Email python programming problems-CodePudding

This is a core "python programming (third edition)" in the third chapter example 3-4, two different types of task is created and sent E-mail messages, after the operation can't send out, don't know how to modify, another question, is the password input code does not require the sender ah, is this why? Mystery, expert advice please!

 #! The/usr/bin/env python 
'email - exammples. Py - demo creation of email messages' 

From email. Mime. Image import MIMEImage 
From email. Mime. Multipart import MIMEMultipart 
From email. Mime. The text import MIMEText 
The from smtplib import SMTP 

SENDER='SENDER email @ 126. com' 
RECIPS='recipient email @ 126. com' 
SOME_IMG_FILE='a certain image. JPG # image in the current folder 

# multipart the alternative: text and HTML 
Def make_mpa_msg () : 
Email=MIMEMultipart (' alternative ') 
Text=MIMEText (' Hello World! \ r \ n ', 'plain') 
Email. Attach (text) 
HTML=MIMEText (
' <body> '  ', 'HTML') 
Email. Attach (HTML) 
Return email 


# multipart: '
Def make_img_msg (fn) : 
F=open (fn, 'r') 
Data=(https://bbs.csdn.net/topics/f.read) 
F. lose () 
Email=MIMEImage (data, name=fn) 
Email. Add_header (' Content - Disposition, 
'the attachment; Filename="% s" '% fn) 
Return email 


Def sendMsg (fr, to, MSG) : 
S=SMTP (' localhost ') 
Is incremented=s.s endmail (fr, to, MSG) 
S.q uit () 


If __name__=="__main__ ': 
Print (' Sending multipart the alternative MSG.. ') 
MSG=make_mpa_msg () 
MSG=[' From '] SENDER 
MSG=[' To '] ', '. Join (RECIPS) 
MSG=[' Subject '] 'multipart the alternative test' 
SendMsg (SENDER, RECIPS, MSG. As_string ()) 

Print (' Sending image MSG... ') 
MSG=make_img_msg (SOME_IMG_FILE) 
MSG=[' From '] SENDER 
MSG=[' To '] ', '. Join (RECIPS) 
MSG=[' Subject '] 'image file test' 
SendMsg (SENDER, RECIPS, MSG. As_string ())