Python curses.tigetnum方法代码示例

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def supported(cls, stream=sys.stdout):
        """
        A class method that returns True if the current platform supports
        coloring terminal output using this method. Returns False otherwise.
        """
        if not stream.isatty():
            return False  # auto color only on TTYs
        try:
            import curses
        except ImportError:
            return False
        else:
            try:
                try:
                    return curses.tigetnum("colors") > 2
                except curses.error:
                    curses.setupterm()
                    return curses.tigetnum("colors") > 2
            except:
                raise
                # guess false in case of error
                return False 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def supported(cls, stream=sys.stdout):
        """
        A class method that returns True if the current platform supports
        coloring terminal output using this method. Returns False otherwise.
        """
        if not stream.isatty():
            return False  # auto color only on TTYs
        try:
            import curses
        except ImportError:
            return False
        else:
            try:
                try:
                    return curses.tigetnum("colors") > 2
                except curses.error:
                    curses.setupterm()
                    return curses.tigetnum("colors") > 2
            except Exception:
                # guess false in case of error
                return False 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def _stderr_supports_color() -> bool:
    try:
        if hasattr(sys.stderr, "isatty") and sys.stderr.isatty():
            if curses:
                curses.setupterm()
                if curses.tigetnum("colors") > 0:
                    return True
            elif colorama:
                if sys.stderr is getattr(
                    colorama.initialise, "wrapped_stderr", object()
                ):
                    return True
    except Exception:
        # Very broad exception handling because it's always better to
        # fall back to non-colored logs than to break at startup.
        pass
    return False 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def supported(cls, stream=sys.stdout):
        """Check the current platform supports coloring terminal output

        A class method that returns True if the current platform supports
        coloring terminal output using this method. Returns False otherwise.
        """
        if not stream.isatty():
            return False  # auto color only on TTYs
        try:
            import curses
        except ImportError:
            return False
        else:
            try:
                try:
                    return curses.tigetnum("colors") > 2
                except curses.error:
                    curses.setupterm()
                    return curses.tigetnum("colors") > 2
            except Exception:
                # guess false in case of error
                return False 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def supported(cls, stream=sys.stdout):
        """
        A class method that returns True if the current platform supports
        coloring terminal output using this method. Returns False otherwise.
        """
        if not stream.isatty():
            return False # auto color only on TTYs
        try:
            import curses
        except ImportError:
            return False
        else:
            try:
                try:
                    return curses.tigetnum("colors") > 2
                except curses.error:
                    curses.setupterm()
                    return curses.tigetnum("colors") > 2
            except:
                # guess false in case of error
                return False 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def number_of_colors(self):
        """
        Read-only property: number of colors supported by terminal.

        Common values are 0, 8, 16, 88, and 256.

        Most commonly, this may be used to test whether the terminal supports
        colors. Though the underlying capability returns -1 when there is no
        color support, we return 0. This lets you test more Pythonically::

            if term.number_of_colors:
                ...
        """
        # This is actually the only remotely useful numeric capability. We
        # don't name it after the underlying capability, because we deviate
        # slightly from its behavior, and we might someday wish to give direct
        # access to it.

        # trim value to 0, as tigetnum('colors') returns -1 if no support,
        # and -2 if no such capability.
        return max(0, self.does_styling and curses.tigetnum('colors') or -1) 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def __has_colors(stream):
        """
        Is tty output check
        :param object stream: input stream
        :return: bool
        """

        if not hasattr(stream, "isatty"):
            return False
        # noinspection PyUnresolvedReferences
        if not stream.isatty():
            return False  # auto color only on TTYs
        # noinspection PyBroadException
        try:
            import curses
            curses.setupterm()
            return curses.tigetnum("colors") > 2
        except Exception:
            # guess false in case of error
            return False 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def supported(stream=sys.stdout):
        """
        A method that returns True if the current platform supports
        coloring terminal output using this method. Returns False otherwise.
        """
        if not stream.isatty():
            return False  # auto color only on TTYs
        try:
            import curses
        except ImportError:
            return False
        else:
            try:
                try:
                    return curses.tigetnum("colors") > 2
                except curses.error:
                    curses.setupterm()
                    return curses.tigetnum("colors") > 2
            except Exception:
                # guess false in case of error
                return False 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def DrawLine(LineChr,LineColor,LineCount):
    """
    Function	     : Drawing of Line with various character type, color and count
    Usage of DrawLine:
        LineChr      - Character to use as line
        LineColor    - Color of the line
        LineCount    - Number of character to print. "" is print from one end to another
    Examples         : Lookup DemoDrawLine for examples
    """
 
