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What is the right way to cross asynchronously and save my results with django celery and redis and save mine?

I am trying to understand what my problem is when I try to clear using the function created in my django application. The function goes to the website, collects the data and stores it in my database. At first I tried to use rq and redis for a while, but I kept getting an error message. So someone thought I should try and use celery, and I did it. But now I see that the problem is with rq or celery. Because I get the same error message as before. I was tired of importing it, but still got an error message, and then I thought well, maybe if I have the actual function in the tasks.py file, it will make a difference, but it is not. Here is my function that I tried to use in my tasks .py

import requests
from bs4 import BeautifulSoup
from src.blog.models import Post
import random
import re
from django.contrib.auth.models import User
import os

@app.tasks
def p_panties():
    def swappo():
        user_one = ' "Mozilla/5.0 (Windows NT 6.0; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0" '
        user_two = ' "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5)" '
        user_thr = ' "Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko" '
        user_for = ' "Mozilla/5.0 (Macintosh; Intel Mac OS X x.y; rv:10.0) Gecko/20100101 Firefox/10.0" '

        agent_list = [user_one, user_two, user_thr, user_for]
        a = random.choice(agent_list)
        return a

    headers = {
        "user-agent": swappo(),
        "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
        "accept-charset": "ISO-8859-1,utf-8;q=0.7,*;q=0.3",
        "accept-encoding": "gzip,deflate,sdch",
        "accept-language": "en-US,en;q=0.8",
    }

    pan_url = 'http://www.example.org'
    shtml = requests.get(pan_url, headers=headers)
    soup = BeautifulSoup(shtml.text, 'html5lib')
    video_row = soup.find_all('div', {'class': 'post-start'})
    name = 'pan videos'

    if os.getenv('_system_name') == 'OSX':
        author = User.objects.get(id=2)
    else:
        author = User.objects.get(id=3)

    def youtube_link(url):
        youtube_page = requests.get(url, headers=headers)
        soupdata = BeautifulSoup(youtube_page.text, 'html5lib')
        video_row = soupdata.find_all('p')[0]
        entries = [{'text': div,
                    } for div in video_row]
        tubby = str(entries[0]['text'])
        urls = re.findall('http[s]?://(?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*\(\),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+', tubby)
        cleaned_url = urls[0].replace('?&autoplay=1', '')
        return cleaned_url

    def yt_id(code):
        the_id = code
        youtube_id = the_id.replace('https://www.youtube.com/embed/', '')
        return youtube_id

    def strip_hd(hd, move):
        str = hd
        new_hd = str.replace(move, '')
        return new_hd

    entries = [{'href': div.a.get('href'),
                'text': strip_hd(strip_hd(div.h2.text, '– Official video HD'), '– Oficial video HD').lstrip(),
                'embed': youtube_link(div.a.get('href')), #embed
                'comments': strip_hd(strip_hd(div.h2.text, '– Official video HD'), '– Oficial video HD').lstrip(),
                'src': 'https://i.ytimg.com/vi/' + yt_id(youtube_link(div.a.get('href'))) + '/maxresdefault.jpg', #image
                'name': name,
                'url': div.a.get('href'),
                'author': author,
                'video': True

                } for div in video_row][:13]

    for entry in entries:
        post = Post()
        post.title = entry['text']
        title = post.title
        if not Post.objects.filter(title=title):
            post.title = entry['text']
            post.name = entry['name']
            post.url = entry['url']
            post.body = entry['comments']
            post.image_url = entry['src']
            post.video_path = entry['embed']
            post.author = entry['author']
            post.video = entry['video']
            post.status = 'draft'
            post.save()
            post.tags.add("video", "Musica")
    return entries

