ImportError: No module named hmac

 Traceback (most recent call last):
  File "C:\private\2000b1a5\default.py", line 81, in menu_action
    f()
  File "C:\private\2000b1a5\default.py", line 65, in query_and_exec
    execfile(script_list[index][1].encode('utf-8'), script_namespace.namespace)
  File "c:\python\222.py", line 5, in ?
    connect = SMTP('smtp.mail.ru')
NameError: name 'SMTP' is not defined

 Traceback (most recent call last):
  File "C:\private\2000b1a5\default.py", line 81, in menu_action
    f()
  File "C:\private\2000b1a5\default.py", line 65, in query_and_exec
    execfile(script_list[index][1].encode('utf-8'), script_namespace.namespace)
  File "c:\python\222.py", line 12, in ?
    connect.sendmail(fromad, toad, message)
  File "c:\resource\smtplib.py", line 636, in sendmail
    raise SMTPHeloError(code, resp)
SMTPHeloError: (501, 'Syntactically invalid HELO argument(s)')