Przemysław Spychalski Przemek625

Introduction:

If we want to serialize objects we must consider two questions:

What to serialize? Which fields of objects, how deep to serialize related objects.
How output should looks like? Which format (xml, json, yaml), fields renaming, some format specific options (like attributes in xml - nothing similar in json), order of fields, some fields in other place in structure tree than others.

This questions lead as to two phases of serialization:

First phase "dehydration": Change class instances (generally Python class, particular Django Model class) to dictionary contains data(python native types) of all interesting us fields. In this stage we are not interested in specific format.

If we want to serialize objects we must consider two questions:

What to serialize? Which fields of objects, how deep to serialize related objects.
How output should looks like? Which format (xml, json, yaml), fields renaming, some format specific options (like attributes in xml - nothing similar in json), order of fields, some fields in other place in structure tree than others.

This questions lead as to two phases of serialization:

First phase "dehydration": Change class instances (generally Python class, particular Django Model class) to dictionary contains data(python native types) of all interesting us fields. In this stage we are not interested in specific format.

This guide assumes that your django application already running in the container.

You will have to make sure that django-extensions and jupyter packages are installed in the container's python virtual environment.

If you need to shell into the container as root user to do this, you can do so from the host PC:

	"""An example of a cache decorator."""

	import json
	from functools import wraps
	from redis import StrictRedis


	redis = StrictRedis()

	def cached(func):

	<form [formGroup]="form" ngSubmit="postForm()">
	<input type="file" formControlName="file" (change)="onFileChange($event)">
	<button type="submit">Upload</button>
	component:

	import { HttpClient, HttpParams, HttpRequest } from '@angular/common/http';
	import { FormBuilder, Validators } from '@angular/forms';
	import { Component } from '@angular/core';

	@Component({

	<form [formGroup]="form" ngSubmit="postForm()">
	<input type="file" formControlName="file" (change)="onFileChange($event)">
	<button type="submit">Upload</button>
	component:

	import { HttpClient, HttpParams, HttpRequest } from '@angular/common/http';
	import { FormBuilder, Validators } from '@angular/forms';
	import { Component } from '@angular/core';

	@Component({

	from itertools import groupby, izip
	from django.db import connections
	from monthdelta import MonthDelta
	import operator
	import datetime

	def months(startdate):
	"""Yield all months since start"""
	date = datetime.date(startdate.year, startdate.month, 1)
	while True:

	#views.py

	def events_index(request, year):
	selected_year = Year.objects.get(title=year)
	events_list = Event.objects.filter(year = selected_year.id).order_by('category','start_date')
	return render_to_response('events_list.html', {"events_list": events_list})

	#events_list.html

	{% regroup events_list by category.title as events_list_by_category %}

	INSTALLED_APPS += (
	'raven.contrib.django.raven_compat',
	)

	MIDDLEWARE_CLASSES += (
	'raven.contrib.django.raven_compat.middleware.Sentry404CatchMiddleware',
	)

	RAVEN_CONFIG = {
	'dsn': 'http://x:[email protected]/2', # NOQA

	# "Understanding Python's closures".
	#
	# Tested in Python 3.1.2
	#
	# General points:
	#
	# 1. Closured lexical environments are stored
	# in the property __closure__ of a function
	#
	# 2. If a function does not use free variables