""" Module used to describe all of the different data types """ import logging RESET_SEQ = "\033[0m" COLOR_SEQ = "\033[1;%dm" BOLD_SEQ = "\033[1m" UNDERLINE_SEQ = "\033[04m" YELLOW = '\033[93m' WHITE = '\33[37m' BLUE = '\033[34m' LIGHT_BLUE = '\033[94m' RED = '\033[91m' GREY = '\33[90m' KEYWORD_COLORS = { 'WARNING': YELLOW, 'INFO': LIGHT_BLUE, 'DEBUG': WHITE, 'CRITICAL': YELLOW, 'ERROR': RED, 'TRADE': '\33[102m\33[30m' } def formatter_message(message, use_color = True): """ Syntax highlight certain keywords """ if use_color: message = message.replace("$RESET", RESET_SEQ).replace("$BOLD", BOLD_SEQ) else: message = message.replace("$RESET", "").replace("$BOLD", "") return message def format_word(message, word, color_seq, bold=False, underline=False): """ Surround the fiven word with a sequence """ replacer = color_seq + word + RESET_SEQ if underline: replacer = UNDERLINE_SEQ + replacer if bold: replacer = BOLD_SEQ + replacer return message.replace(word, replacer) class Formatter(logging.Formatter): ''' This Formatted simply colors in the levelname i.e 'INFO', 'DEBUG' ''' def __init__(self, msg, use_color = True): logging.Formatter.__init__(self, msg) self.use_color = use_color def format(self, record): """ Format and highlight certain keywords """ levelname = record.levelname if self.use_color and levelname in KEYWORD_COLORS: levelname_color = KEYWORD_COLORS[levelname] + levelname + RESET_SEQ record.levelname = levelname_color record.name = GREY + record.name + RESET_SEQ return logging.Formatter.format(self, record) class CustomLogger(logging.Logger): ''' This adds extra logging functions such as logger.trade and also sets the logger to use the custom formatter ''' FORMAT = "[$BOLD%(name)s$RESET] [%(levelname)s] %(message)s" COLOR_FORMAT = formatter_message(FORMAT, True) TRADE = 50 def __init__(self, name, logLevel='DEBUG'): logging.Logger.__init__(self, name, logLevel) color_formatter = Formatter(self.COLOR_FORMAT) console = logging.StreamHandler() console.setFormatter(color_formatter) self.addHandler(console) logging.addLevelName(self.TRADE, "TRADE") return def set_level(self, level): logging.Logger.setLevel(self, level) def trade(self, message, *args, **kws): """ Print a syntax highlighted trade signal """ if self.isEnabledFor(self.TRADE): message = format_word(message, 'CLOSED ', YELLOW, bold=True) message = format_word(message, 'OPENED ', LIGHT_BLUE, bold=True) message = format_word(message, 'UPDATED ', BLUE, bold=True) message = format_word(message, 'CLOSED_ALL ', RED, bold=True) # Yes, logger takes its '*args' as 'args'. self._log(self.TRADE, message, args, **kws)