d1ffuz0r - python, erlang, l1f3

Software Development Experiences

Roman Gladkov — Sun, 28 Feb 2021 12:56:00 +0300

I've came around the cool article where author gives his opinion on various software development topics after being 6 years in the industry: https://chriskiehl.com/article/thoughts-after-6-years

100% agree with him.

Happy 2021!

Erlang Logging Libraries

Roman Gladkov — Thu, 07 May 2020 00:00:00 +0300

Re-posting from 2015-01-07

Erlang has many logging libraries for any taste. We want to collect all of them to a single list and help you select the best one for your next or current project.

error_logger

error_logger is a built in Erlang/OTP event manager which is can be used …

N2O Logging. Custom backend

Roman Gladkov — Thu, 07 May 2020 00:00:00 +0300

Re-posting from 2014-10-17

In this tutorial we will show you how to create a custom logging backend for N2O. We will use Lager as a logging library.

As we described in the previous (N2O Logging) tutorial, the logging backend should be implementing 3 methods:

warning/3

info/3

error/3 …

N2O Logging

Roman Gladkov — Tue, 05 May 2020 00:00:00 +0300

Re-posting from 2014-10-08

Logging and Error tracking are very important things for every project. Let's learn how to write logs in N2O.

Note: For this example, we will use the code we created in previous articles about templates.

Implementation

N2O provides a basic interface for writing logs:

wf:warning/1 …

N2O templates. Erlydtl

Roman Gladkov — Mon, 04 May 2020 00:00:00 +0300

Re-posting from 2014-09-26

If you do use Django, ROR or any other modern framework, you should be familiar with templates. In N2O you can use Erlydtl templates. In this part we will show how to create a view that will be rendering a simple Erlydtl template.

For this step we …

N2O templates. Nitrogen

Roman Gladkov — Sun, 03 May 2020 00:00:00 +0300

Re-posting from 2014-09-25

N2O template (Nitrogen) basically is a bunch of Erlang records compiled into HTML code. You can read more about templates at https://synrc.com/apps/n2o/doc/web/ page. Here we want to show how all steps of the page creation. It will be done in several …

N2O templates. Static HTML

Roman Gladkov — Sat, 02 May 2020 00:00:00 +0300

Re-posting from 2014-09-24

It's a time to learn more N2O. In this article we will show how to render templates using different techniques:

Static html template
N2O record-based templates
Erlydtl templates

Environment

For this example, we will use a project we have created in the previous tutorial. A directory structure …

Hello N2O!

Roman Gladkov — Fri, 01 May 2020 00:00:00 +0300

Re-posting from 2014-09-16

"N2O — The Most Powerful Erlang Web Framework"

As a first step, we will show how to install N2O and create a simple application.

Environment

N2O is an Erlang framework so let's install Erlang first (if you haven't done it yet).

In Linux, we will use Erlang Solutions …

PyCon US 2017

Roman Gladkov — Fri, 15 Mar 2019 12:28:00 +0300

Keynote Day 1

Video https://www.youtube.com/watch?v=ZyjCqQEUa8o

Introduction. PyCon is changing. Over years the conference has changed from all mostly web-focused it to a very diverse conference. Now there’s a lot of scientists (numpy, scipy), devops (ansible, redhat), web (django, flask), data engineering (spark, dask …

Erlang vs Scala

Roman Gladkov — Wed, 24 Oct 2018 21:22:00 +0300

[10:59] z-b>
http://highscalability.com/blog/2014/1/6/how-hipchat-stores-and-indexes-billions-of-messages-using-el.html
[10:59] z-b> :)))))))))))))))))
[11:00] z-b> хайлод уровня бэ
[11:05] Чубака> z-b: umeshu na 1 shared hosting  na erlange
[11:06] z-b> Чубака: v 0.7 na scale
[11:06] Чубака> skala tam daje ne zapustitsya
[11 …

SQLALchemy Query Manager

Roman Gladkov — Tue, 23 Oct 2018 12:12:00 +0300

So, Django has "manager" for the queries https://docs.djangoproject.com/en/1.4/topics/db/managers/#django.db.models.Manager, that is good for creating DSL.

For example, if you want get all users from database for chosen date, you can write some query:

User.objects.filter(birth_date > (date …

Python, Erlang, PostgreSQL, Clojure

Roman Gladkov — Sun, 24 Sep 2017 17:17:00 +0300

Ealier this year I had a goal to up my knowledge and become an expert in some technical areas. There's a bunch of links I found very interesting

Clojure

https://www.youtube.com/watch?v=sp2Zv7KFQQ0

https://en.wikibooks.org/wiki/Learning_Clojure

http://www.braveclojure.com/clojure-for-the-brave-and-true/

clojuredocs.org/clojure …

PG Bundle - All you need is Postgres

Roman Gladkov — Sun, 25 Jun 2017 15:15:00 +0300

I'm a huge fan of PostgreSQL. It's an open source RDBMS that makes MongoDB obsolete. But lack of information for new people who are in the beginning of their career makes it hard to get started with PostgreSQL and let MongoDB take that big slice of users.

I decided to …

What it takes to be productive?

Roman Gladkov — Thu, 08 Dec 2016 23:30:00 +0300

During all your career, while working for an employer or running your own business, you will always have a manager or be managing somebody. I, as a huge fun of productivity, trying to find ways to be as productive as possible and achieve more in shortest period of time. Productivity …

10 things about 2016

Roman Gladkov — Thu, 01 Dec 2016 23:30:00 +0300

How I spent this summ^Wyear.

I started this year completely burned out by working 16+ hours/day, combining daily work and a side project.
Visited Portland and San Diego for the first time with friends, 12 hours of driving San Diego-Oakland was fun but very tiring - would never do …

AIPromo - From Idea to Product

Roman Gladkov — Tue, 25 Oct 2016 23:30:00 +0300

Automation is great, it makes your life easy and freeing a lot of time.

AIPromo (https://aipromo.online) is a free AI powered content management tool. AIPromo's goal is to increase your personal brand and online presence on LinkedIn without doing anything, aka personal branding for lazy.

This project started …

2014-2015

Roman Gladkov — Thu, 01 Jan 2015 13:30:00 +0300

2014 Summary

1st year in the USA. Life here feels simple and sometimes boring
Silicon Valley is a cold place
Marketing is hard
Sales is hard
Mustang is awesome
Walking to the work is better than driving. Daily driving is boring
Work in the office > Remote work
Los Angeles is …

PyCon US 2014

Roman Gladkov — Tue, 29 Apr 2014 15:33:00 +0400

PyCon is over. This year the conference was at Montreal, Canada. The country looks pretty much as Russia from the window of airplane and city is very european. In comparison with PyCons I've visited before it was my biggest PyCon. I was impressed with how many people do use iPython …

crashkeeper

Roman Gladkov — Fri, 21 Feb 2014 22:35:00 +0400

CrashKeeper is a web service for collecting exceptions, logs and other things happened in your application.

The main point of the CrashKeeper - deep understanding of your information, such like logs with custom user-based parsers for their logs, better understanding language dependents (WOW ERLANG, SUCH CLOJURE) exceptions and messages (hello Sentry …

Self-taught

Roman Gladkov — Wed, 11 Sep 2013 00:30:00 +0400

I don't believe that stars on stackoverflow could help you get a job, they can give you attention of recruiters, not more. Same and Github. Before a large count of the interviews in soon, now is a good time to refresh knowledge. My check list to read&watch&learn for …

Thailand summary. Spring - Autumn 2013

Roman Gladkov — Tue, 10 Sep 2013 23:01:00 +0400

Let's try, it is my first big post after starting learning English in classes with the native speaker and using in real life.

