So ive googled and tried to change my code based on the other answers ive found, but i keep getting that error code.

Here is my code:

def genre_find(user_id):
    global response_user_id
    global response
    global genreif
    if response_user_id != user_id:
        response = requests.get('https://www.fanfiction.net/u/{}'.format(user_id))
        response_user_id = user_id
        sleep(randint(3, 4))
    if response.status_code == requests.codes.ok:
        soup = bs(response.text, 'html.parser')
        user_info = soup.select("#content_wrapper_inner table table tr td")
        my_stories = soup.select("div.mystories")
        genre = None
        for story in my_stories:
            genre = story.find_all("div")[-1].text.split(" - ")[3]
           return genre
        genreif = genre.startswith('Chap')
    return genreif

Error: (line 17 here)

  File "test_two.py", line 74, in <module>
user_write_story_data = get_user_information(user_id)
File "test_two.py", line 42, in get_user_information
genre_find(user_id)
File "test_two.py", line 34, in genre_find
genreif = genre.startswith('Chap')
AttributeError: 'NoneType' object has no attribute 'startswith'

Hello, I am trying to create a python program that generates a double sha256 hash with a specific number of zeros by changing a nonce But when I run it it gives me an attribute error

NONCE_LIMIT=1000000000
zeroes=4
def mine (block1):
 for nonce in range (NONCE_LIMIT):
     base_text=str(block1)+str(nonce)
     ab=hashlib.sha256(base_text.encode()).hexdigest()
     hash_try=hashlib.sha256(ab.encode()).hexdigest
     if hash_try.startswith(0*zeroes):
         print(f'found hash with nonce: {nonce}')
         return hash_try
         
         return -1 
        
block1=bytes.fromhex('22bdef')
mine(block1)```

I have some experience with programming in Java, C++, etc. and I am trying to write a simple "To-Do List" program to get used to Python. I'm running into the error: str object has no attribute "completed" when trying to iterate over the list of tasks, check their completion status, and display them.

Here are some relevant pieces of the program:

Constructor for the Task class

def __init__(self, task_name):

self.task_name = task_name

self.completed = False

In the ToDoList class (which holds a list of the task instances created by the user) this is the iteration throwing the error in question:

for idx, task in enumerate(self.tasks, start=1):

status = "Completed" if task.completed else "Incomplete"

print(f"{idx}. {task.task_name} - {status}")

I thought, potentially the problem lies in the fact that the enumerate function is grabbing the string value of the task instance, rather than the object itself, so maybe I can iterate over it the old fashioned way and get around it. So I tried it like this:

counter = 1

for task in self.tasks:

status = "Completed" if task.completed else "Incomplete"

print(f"{counter}. {task.task_name} - {status}")

counter += 1

Yet, it throws the same error. I know there is something I am missing or not understanding correctly here. What is it?

Thanks!

I've been working on setting up a "simple" Flask app with a cloud-hosted postgres database.

My app's config.py file includes the following code:

SQLALCHEMY_DATABASE_URI = os.environ.get('dbs_url')
  if os.environ.get('dbs_url').startswith('postgres') :
      SQLALCHEMY_DATABASE_URI = os.environ.get('dbs_url').replace('postgres', 'postgresql')

Long story short, this is included because ElephantSQL starts their database URLs with "postgres" while SQLAlchemy expects them to begin with "postgresql".

Generally speaking this has worked just fine.

Now, though, I'm in a situation where I need to edit a local database entry directly (I added a new column to an existing table). As far as I know I need to enter Python's shell and import the database model that represents the offending table, like >>> from [app] import [Class]. Apparently doing that involves pulling from the config.py file somehow, because when I try importing a model I get the following error:

Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
 File "C:\Users\colby\coding_temple\assignments\week_5\01\homework\app\
  from config import Conf
 File "C:\Users\colby\coding_temple\assignments\week_5\01\homework\conf
  class Conf:
 File "C:\Users\colby\coding_temple\assignments\week_5\01\homework\conf
  if os.environ.get('dbs_url').startswith('postgres'):
AttributeError: 'NoneType' object has no attribute 'startswith'

Regardless of whether what I'm doing makes any sense (I'm sure it doesn't), I'd like to re-write this in a way that doesn't cause this error.

Edit: I was indeed doing something that didn't make any sense. I didn't need to try this at all, just delete a row from my ElephantSQL database. Not sure why I thought there was something locally