and in python shell if i run

from tasks import *

I get

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/ray/Desktop/myheroku/practice/tasks.py", line 5, in <module>
    from src.blog.models import Post
  File "/Users/ray/Desktop/myheroku/practice/src/blog/models.py", line 3, in <module>
    from taggit.managers import TaggableManager
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/taggit/managers.py", line 7, in <module>
    from django.contrib.contenttypes.models import ContentType
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/django/contrib/contenttypes/models.py", line 159, in <module>
    class ContentType(models.Model):
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/django/contrib/contenttypes/models.py", line 160, in ContentType
    app_label = models.CharField(max_length=100)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/django/db/models/fields/__init__.py", line 1072, in __init__
    super(CharField, self).__init__(*args, **kwargs)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/django/db/models/fields/__init__.py", line 166, in __init__
    self.db_tablespace = db_tablespace or settings.DEFAULT_INDEX_TABLESPACE
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/django/conf/__init__.py", line 55, in __getattr__
    self._setup(name)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/django/conf/__init__.py", line 41, in _setup
    % (desc, ENVIRONMENT_VARIABLE))
django.core.exceptions.ImproperlyConfigured: Requested setting DEFAULT_INDEX_TABLESPACE, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

, rq redis. , ,

import requests
from bs4 import BeautifulSoup
# from src.blog.models import Post
import random
import re
# from django.contrib.auth.models import User
import os


@app.task
def p_panties():
    def swappo():
        user_one = ' "Mozilla/5.0 (Windows NT 6.0; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0" '
        user_two = ' "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5)" '
        user_thr = ' "Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko" '
        user_for = ' "Mozilla/5.0 (Macintosh; Intel Mac OS X x.y; rv:10.0) Gecko/20100101 Firefox/10.0" '

        agent_list = [user_one, user_two, user_thr, user_for]
        a = random.choice(agent_list)
        return a

    headers = {
        "user-agent": swappo(),
        "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
        "accept-charset": "ISO-8859-1,utf-8;q=0.7,*;q=0.3",
        "accept-encoding": "gzip,deflate,sdch",
        "accept-language": "en-US,en;q=0.8",
    }

    pan_url = 'http://www.example.org'
    shtml = requests.get(pan_url, headers=headers)
    soup = BeautifulSoup(shtml.text, 'html5lib')
    video_row = soup.find_all('div', {'class': 'post-start'})
    name = 'pan videos'

    # if os.getenv('_system_name') == 'OSX':
    #     author = User.objects.get(id=2)
    # else:
    #     author = User.objects.get(id=3)

    def youtube_link(url):
        youtube_page = requests.get(url, headers=headers)
        soupdata = BeautifulSoup(youtube_page.text, 'html5lib')
        video_row = soupdata.find_all('p')[0]
        entries = [{'text': div,
                    } for div in video_row]
        tubby = str(entries[0]['text'])
        urls = re.findall('http[s]?://(?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*\(\),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+', tubby)
        cleaned_url = urls[0].replace('?&amp;autoplay=1', '')
        return cleaned_url

    def yt_id(code):
        the_id = code
        youtube_id = the_id.replace('https://www.youtube.com/embed/', '')
        return youtube_id

    def strip_hd(hd, move):
        str = hd
        new_hd = str.replace(move, '')
        return new_hd

    entries = [{'href': div.a.get('href'),
                'text': strip_hd(strip_hd(div.h2.text, '– Official video HD'), '– Oficial video HD').lstrip(),
                'embed': youtube_link(div.a.get('href')), #embed
                'comments': strip_hd(strip_hd(div.h2.text, '– Official video HD'), '– Oficial video HD').lstrip(),
                'src': 'https://i.ytimg.com/vi/' + yt_id(youtube_link(div.a.get('href'))) + '/maxresdefault.jpg', #image
                'name': name,
                'url': div.a.get('href'),
                # 'author': author,
                'video': True

                } for div in video_row][:13]
    #
    # for entry in entries:
    #     post = Post()
    #     post.title = entry['text']
    #     title = post.title
    #     if not Post.objects.filter(title=title):
    #         post.title = entry['text']
    #         post.name = entry['name']
    #         post.url = entry['url']
    #         post.body = entry['comments']
    #         post.image_url = entry['src']
    #         post.video_path = entry['embed']
    #         post.author = entry['author']
    #         post.video = entry['video']
    #         post.status = 'draft'
    #         post.save()
    #         post.tags.add("video", "Musica")
    return entries