    printd(fcolor.CDebugB + "DrawLine Function\n" + fcolor.CDebug + "       LineChr - " + str(LineChr) + "\n       " + "LineColor = " + str(LineColor) + "\n       " + "LineCount = " + str(LineCount))
    if LineColor=="":
        LineColor=fcolor.SBlack
    if LineChr=="":
        LineChr="_"
    if LineCount=="":
        curses.setupterm()
        TWidth=curses.tigetnum('cols')
        TWidth=TWidth-1
    else:
        TWidth=LineCount
    print LineColor + LineChr * TWidth 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def enable_pretty_logging():
    """Turns on formatted logging output as configured."""
    if (options.log_to_stderr or
        (options.log_to_stderr is None and not options.log_file_prefix)):
        # Set up color if we are in a tty and curses is installed
        color = False
        if curses and sys.stderr.isatty():
            try:
                curses.setupterm()
                if curses.tigetnum("colors") > 0:
                    color = True
            except:
                pass
        channel = logging.StreamHandler()
        channel.setFormatter(_LogFormatter(color=color))
        logging.getLogger().addHandler(channel)

    if options.log_file_prefix:
        channel = logging.handlers.RotatingFileHandler(
            filename=options.log_file_prefix,
            maxBytes=options.log_file_max_size,
            backupCount=options.log_file_num_backups)
        channel.setFormatter(_LogFormatter(color=False))
        logging.getLogger().addHandler(channel) 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def supported(stream=sys.stdout):
        """Method that checks if the current terminal supports coloring.

        Returns True or False.
        """
        if not stream.isatty():
            return False  # auto color only on TTYs
        try:
            import curses
        except ImportError:
            return False
        else:
            try:
                try:
                    return curses.tigetnum("colors") > 2
                except curses.error:
                    curses.setupterm()
                    return curses.tigetnum("colors") > 2
            except Exception:
                # guess false in case of error
                return False 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def supported(cls, stream=sys.stdout):
        """
        A class method that returns True if the current platform supports
        coloring terminal output using this method. Returns False otherwise.
        """
        if not stream.isatty():
            return False  # auto color only on TTYs
        try:
            import curses
        except ImportError:
            return False
        else:
            try:
                try:
                    return curses.tigetnum("colors") > 2
                except curses.error:
                    curses.setupterm()
                    return curses.tigetnum("colors") > 2
            except:
                # guess false in case of error
                return False 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def _height_and_width(self):
        """Return a tuple of (terminal height, terminal width).

        Start by trying TIOCGWINSZ (Terminal I/O-Control: Get Window Size),
        falling back to environment variables (LINES, COLUMNS), and returning
        (None, None) if those are unavailable or invalid.

        """
        # tigetnum('lines') and tigetnum('cols') update only if we call
        # setupterm() again.
        for descriptor in self._init_descriptor, sys.__stdout__:
            try:
                return struct.unpack(
                        'hhhh', ioctl(descriptor, TIOCGWINSZ, '\000' * 8))[0:2]
            except IOError:
                # when the output stream or init descriptor is not a tty, such
                # as when when stdout is piped to another program, fe. tee(1),
                # these ioctls will raise IOError
                pass
        try:
            return int(environ.get('LINES')), int(environ.get('COLUMNS'))
        except TypeError:
            return None, None 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def number_of_colors(self):
        """Return the number of colors the terminal supports.

        Common values are 0, 8, 16, 88, and 256.

        Though the underlying capability returns -1 when there is no color
        support, we return 0. This lets you test more Pythonically::

            if term.number_of_colors:
                ...

        We also return 0 if the terminal won't tell us how many colors it
        supports, which I think is rare.

        """
        # This is actually the only remotely useful numeric capability. We
        # don't name it after the underlying capability, because we deviate
        # slightly from its behavior, and we might someday wish to give direct
        # access to it.
        colors = tigetnum('colors')  # Returns -1 if no color support, -2 if no
                                     # such cap.
        #  self.__dict__['colors'] = ret  # Cache it. It's not changing.
                                          # (Doesn't work.)
        return colors if colors >= 0 else 0 

# 需要导入模块: import curses [as 别名]
# 或者: from curses import tigetnum [as 别名]
def _syntax_highlighting(self, data):
        try:
            from pygments import highlight
            from pygments.lexers import GasLexer
            from pygments.formatters import TerminalFormatter, Terminal256Formatter
            from pygments.styles import get_style_by_name
            style = get_style_by_name('colorful')
            import curses
            curses.setupterm()
            if curses.tigetnum('colors') >= 256:
                FORMATTER = Terminal256Formatter(style=style)
            else:
                FORMATTER = TerminalFormatter()
            # When pygments is available, we
            # can print the disassembled
            # instructions with syntax
            # highlighting.
            data = highlight(data, GasLexer(), FORMATTER)
        except ImportError:
            pass
        finally:
            data = data.encode()
        return data