstr("setf") is not None
                      and curses.tigetstr("setb") is not None)
                     or (curses.tigetstr("setaf") is not None
                         and curses.tigetstr("setab") is not None)
                     or curses.tigetstr("scp") is not None)):
                return 1
        except Exception:
            pass
    return 0 

def unicode_parm(cap, *parms):
    """Return the result of ``tparm(tigetstr())`` except as Unicode."""
    cap = curses.tigetstr(cap)
    if cap:
        val = curses.tparm(cap, *parms)
        if val:
            return val.decode('latin1')
    return u'' 

def unicode_cap(cap):
    """Return the result of ``tigetstr`` except as Unicode."""
    val = curses.tigetstr(cap)
    if val:
        return val.decode('latin1')
    return u'' 

def __init__(self, color=True, fmt=DEFAULT_FORMAT,
                 datefmt=DEFAULT_DATE_FORMAT, colors=DEFAULT_COLORS):
        r"""
        :arg bool color: Enables color support.
        :arg string fmt: Log message format.
          It will be applied to the attributes dict of log records. The
          text between ``%(color)s`` and ``%(end_color)s`` will be colored
          depending on the level if color support is on.
        :arg dict colors: color mappings from logging level to terminal color
          code
        :arg string datefmt: Datetime format.
          Used for formatting ``(asctime)`` placeholder in ``prefix_fmt``.

        .. versionchanged:: 3.2

           Added ``fmt`` and ``datefmt`` arguments.
        """
        logging.Formatter.__init__(self, datefmt=datefmt)
        self._fmt = fmt

        self._colors = {}
        if color and _stderr_supports_color():
            # The curses module has some str/bytes confusion in
            # python3.  Until version 3.2.3, most methods return
            # bytes, but only accept strings.  In addition, we want to
            # output these strings with the logging module, which
            # works with unicode strings.  The explicit calls to
            # unicode() below are harmless in python2 but will do the
            # right conversion in python 3.
            fg_color = (curses.tigetstr("setaf") or
                        curses.tigetstr("setf") or "")
            if (3, 0) < sys.version_info < (3, 2, 3):
                fg_color = unicode_type(fg_color, "ascii")

            for levelno, code in colors.items():
                self._colors[levelno] = unicode_type(curses.tparm(fg_color, code), "ascii")
            self._normal = unicode_type(curses.tigetstr("sgr0"), "ascii")
        else:
            self._normal = '' 

def terminal_has_colors():
    if sys.platform=='cygwin' and 'USE_COLOR' not in os.environ:
        # Avoid importing curses that causes illegal operation
        # with a message:
        #  PYTHON2 caused an invalid page fault in
        #  module CYGNURSES7.DLL as 015f:18bbfc28
        # Details: Python 2.3.3 [GCC 3.3.1 (cygming special)]
        #          ssh to Win32 machine from debian
        #          curses.version is 2.2
        #          CYGWIN_98-4.10, release 1.5.7(0.109/3/2))
        return 0
    if hasattr(sys.stdout, 'isatty') and sys.stdout.isatty():
        try:
            import curses
            curses.setupterm()
            if (curses.tigetnum("colors") >= 0
                and curses.tigetnum("pairs") >= 0
                and ((curses.tigetstr("setf") is not None
                      and curses.tigetstr("setb") is not None)
                     or (curses.tigetstr("setaf") is not None
                         and curses.tigetstr("setab") is not None)
                     or curses.tigetstr("scp") is not None)):
                return 1
        except Exception:
            pass
    return 0 

def clear_screen():
    import curses, sys
    curses.setupterm()
    sys.stdout.write(curses.tigetstr("clear"))
    sys.stdout.flush() 

def _resolve_capability(self, atom):
        """Return a terminal code for a capname or a sugary name, or an empty
        Unicode.

        The return value is always Unicode, because otherwise it is clumsy
        (especially in Python 3) to concatenate with real (Unicode) strings.

        """
        code = tigetstr(self._sugar.get(atom, atom))
        if code:
            # See the comment in ParametrizingString for why this is latin1.
            return code.decode('latin1')
        return u'' 

def __init__(self, color, *args, **kwargs):
        logging.Formatter.__init__(self, *args, **kwargs)
        self._color = color
        if color:
            fg_color = curses.tigetstr("setaf") or curses.tigetstr("setf") or ""
            self._colors = {
                logging.DEBUG: curses.tparm(fg_color, 4), # Blue
                logging.INFO: curses.tparm(fg_color, 2), # Green
                logging.WARNING: curses.tparm(fg_color, 3), # Yellow
                logging.ERROR: curses.tparm(fg_color, 1), # Red
            }
            self._normal = curses.tigetstr("sgr0") 

def __init__(self, *args, **kwargs):
        logging.Formatter.__init__(self, *args, **kwargs)
        self._coloured = COLOURED and _stderr_supports_color()
        if self._coloured:
            curses.setupterm()
            # The curses module has some str/bytes confusion in
            # python3.  Until version 3.2.3, most methods return
            # bytes, but only accept strings.  In addition, we want to
            # output these strings with the logging module, which
            # works with unicode strings.  The explicit calls to
            # unicode() below are harmless in python2 but will do the
            # right conversion in python 3.
            fg_color = (curses.tigetstr("setaf") or curses.tigetstr("setf") or
                        "")
            if (3, 0) < sys.version_info < (3, 2, 3):
                fg_color = unicode(fg_color, "ascii")
            self._colors = {
                # blues
                logging.DEBUG: unicode(curses.tparm(fg_color, 4), "ascii"),
                # green
                logging.INFO: unicode(curses.tparm(fg_color, 2), "ascii"),
                # yellow
                logging.WARNING: unicode(curses.tparm(fg_color, 3), "ascii"),
                # red
                logging.ERROR: unicode(curses.tparm(fg_color, 1), "ascii")
            }
            self._normal = unicode(curses.tigetstr("sgr0"), "ascii") 

