hannal

from itertools import combinations
from math import factorial


def count_combinations(n: int, r: int):
    return int(factorial(n) / (factorial(r) * factorial(n-r)))

team_count = 4

#          0    1    2    3    4    5    6    7    8    9    10   11

hannal

{{ apple|default:lemon.dictattr.color }} {# VariableDoesNotExist exception 발생 #}

<hr />

{% with lemon.dictattr.color as colour %}
    {{ apple|default:colour }} {# 문제 없음 #}
{% endwith %}

hannal

from datetime import datetime


def hello(now=datetime.now()):
    print(now)

hannal

class BaseModel(models.Model):
    class Meta:
        abstract = True

        
class A(BaseModel):
    pass

hannal

class Number(int):
    def __add__(self, value):
        return self.__int__() + value * 10

hannal

from datetime import datetime

from django.db import models
from django.utils import timezone


class Post(models.Model):
    # created_at = models.DateTimeField(auto_now_add=True)  # 원래 필드
    # updated_at = models.DateTimeField(auto_now=True)  # 원래 필드
    # created_at = models.DateTimeField(default=datetime.now)  # TIMEZONE 을 안 쓰는 경우

hannal

from django.http import QueryDict
from django.http.multipartparser import MultiValueDict


class MoreMethodsMiddleware(object):
    def process_request(self, request):
        method = request.META.get('REQUEST_METHOD', '').upper()
        request.PUT = QueryDict('')
        request.DELETE = QueryDict('')

hannal

class LikeDict(dict):
    def __getattribute__(self, attr):
        return self[attr]

    def __setattr__(self, attr, value):
        self[attr] = value


class LikeDict2(object):
    def __getitem__(self, key):

hannal

{
	"shell_cmd": "python -u \"$file\"",
	"file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)",
	"selector": "source.python",
	"env": {"PYTHONIOENCODING": "utf8"}
}

hannal

c_num = 10
d_num = 0

def do_something(a, b, c=0, d=0):
    return a + b + c + d

if d_num > 0:
    print(do_something(1, 2, c=c_num, d=d_num))
else: