def main():
      a=raw_input("please enter a odd :")
      b=int(a)
      if b%2==1:
            prin(b)

if _name_==_main_:
      main()


出现这样的错误：
Traceback (most recent call last):
  File "C:\Users\chen\Desktop\STAR.py", line 13, in <module>
    if _name_==_main_:
NameError: name '_name_' is not defined

if _name_=='_main_':
      main()
这样也不对

我自己给搞错了，粗心啊！