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Alexey Khuraskin akhuraskin

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@tommycarpi
tommycarpi / ipython_notebook+spark.md
Last active September 3, 2021 10:14
Link Apache Spark with IPython Notebook

How to link Apache Spark 1.6.0 with IPython notebook (Mac OS X)

Tested with

Python 2.7, OS X 10.11.3 El Capitan, Apache Spark 1.6.0 & Hadoop 2.6

Download Apache Spark & Build it

Download Apache Spark and build it or download the pre-built version.

@vitorbritto
vitorbritto / rm_mysql.md
Last active April 16, 2026 20:35
Remove MySQL completely from Mac OSX

Remove MySQL completely

  1. Open the Terminal

  2. Use mysqldump to backup your databases

  3. Check for MySQL processes with: ps -ax | grep mysql

  4. Stop and kill any MySQL processes

  5. Analyze MySQL on HomeBrew:

    brew remove mysql
@brandonsimpson
brandonsimpson / osx_uninstall_mysql_install_mariadb_homebrew.md
Last active June 12, 2024 16:00
OSX How To: Uninstall native MySQL and install MariaDB via Homebrew

OSX How To: Uninstall native MySQL and install MariaDB via Homebrew

This is a short overview on how to completely remove any old mysql server installs in OSX and upgrade to MariaDB without conflicts. Things can get a bit weird when you have various old installs of MySQL server floating around, and utilizing homebrew to install and upgrade MariaDB as a drop in replacement for MySQL has worked well, especially if you're used to managing MySQL installs via yum in linux.

First: Backup Your Data!

Backup all of your current databases with mysqldump

This isn't a tutorial on backups, and there are many ways to do it. You should know how to backup your data anyway. For this example, we'll do a full backup of our InnoDB databases.

@bsweger
bsweger / useful_pandas_snippets.md
Last active March 4, 2026 19:59
Useful Pandas Snippets

Useful Pandas Snippets

A personal diary of DataFrame munging over the years.

Data Types and Conversion

Convert Series datatype to numeric (will error if column has non-numeric values)
(h/t @makmanalp)

@eribeiro
eribeiro / MapBasic.scala
Last active July 25, 2021 05:41
How to do a foldLeft with a Map in Scala, plus basic stuff.
val list = (1 to 10).toList
// imutable map
val map1 = list.foldLeft(Map.empty[Int,String])( (map, value) => map + (value -> value.toString) )
// this is equivalent to
val map1 = list.foldLeft(Map.empty[Int,String])( (map, value) => map + ((value, value.toString)) )
// imutable map with more complex value (note the extra parenthesis)
@RWJMurphy
RWJMurphy / filerotator.py
Last active February 1, 2023 04:02
Python class and utility for file rotation. Configurable daily, weekly and monthly retention; can use hard links to save space; supports `argparse` config files.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# vim: ft=python ts=4 sw=4 expandtab
#
# Copyright (c) 2013 Reed Kraft-Murphy <reed@reedmurphy.net>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell