its possible banned from facebook ? how prevent this?

After trying the script recently, I found out that the requests model is not able to login to Facebook anymore.
To solve this issue, I believe we can update the login mechanism by using selenium instead of requests.

hello i am asking about if i want to scrape informations by username that the user will insert how to do it?

There is a wrong assignment statement after calling the get_post_comments function.

def get_post_comments(self, soup):
   ...
   return comments_dict, who_commented_dict

After calling the function, we reversed the assignment.

for i in range(number_posts_max):
     ...
     who_commented, comments = scraper.get_post_comments(post_soup, comments_max=number_comments_max)

the correct order needs to be:

    comments, who_commented = scraper.get_post_comments(post_soup, comments_max=number_comments_max)

The program seems to run smoothly, but I couldn't trace where the product(excel file) is located after running the program.

https://www.facebook.com/checkpoint/block/