Python how to properly parse src and text without id?

Question

Python

Good evening!
Tell me how to parse correctly. I want to understand how to correctly write a request for a picture and text on nnmclub.
Picture:

img class="postImg postImgAligned img-right" alt="pic" title="pic" src=" s020.radikal.ru/i716/1504/b7/e429d2b86ebd.jpg "

I'm trying this option:

response = requests.get(' nnmclub.to/forum/viewtopic.php?t=474369 ', timeout=10)
parsed_body = html.fromstring(response.text)
text_from_url = parsed_body.xpath('//span[@alt= "pic"]/img[@src]/text()')
print(post_img)

Issues:

function post_img at 0x7f695ac77510

Where is the mistake?
I don't understand how to parse the description. There is no description in the description to find it. Sample text on a page :

Description:
Video on editing a book in FB2, in FictionBook Editor 2.6.6.
Lessons are created specifically for the topic - Creating and editing books in fb2 format Send
all questions and discussions to this topic.
The topic will be updated as lessons are received.

Answer 1

response = requests.get('nnmclub.to/forum/viewtopic.php?t=474369', timeout=10)
parsed_body = html.fromstring(response.text)
text_from_url = parsed_body.xpath('//span[@alt="pic"]/img[@src]/text()')
print(post_img) # post_img откуда???

Judging by the error, it should be like this:
print(post_img())