2015-10-19 08:42:17 +00:00
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# encoding: UTF-8
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"""
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包含一些开放中常用的函数
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"""
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import decimal
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MAX_NUMBER = 1000000000
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MAX_DECIMAL = 4
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2015-11-15 07:53:54 +00:00
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# ----------------------------------------------------------------------
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2015-10-19 08:42:17 +00:00
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def safeUnicode(value):
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"""检查接口数据潜在的错误，保证转化为的字符串正确"""
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# 检查是数字接近0时会出现的浮点数上限
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if type(value) is int or type(value) is float:
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if value > MAX_NUMBER:
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value = 0
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# 检查防止小数点位过多
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if type(value) is float:
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d = decimal.Decimal(str(value))
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if abs(d.as_tuple().exponent) > MAX_DECIMAL:
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value = round(value, ndigits=MAX_DECIMAL)
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return unicode(value)
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