,

[2016-08-13 08:31:17,222: INFO/MainProcess] Received task: tasks.p_panties[e196c6bf-2b87-4bb2-ae11-452e3c41434f]
[2016-08-13 08:31:17,238: INFO/Worker-4] Starting new HTTP connection (1): www.example.org
[2016-08-13 08:31:17,582: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:18,314: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:18,870: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:19,476: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:20,089: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:20,711: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:21,218: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:21,727: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:22,372: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:22,785: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:23,375: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:23,983: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:24,396: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:25,003: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:25,621: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:26,029: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:26,446: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:27,261: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:27,671: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:28,082: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:28,694: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:29,311: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:29,922: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:30,535: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:31,154: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:31,765: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:32,387: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:32,992: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:33,611: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:34,030: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:34,635: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:35,041: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:35,659: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:36,278: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:36,886: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:37,496: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:37,913: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:38,564: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:39,143: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:39,754: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:40,409: INFO/Worker-4] Starting new HTTP connection (1): example.org
[2016-08-13 08:31:40,992: INFO/MainProcess] Task tasks.p_panties[e196c6bf-2b87-4bb2-ae11-452e3c41434f] succeeded in 23.767645187006565s: [{'src': 'https://i.ytimg.com/vi/3bU-AtShW7Y/maxresdefault.jpg', 'name': 'pan videos', 'url':...

, - Post. , . , . . , , .

environ\
  |-src\
     |-blog\
        |-migrations\
        |-static\
        |-templates\
        |-templatetags\
        |-__init__.py
        |-admin.py
        |-forms.py
        |-models
        |-tasks
        |-urls
        |-views
+4
1

Django

, Python, , , Django.

, , python Django , . manage.py, manage.py , python script . DJANGO_SETTINGS_MODULE.

, , , python script, , python.

, django, ( django), manage.py - :

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myapp.settings")

Go , DEFAULT_SETTINGS_MODULE, :

os.environ.setdefault("DJANGO_SETTINGS_MODULE", DEFAULT_SETTINGS_MODULE)

script django ( env var), .

, :

import sys, os
sys.path.insert(0, "/path/to/parent/of/src") # /home/projects/my-crawler

from manage import DEFAULT_SETTINGS_MODULE
os.environ.setdefault("DJANGO_SETTINGS_MODULE", DEFAULT_SETTINGS_MODULE)

import django
django.setup() 
... The rest of your script ...

, . celery, .delay() .apply_async(), , .

- python python manage.py shell, django . .

, , , redis (, -... .., ​​ ).

.

Redis

from redis import StrictRedis

redis = StrictRedis(host='localhost', port=6379, db=0)

redis.set("scraping:tasks:results:TASK-ID-HERE", json.dumps(entries))

, Redis /.

, ,

with redis.pipeline() as pipe:
    for item in entries:
        pipe.rpush("scraping:tasks:results", json.dumps(item))
    pipe.execute()

----

, , . :

@celery_app.task
def handle_scraping_results(entries):
    you do whatever you want with the entries array now

p_panties :

handle_scraping_results.delay(entries)

RabbitMQ, p_panties, handle_scraping_results. , , , , ! . , . RabbitMQ A ( p_panties) B ( handle_result) ( RPC).

rabbitmq, redis. celery, , , . , ( ). async, . , python manage.py, .

--------- II

. , , - .

, , . .

, redis, , , , .

redis_keys = redis.get("scraping:tasks:results:*")

for key in redis_keys:
    value_of_redis_key = redis.get(key)
    entries = json.loads(entries)
    for entry in entries:
        post = Post()
        post.title = entry['text']
        title = post.title
        if not Post.objects.filter(title=title):
            post.title = entry['text']
            post.name = entry['name']
            post.url = entry['url']
            post.body = entry['comments']
            post.image_url = entry['src']
            post.video_path = entry['embed']
            post.author = entry['author']
            post.video = entry['video']
            post.status = 'draft'
            post.save()
            post.tags.add("video", "Musica")
+6

Source: https://habr.com/ru/post/1651157/

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