hello.pyx
def say_hello_to(name):
　　print("Hello %s!" % name)

C:\Users\test\>python C:\Python31\Scripts\cython.py hello.pyx

Error converting Pyrex file to C:
------------------------------------------------------------
...
def say_hello_to(name):
^
------------------------------------------------------------

C:\Users\test\hello.pyx:1:23: Unrecognized character

こんなエラーが出るんですがどうしたらいいですか？