CODEWITHSUNDEEP
pythonhtmlemailencodingsmtp
lavarockman
lavarockman

Reputation: 55

'NoneType' object has no attribute 'encode' error when attaching html to email

I'm trying to attach html into emails with a python script. I've been able to send them successfully however wanted to have more organized code. I created a function that has the HTML inside it as a string. However there seems to be an encoding issue when I attach it onto an email. I need help to figure where I need to set the encoding.

I read some other posts regarding this same error message and they all seem to add this line of code onto their string.

encode('utf8')

So I have tried attaching this onto where I think it needs to go, but have not been able to find any success.

This is what I have 

    def EmailTemplate():
    test = """\
    <html>
      <head></head>
      <body>
        <p>Hi!<br>
           How are you?<br>
           Here is the <a href="http://www.python.org">link</a> you wanted.
        </p>
      </body>
    </html>
    """
def SendEmail(me, you):

    # me == my email address
    # you == recipient's email address
    # Create message container - the correct MIME type is multipart/alternative.
    msg = MIMEMultipart('alternative')
    msg['Subject'] = "You've gone over your credit limit"
    msg['From'] = me
    msg['To'] = you

    # Create the body of the message (a plain-text and an HTML version).
    text = ''
    html = EmailTemplate()


    # Record the MIME types of both parts - text/plain and text/html.
    part1 = MIMEText(text, 'plain')
    part2 = MIMEText(html, 'html')

This code worked when I had the HTML as a string. However I now added a function to try and do the same thing.

For Example this is what i had before and worked

html = """\
    <html>
      <head></head>
      <body>
        <p>Hi!<br>
           How are you?<br>
           Here is the <a href="http://www.python.org">link</a> you wanted.
        </p>
      </body>
    </html>
    """

So I tried to replicate that with the following.

html = EmailTemplate()

Then the Function is 

def EmailTemplate():
    test = """\
    <html>
      <head></head>
      <body>
        <p>Hi!<br>
           How are you?<br>
           Here is the <a href="http://www.python.org">link</a> you wanted.
        </p>
      </body>
    </html>
    """

I Expected the email to send as normal, since the function is the same thing. However i get this for the error message.

File "H:\Files\Projects\Python\Test\Htmlemail.py", line 34, in SendEmail
    part2 = MIMEText(html, 'html')

File "C:\Users\vanle\AppData\Local\Programs\Python\Python37-32\lib\email\mime\text.py", line 34, in __init__
    _text.encode('us-ascii')
AttributeError: 'NoneType' object has no attribute 'encode'

So I tried to add the encoding to the following line of code

part2 = MIMEText(html.encode('utf8'), 'html')

However i still get this error message 


File "H:\Files\Projects\Python\Test\Htmlemail.py", line 34, in SendEmail
    part2 = MIMEText(html.encode('utf8'), 'html')
AttributeError: 'NoneType' object has no attribute 'encode'

Upvotes: 0

Views: 2037

Answers (1)

Huw Thomas
Huw Thomas

Reputation: 317

Your EmailTemplate function has no return statement and so is assigning None to your variable html. Adding return test to the end of the EmailTemplate definition should solve this.

def EmailTemplate():
    test = """\
        <html>
          <head></head>
          <body>
            <p>Hi!<br>
               How are you?<br>
               Here is the <a href="http://www.python.org">link</a> you wanted.
            </p>
          </body>
        </html>
        """
    return test

Upvotes: 1

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