# encoding: UTF-8 """ 包含一些开发中常用的函数 """ import os import decimal import json from datetime import datetime MAX_NUMBER = 10000000000000 MAX_DECIMAL = 4 # ---------------------------------------------------------------------- def safeUnicode(value): """检查接口数据潜在的错误,保证转化为的字符串正确""" # 检查是数字接近0时会出现的浮点数上限 if type(value) is int or type(value) is float: if value > MAX_NUMBER: value = 0 # 检查防止小数点位过多 if type(value) is float: d = decimal.Decimal(str(value)) if abs(d.as_tuple().exponent) > MAX_DECIMAL: value = round(value, ndigits=MAX_DECIMAL) return unicode(value) #---------------------------------------------------------------------- def loadMongoSetting(): """载入MongoDB数据库的配置""" try: from trader.vtGlobal import globalSetting host = globalSetting['mongoHost'] port = globalSetting['mongoPort'] logging = globalSetting['mongoLogging'] except: host = 'localhost' port = 27017 logging = False return host, port, logging #---------------------------------------------------------------------- def todayDate(): """获取当前本机电脑时间的日期""" return datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)