numpy scipy是数值计算的扩展包
pandas是主要用来做数据处理(numpy依赖)
sympy做符号计算(类似mathematica?)
shlex shlex模块实现了一个类来解析简单的类shell语法,可以用来编写领域特定的语言,
re(正则表达式)regual expression
import re
text = "JGood is a handsome boy, he is cool, clever, and so on..."
m = re.match(r"(\w+)\s", text)
if m:
print m.group(0), '\n', m.group(1)
else:
print 'not match'