axil

format:
n:
regexp1_try1 try2 try3   regexp2_try1 try2 try3
 
10 :
4.35, 4.30, 4.31,       4.80, 4.81, 4.71,
4.31, 4.35, 4.33,       5.00, 5.04, 4.99,
3.88, 3.84, 3.85,       4.03, 3.99, 4.02,
4.13, 4.14, 4.17,       4.54, 4.53, 4.54,
4.42, 4.47, 4.37,       5.00, 4.96, 5.04,

axil

import re
from random import choice

#e1 = re.compile('((x((y|z))*x)|(y|z))*$')    # my
#e2 = re.compile('(y|z)*(x(y|z)*x(y|z)*)*$')
e1 = re.compile('(?:(?:x(?:[yz])*x)|[yz])*$')     #my
e2 = re.compile('(?:y|z)*(?:x(?:y|z)*x(?:y|z)*)*$')

res = 0

axil

import re
from random import choice

e1 = re.compile('(?:(?:x(?:[yz])*x)|[yz])*$')     #my
e2 = re.compile('(?:y|z)*(?:x(?:y|z)*x(?:y|z)*)*$')

res = 0

def test(e, s):
    global res

axil

import jinja2

env = jinja2.Environment(extensions=['jinja2.ext.do'])

template = '''
{% set p = [4,5,6] %}
{% set res = [] %}
{% for i in p %}
  {% do res.append(i) %}
{% endfor %}

axil

test(markdown('[Google - поиск №1](http://google.com)'), 
              '<a href="http://google.com">Google - поиск №1</a>')
test(markdown('[MS Bing] компания [Microsoft Bing](http://bing.com)'), 
              '[MS Bing] компания <a href="http://bing.com">Microsoft Bing</a>')
test(markdown('[Python](http://python.org)(v3.7)'), 
              '<a href="http://python.org">Python</a>(v3.7)')
test(markdown('[Яндекс!](http://ya.ru) и [百度](http://baidu.com)'), 
              '<a href="http://ya.ru">Яндекс!</a> и <a href="http://baidu.com">百度</a>')

axil

INSTALLED_APPS = [
    'core',
    'django.contrib.admin',

axil

from django.db import models
from django.contrib.auth.models import User

class Book(models.Model):
    author = models.ForeignKey(User)

axil

            managers=[
                ('objects', django.contrib.auth.models.UserManager()),
            ],
        ),
        migrations.RunSQL("INSERT INTO core_customuser SELECT * FROM auth_user"),    # <--- this line
    ]

axil

class Book(models.Model):
    author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)

axil

from django.contrib.auth.models import User
from django.contrib.contenttypes.fields import GenericForeignKey
from django.contrib.contenttypes.models import ContentType
from django.db import models

class Book(models.Model):
    author = models.ForeignKey(User, on_delete=models.CASCADE)

class Comment(models.Model):
    content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)