import re
arg = "jing4 gong1 sang1 zi3"
arg_count = arg.count(" ")
patten ="([a-z]*)\d\s?"*(arg_count+1)
print patten
arg_compile = re.compile(patten)
match_obj = arg_compile.search(arg)
print match_obj.groups()
import re
arg = "jing4 gong1 sang1 zi3"
arg_count = arg.count(" ")
patten ="([a-z]*)\d\s?"*(arg_count+1)
print patten
arg_compile = re.compile(patten)
match_obj = arg_compile.search(arg)
print match_obj.groups()