移除ascii

	import string

	s = "Miljkovi´c, K¨all"
	printable = set(string.printable)
	print(filter(lambda x: x in printable, s))

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结果:

`
Miljkovic, Kall
`

或者用正则表达式：


{% highlight python %}
import re

s = "Miljkovi´c, K¨all"
print(re.sub(r'[^\x00-\x7f]', r'', s))
{% endhighlight %}

参考自[stackoverflow](http://stackoverflow.com/questions/8689795/how-can-i-remove-non-ascii-characters-but-leave-periods-and-spaces-using-python/8689826#8689826)