Note that in Python 3 (and Python 2.6 and up)sys.maxsize can be used when you need an arbitrarily-large value. –  Jan 23 '12 at 19:07

• adj.任意的；专制的；武断的；霸道的

Adjective:based on or subject to individual discretion or preference or sometimes impulse or caprice;"an arbitrary decision" "the arbitrary rule of a dictator" "an arbitrary penalty" "of arbitrary size and shape" "an arbitrary choice" "arbitrary division of the group into halves"

1. My choice was quite arbitrary.
   我的选择相当随意。
2. I'm not used to your arbitrary standards.
   我不习惯你们那些随心所欲的标准。
3. This is an arbitrary decision.
   这是个武断的决定。

• n.精确；精密度
• adj.精确的

Noun:the quality of being reproducible in amount or performance;"he handled it with the preciseness of an automaton" "note the meticulous precision of his measurements"

1. The teacher laid emphasis on the precision of the translation from the outset.
   老师从一开始就强调翻译准确性。
2. Your report lacks precision.
   你的报告不够准确。
3. Every argument was stated with logical precision.
   每一个论点都阐述得精确严密，符合逻辑。
4. These instruments are capable of very high precision.
   这些仪器可以达到很高的精密度。
5. Different time have different concepts on precision or high precision mold.
   对于精密或超精密度模具,不同时期有不同的概念。

1. He spoke with pluperfect precision.
   他用极为精确的话语发言。
2. Precision measurement is the key to producing interchangeable parts and mass producing goods.
   精确的测量是生产互换零件和批量产品的关键。