formido

>>> import base64
>>> import hashlib
>>> base64.b64encode(hashlib.sha1("test").digest())
'qUqP5cyxm6YcTAhz05Hph5gvu9M='

sweenzor

# nuke the queue
redis-cli FLUSHALL

# nuke anything currently running
pkill -9 celeryd

bradmontgomery

from datetime import timedelta


def week_range(date):
    """Find the first & last day of the week for the given day.
    Assuming weeks start on Sunday and end on Saturday.

    Returns a tuple of ``(start_date, end_date)``.

    """

johtso

import re

from rest_framework import serializers, renderers, parsers


class JSONRenderer(renderers.JSONRenderer):
    def render(self, data, *args, **kwargs):
        if data:
            data = recursive_key_map(underscore_to_camelcase, data)
        return super(JSONRenderer, self).render(data, *args, **kwargs)

darklow

from celery import Task
from celery.task import task
from my_app.models import FailedTask
from django.db import models

@task(base=LogErrorsTask)
def some task():
    return result
    
class LogErrorsTask(Task):

djspiewak

Git DMZ Flow

I've been asked a few times over the last few months to put together a full write-up of the Git workflow we use at RichRelevance (and at Precog before), since I have referenced it in passing quite a few times in tweets and in person. The workflow is appreciably different from GitFlow and its derivatives, and thus it brings with it a different set of tradeoffs and optimizations. To that end, it would probably be helpful to go over exactly what workflow benefits I find to be beneficial or even necessary.

• Two developers working on independent features must never be blocked by each other
  • No code freeze! Ever! For any reason!
• A developer must be able to base derivative work on another developer's work, without waiting for any third party
• Two developers working on inter-dependent features (or even the same feature) must be able to do so without interference from (or interfering with) any other parties
• Developers must be able to work on multiple features simultaneously, or at lea

ostcar

class IdManyRelatedField(ManyRelatedField):
    field_name_suffix = '_ids'

    def bind(self, field_name, parent):
        self.source = field_name[:-len(self.field_name_suffix)]
        super().bind(field_name, parent)


class IdPrimaryKeyRelatedField(PrimaryKeyRelatedField):
    """

danni

from django import forms
from django.contrib.postgres.fields import ArrayField


class ChoiceArrayField(ArrayField):
    """
    A field that allows us to store an array of choices.
    
    Uses Django 1.9's postgres ArrayField
    and a MultipleChoiceField for its formfield.

brunogaspar

Install wkhtmltopdf on Ubuntu

This was tested on:

• Ubuntu 14.04 x64
• Ubuntu 16.04 x64

Installation

lkrone

#!/usr/bin/env python3

from reportlab.lib.pagesizes import A4
from reportlab.graphics.shapes import Drawing, String
from reportlab.graphics.barcode.eanbc import Ean13BarcodeWidget
from reportlab.graphics import renderPDF
from reportlab.pdfgen.canvas import Canvas

"""
Adjust pagesize, number of labels, barcode size and