Lasha Gogua Lh4cKg

MongoDB $lookup aggregation

db.votes.aggregate([{
    $lookup: {
        from: "users",
        localField: "createdBy",
        foreignField: "_id",

303 See Other

Location: https://github.com/wsargent/docker-cheat-sheet

Hi there!

The docker cheat sheet has moved to a Github project under https://github.com/wsargent/docker-cheat-sheet.

Please click on the link above to go to the cheat sheet.

Transforming Code into Beautiful, Idiomatic Python

Notes from Raymond Hettinger's talk at pycon US 2013 video, slides.

The code examples and direct quotes are all from Raymond's talk. I've reproduced them here for my own edification and the hopes that others will find them as handy as I have!

Looping over a range of numbers

for i in [0, 1, 2, 3, 4, 5]:

	"""
	Service API:
	public string GetCurrency(Currency cur) აბრუნებს ვალუტის კურსს, მაგ. "1.0754"
	public string GetCurrencyDescription(Currency cur) აბრუნებს ვალუტის აღწერას, მაგ. "10 ესტორნური კრონი"
	public string GetCurrencyChange(Currency cur) აბრუნებს ვალუტის ცვლილების მნიშვნელობას, მაგ. "-0.0121"
	public int GetCurrencyRate(Currency cur) 1 - თუ გაიზარდა; -1 - თუ დაიკლო, 0 - თუ იგივე დარჩა
	public string GetDate() აბრუნებს კურსების შესაბამის თარიღს

	"""

	# old django version: 1.6.x
	# configure and run django script

	if __name__ == '__main__':
	import os
	import sys
	import importlib

	proj_path = '/home/gogua/projects/profenv/profiling/'
	sys.path.append(proj_path)


	# Python 2.x
	for x in [unichr(i) for i in range(ord(u'ა'),ord(u'ჰ') +1)]:
	pattern = unicode("!@#$%^&*()_+=-~`[]\{}\|:\"?><,./;'\`„\"")
	char = re.sub('[%s]' % re.escape(''.join(pattern)), '', x.strip())
	print char

	# Python 3.x
	for x in [chr(i) for i in range(ord('ა'),ord('ჰ') +1)]:
	pattern = "!@#$%^&*()_+=-~`[]\{}\|:\"?><,./;'\`„\""

	#models.py

	class Task(models.Model):
	title = models.CharField(max_length=255)
	description = models.TextField()

	def __unicode__(self):
	return self.title

	# __ coding: utf-8 __

	"""
	IPC
	Created on Apr 24, 2017

	@author: lasha gogua
	"""

	from django import forms

	1. django (latest version)
	$ pip install django
	2. celery (latest version)
	$ pip install celery
	first steps
	docs: http://docs.celeryproject.org/en/latest/django/first-steps-with-django.html

	install celery extension
	$ pip install django-celery-beat
	docs: http://docs.celeryproject.org/en/latest/django/first-steps-with-django.html#django-celery-beat

	# ubutnu/debian Python installation requirements
	sudo apt -y install build-essential checkinstall
	sudo apt -y install libreadline-gplv2-dev libncursesw5-dev \
	libsqlite3-dev tk-dev libgdbm-dev libc6-dev
	sudo apt -y install libjpeg-dev libpng-dev
	sudo apt -y install zlib1g-dev libbz2-dev
	sudo apt -y install krb5-multidev
	sudo apt -y install openssl libssl-dev
	sudo apt -y install libffi-dev
	sudo apt -y install libgmp-dev