Python curses.setupterm() Examples

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 

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 

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 

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 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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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):
        "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, 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 _stderr_supports_color():
    color = False
    if curses and hasattr(sys.stderr, 'isatty') and sys.stderr.isatty():
        try:
            curses.setupterm()
            if curses.tigetnum("colors") > 0:
                color = True
        except Exception:
            pass
    return color 

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 has_colours(stream):
    if not (hasattr(stream, "isatty") and stream.isatty()):
        return False
    try:
        import curses
        curses.setupterm()
        return curses.tigetnum("colors") > 2
    except:
        return False 

def _stderr_supports_color():
    color = False
    if curses and hasattr(sys.stderr, 'isatty') and sys.stderr.isatty():
        try:
            curses.setupterm()
            if curses.tigetnum("colors") > 0:
                color = True
        except Exception:
            pass
    return color 

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 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 enable_pretty_logging(options=options):
    """Turns on formatted logging output as configured.

    This is called automatically by `parse_command_line`.
    """
    root_logger = logging.getLogger()
    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))
        root_logger.addHandler(channel)

    if (options.log_to_stderr or
        (options.log_to_stderr is None and not root_logger.handlers)):
        # 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 Exception:
                pass
        channel = logging.StreamHandler()
        channel.setFormatter(_LogFormatter(color=color))
        root_logger.addHandler(channel) 

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) 

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

def _stderr_supports_color():
    color = False
    if curses and hasattr(sys.stderr, 'isatty') and sys.stderr.isatty():
        try:
            curses.setupterm()
            if curses.tigetnum("colors") > 0:
                color = True
        except Exception:
            pass
    return color