无法在python中导入smtplib

Question

>import smtplib
>Traceback (most recent call last):
>  File "<stdin>", line 1, in <module>
>  File "/usr/lib/python2.7/smtplib.py", line 46, 
>  in <module> importemail.utils
>  File "email.py", line 3, 
>  in <module> from smtplib import SMTP_SSL as SMTP
>  ImportError: cannot import name SMTP_SSL