My visit to Thailand comes to the end. Instead of one year that I wanted to live here, I spent only 5 months, even so I got …

Dash, Python

Roman Gladkov — Wed, 07 Aug 2013 16:03:00 +0400

Such awesome app, Dash. I heard about it app, but my laziness has not given to try one. Finally I have tried it recently with dash-at-point mode for Emacs. Easy access to help by one hot-key, without permanent switching to browser, support of bunch libraries and languages. But unfortunately Dash …

Green Card. California, US

Roman Gladkov — Sat, 11 May 2013 06:32:00 +0400

Before, in fall 2012, I have filled anket for the DV(Green Card) lottery. And recently I have got a great news, I won the green card. Green Card given me right for living and working at the US, with the following getting citizenship. Of course, I can't to lose …

SQLAlchemy packages

Roman Gladkov — Fri, 22 Mar 2013 23:03:00 +0400

My collection of SQLAlchemy packages. Descriptions will be in the future

https://gist.github.com/d1ffuz0r/5223734

Djangocon EU, Pycon SG

Roman Gladkov — Sun, 24 Feb 2013 23:17:00 +0400

In this year I'd like to go Djangocon EU, but my unexpected early relocation to Thailand has canceled it. And little time ago I found first Pycon at Singapur. I'll be there. May be, I'll to do some talk. It is dependents from progress of study at English courses.

Next step

Roman Gladkov — Sun, 03 Feb 2013 12:54:00 +0400

So, it's a time for the next step. And one year of my live in Moscow. Perhaps, that is like belated post "what I did in this year (2012)"

Moscow. City of opportunities.

Fast life, different event, different people, and the dirt (in spring, in winter, in autumn on street …

Python, Ruby, Jobs

Roman Gladkov — Sat, 19 Jan 2013 00:32:00 +0400

I look, for python, usually jobs for senior level programmers to big projects, for the middle and junior programmers very little, for ruby usually that is typical CRUD project for any level skills. Ruby is the new PHP?

Music and life

Roman Gladkov — Mon, 26 Nov 2012 23:09:00 +0400

Each big event or some part of time in my life usually have relate with new music groups in my music collection or gigs. So, latest of this year (relocation to Moscow): Candid8(punk) and Leaftrace (hardcore) with their best gigs. Very interested, what waits me for next year...

UA Pycon

Roman Gladkov — Wed, 31 Oct 2012 15:49:00 +0400

UA Pycon is done. In that year it be at 20-21 October in Kyiv. It be my first Pycon and first trip to foreign country. Way to Ukraine 12 hours with cute company.

After coming to Kyiv we and some small dinner we going to venue. Near doors we given …

Django dev

Roman Gladkov — Wed, 03 Oct 2012 15:39:00 +0400

Yeah! My http://github.com/django/django/pull/410 pull request with new feature now merged into Django and be available at 1.5.1 version

English, learning

Roman Gladkov — Wed, 12 Sep 2012 22:18:00 +0400

When i started learn english I had began it learn main words. After i had learned some words, I has felt needing to know more grammatical rules. Two months of the everyday work had given results for me. Today I have more knowledge of the grammatic rules and I again …

for developers

Roman Gladkov — Sat, 08 Sep 2012 16:36:00 +0400

Guys why you do not do screenshots your app or library in action? That can to save much time for other developers, they see your example and can chose need him or not your stuff. That important for to web-library or for any plugins.

Weekend, Coffeescript, HAML, SASS

Roman Gladkov — Sun, 05 Aug 2012 23:54:00 +0400

It's a time for to improve my English! Let's talk about HAML, SASS, Coffeescript now!

Long time i like try Coffeescript in action, and in that weekend I did it. It look better than pure JavaScript, as the mixture from Python, Ruby and Haskell of languages. Now write on the …

Ubuntu

Roman Gladkov — Thu, 28 Jun 2012 11:38:00 +0400

~ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded
    libraptor1
...

Ubuntu has some dinosaur??

Erlang Cheet Sheats

Roman Gladkov — Tue, 26 Jun 2012 18:19:00 +0400

List of Erlang cheat sheets:

http://www.cheat-sheets.org/saved-copy/Erlang.CheatSheet(1.0).pdf Erlang CheatSheet
http://apoie.org/Erlang%20-%20CheatSheet%20v1.0.pdf Erlang-CheatSheet v1.0
http://cheat.errtheblog.com/s/erlang/ Cheat Erlang
http://www.rustyrazorblade.com/2008/11/erlang-records-cheatsheet/ erlang-records-cheatsheet
http://www.scribd.com/doc …

PyCharm themes

Roman Gladkov — Sun, 10 Jun 2012 03:21:00 +0400

List of PyCharm themes on GIthub:

Macbook

Roman Gladkov — Tue, 05 Jun 2012 23:17:00 +0400

I bought Macbook Air 13", hey chiks where you?

