bgoonz

A Quick Guide to Big-O Notation, Memoization, Tabulation, and Sorting Algorithms by Example

Curating Complexity: A Guide to Big-O Notation

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A Quick Guide to Big-O Notation, Memoization, Tabulation, and Sorting Algorithms by Example

Curating Complexity: A Guide to Big-O Notation

diegoquintanav

I want docker to stop using my root partition for storing docker containers, and use a different partition instead, e.g. /home

These steps worked for me:

1. Stop all containers sudo docker stop $(docker ps -a -q)
2. Stop docker sudo service docker stop
3. Copy docker directory cp -r /var/lib/docker/* /home/docker/
4. Unmount all old docker overlays umount -f /var/lib/docker/overlay/ and umount -f /var/lib/docker/containers/*/mounts/shm
5. Add or update /etc/docker/daemon.json with

taiwotman

from __future__ import absolute_import
from flask import current_app
from py2neo import Graph
import os

username = os.environ.get('NEO4J_USERNAME')
password = os.environ.get('NEO4J_PASSWORD')

class Py2Neo(object):
    def __init__(self, app=None):

rkaneko

from typing import Any, Dict, List
import s3fs
from pyarrow import Table, parquet as pq
from pandas import DataFrame, Series

def to_df(data: List[Dict[str, Any]]) -> DataFrame:                                                                                                         
    df = DataFrame()
    for item in data:
        indexes = []
        values = []

d1egoaz

If you want to learn Scala, I’d suggest:

• Install IntelliJ + Scala Plugin
• Don’t do the Coursera courses yet.
• Don’t do the “red book” Functional Programming in Scala yet.
• Do: http://underscore.io/books/
  • Essential Scala
  • Essential Play
  • Essential Slick
• Do Scala for the Impatient: https://www.amazon.com/Scala-Impatient-Cay-S-Horstmann/dp/0321774094
• The Neophyte’s Guide to Scala http://danielwestheide.com/scala/neophytes.html

deehzee

Module autoreload

To auto-reload modules in jupyter notebook (so that changes in files *.py doesn't require manual reloading):

# for auto-reloading external modules
# see http://stackoverflow.com/questions/1907993/autoreload-of-modules-in-ipython
%load_ext autoreload
%autoreload 2

mwenger1

Query Syntax

SELECT now() - query_start as "runtime", usename, datname, waiting, state, query
  FROM  pg_stat_activity
  WHERE now() - query_start > '2 minutes'::interval
 ORDER BY runtime DESC;

Migrations

first087

How to use script

0. Run Docker Toolbox from shortcut Docker Quickstart Terminal
1. Shutdown boot2docker docker-machine stop
2. Open VirtualBox and goto Settings of default machine
3. At Shared Folders menu, click + icon, Select folder path to drive D: and set folder name is d, checked all options
4. Copy attach-drive-d.sh script to Docker Toolbox folder (C:\Program Files\Docker Toolbox)
5. Edit start.sh add command sh attach-drive-d.sh before finalize step
6. Run Docker Toolbox from shortcut Docker Quickstart Terminal again
7. Have fun!!!

ivanleoncz

#/usr/bin/python3
""" Demonstration of logging feature for a Flask App. """

from logging.handlers import RotatingFileHandler
from flask import Flask, request, jsonify
from time import strftime

__author__ = "@ivanleoncz"

import logging

barseghyanartur

# *****************************************************
# ***************** Install xapian Core ***************
# *****************************************************

sudo apt-get install zlib1g-dev
sudo apt-get install g++
sudo apt-get install uuid-dev

curl -O http://oligarchy.co.uk/xapian/1.2.18/xapian-core-1.2.18.tar.xz
curl -O http://oligarchy.co.uk/xapian/1.2.18/xapian-bindings-1.2.18.tar.xz