def terminal_has_colors():
    if sys.platform=='cygwin' and 'USE_COLOR' not in os.environ:
        # Avoid importing curses that causes illegal operation
        # with a message:
        #  PYTHON2 caused an invalid page fault in
        #  module CYGNURSES7.DLL as 015f:18bbfc28
        # Details: Python 2.3.3 [GCC 3.3.1 (cygming special)]
        #          ssh to Win32 machine from debian
        #          curses.version is 2.2
        #          CYGWIN_98-4.10, release 1.5.7(0.109/3/2))
        return 0
    if hasattr(sys.stdout, 'isatty') and sys.stdout.isatty():
        try:
            import curses
            curses.setupterm()
            if (curses.tigetnum("colors") >= 0
                and curses.tigetnum("pairs") >= 0
                and ((curses.tigetstr("setf") is not None
                      and curses.tigetstr("setb") is not None)
                     or (curses.tigetstr("setaf") is not None
                         and curses.tigetstr("setab") is not None)
                     or curses.tigetstr("scp") is not None)):
                return 1
        except Exception:
            pass
    return 0 

def __init__(self, color, *args, **kwargs):
        logging.Formatter.__init__(self, *args, **kwargs)
        self._color = color
        if color:
            # The curses module has some str/bytes confusion in
            # python3.  Until version 3.2.3, most methods return
            # bytes, but only accept strings.  In addition, we want to
            # output these strings with the logging module, which
            # works with unicode strings.  The explicit calls to
            # unicode() below are harmless in python2 but will do the
            # right conversion in python 3.
            fg_color = (curses.tigetstr("setaf") or
                        curses.tigetstr("setf") or "")
            if (3, 0) < sys.version_info < (3, 2, 3):
                fg_color = unicode(fg_color, "ascii")
            self._colors = {
                logging.DEBUG: unicode(curses.tparm(fg_color, 4),  # Blue
                                       "ascii"),
                logging.INFO: unicode(curses.tparm(fg_color, 2),  # Green
                                      "ascii"),
                logging.WARNING: unicode(curses.tparm(fg_color, 3),  # Yellow
                                         "ascii"),
                logging.ERROR: unicode(curses.tparm(fg_color, 1),  # Red
                                       "ascii"),
            }
            self._normal = unicode(curses.tigetstr("sgr0"), "ascii") 

def get_hex_chars(key_str):
    if (key_str.startswith("0x")):
        out = bytes.fromhex(key_str[2:])
    else:
        out = curses.tigetstr(key_str)
    return out.decode('utf-8') 

def __init__(self, color=True, datefmt=None):
        r"""
        :arg bool color: Enables color support.
        :arg string fmt: Log message format.
        It will be applied to the attributes dict of log records. The
        text between ``%(color)s`` and ``%(end_color)s`` will be colored
        depending on the level if color support is on.
        :arg dict colors: color mappings from logging level to terminal color
        code
        :arg string datefmt: Datetime format.
        Used for formatting ``(asctime)`` placeholder in ``prefix_fmt``.
        .. versionchanged:: 3.2
        Added ``fmt`` and ``datefmt`` arguments.
        """
        logging.Formatter.__init__(self, datefmt=datefmt)
        self._colors = {}
        if color and _stderr_supports_color():
            # The curses module has some str/bytes confusion in
            # python3. Until version 3.2.3, most methods return
            # bytes, but only accept strings. In addition, we want to
            # output these strings with the logging module, which
            # works with unicode strings. The explicit calls to
            # unicode() below are harmless in python2 but will do the
            # right conversion in python 3.
            fg_color = (curses.tigetstr("setaf") or
                        curses.tigetstr("setf") or "")
            if (3, 0) < sys.version_info < (3, 2, 3):
                fg_color = str(fg_color, "ascii")

            for levelno, code in self.DEFAULT_COLORS.items():
                self._colors[levelno] = str(curses.tparm(fg_color, code), "ascii")
            self._normal = str(curses.tigetstr("sgr0"), "ascii")

            scr = curses.initscr()
            self.termwidth = scr.getmaxyx()[1]
            curses.endwin()
        else:
            self._normal = ''
            # Default width is usually 80, but too wide is worse than too narrow
            self.termwidth = 70 

def terminal_has_colors():
    if sys.platform=='cygwin' and 'USE_COLOR' not in os.environ:
        # Avoid importing curses that causes illegal operation
        # with a message:
        #  PYTHON2 caused an invalid page fault in
        #  module CYGNURSES7.DLL as 015f:18bbfc28
        # Details: Python 2.3.3 [GCC 3.3.1 (cygming special)]
        #          ssh to Win32 machine from debian
        #          curses.version is 2.2
        #          CYGWIN_98-4.10, release 1.5.7(0.109/3/2))
        return 0
    if hasattr(sys.stdout, 'isatty') and sys.stdout.isatty():
        try:
            import curses
            curses.setupterm()
            if (curses.tigetnum("colors") >= 0
                and curses.tigetnum("pairs") >= 0
                and ((curses.tigetstr("setf") is not None
                      and curses.tigetstr("setb") is not None)
                     or (curses.tigetstr("setaf") is not None
                         and curses.tigetstr("setab") is not None)
                     or curses.tigetstr("scp") is not None)):
                return 1
        except Exception:
            pass
    return 0