10 Erlang one liners to impress your friends

Roman Gladkov — Mon, 28 May 2012 21:20:00 +0400

1. Multiple Each Item in a List by 2

[X * 2 || X <- lists:seq(1, 11)].

2. Sum a List of Numbers

lists:sum(lists:seq(1, 1001)).

3.Verify if Exists in a String

Wordslist = ["scala", "akka", "play framework", "sbt", "typesafe"].
Tweet = "This is an example tweet talking about …

Virtualenv, Python, Jenkins links

Roman Gladkov — Tue, 24 Apr 2012 23:22:00 +0400

Selenium, Python, TinyMCE

Roman Gladkov — Tue, 10 Apr 2012 16:10:00 +0400

КОСТЫЛИ-КОСТЫЛИКИ

чтобы записать текст в TinyMCE редактор, нужно найти его фрейм, перейти в него, выполнив js код записать во внутрь элемента текст, перейти обратно в главный фрейм и только тогда продолжать работу

lead, body = browser.find_elements_by_tag_name('iframe')
browser.switch_to_frame(lead)
browser.execute_script('document.getElementsByTagName("p")[0].innerHTML="test lead";')
browser …

Russian Python videos

Roman Gladkov — Sun, 26 Feb 2012 12:01:00 +0400

NEW

Roman Gladkov — Thu, 16 Feb 2012 14:03:00 +0400

New year. New place. New job. New life

Soon

Roman Gladkov — Sun, 22 Jan 2012 23:30:00 +0400

5 days left for to relocation to Moscow

Identi.ca

Roman Gladkov — Sun, 22 Jan 2012 03:18:00 +0400

I'm registered on http://identi.ca/d1ffuz0r, where I will improving my English with native speakers.

Linux rule

Roman Gladkov — Thu, 12 Jan 2012 23:23:00 +0400

Article: "On the console, for complete dummies"

Chapter I.

Do not go on the console.

end

Contents:

Chapter I. ........... a

English

Roman Gladkov — Wed, 16 Nov 2011 23:09:00 +0400

I started active learning english language. Good luck me :)

cheatsheets

Roman Gladkov — Sun, 02 Oct 2011 08:43:00 +0400

cheatsheets для дизайнеров и веб девелоперов http://spyrestudios.com/mega-collection-of-cheatsheets-for-designer-developers/

тестовый почтовый сервер python

Roman Gladkov — Sat, 01 Oct 2011 02:42:00 +0400

тестовый почтовый сервер

python -m smtpd -n -c DebuggingServer localhost:1025

black-bsd mitoll

Roman Gladkov — Sat, 01 Oct 2011 02:37:00 +0400

<аццкий запил на гитарах>
Демоны!
Демоны!
Демоны!
Демоны упали в  Кору!
<проигрыш, потом повторить еще 2 раза>
Не ставь  Сендмээээйл! Еееее...!
<конец>

qdbus+gajim

Roman Gladkov — Sat, 01 Oct 2011 02:37:00 +0400

статус aкка jabber.ru

qdbus org.gajim.dbus /org/gajim/dbus/RemoteObject org.gajim.dbus.RemoteInterface.get_status_message jabber.ru

количество непрочитаных сообщений

qdbus org.gajim.dbus /org/gajim/dbus/RemoteObject org.gajim.dbus.RemoteInterface.get_unread_msgs_number

ports

Roman Gladkov — Sat, 01 Oct 2011 02:34:00 +0400

21 порт => FTP
22 порт => SSH
23 порт => Telnet
25 порт => Порт SMTP отвечающий за передачу почты
43 порт => Порт клиента WHOIS
53 порт => Система преобразования имени хоста
80 порт => Стандартный порт HTTP Веб севрера
110 порт => Порт POP отвечает за приём почты
995 порт => Защищённое SSL/TLS соединение POP …