datagrok

This article is now published on my website: Prefer Subshells for Context.

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

iamatypeofwalrus

What

Roll your own iPython Notebook server with Amazon Web Services (EC2) using their Free Tier.

What are we using? What do you need?

• An active AWS account. First time sign-ups are eligible for the free tier for a year
• One Micro Tier EC2 Instance
• With AWS we will use the stock Ubuntu Server AMI and customize it.
• Anaconda for Python.
• Coffee/Beer/Time

Halama

"""This module is intended to help interactions
with Goodata Keboola storage.

It creates and performs requests and parse response back
to handler which called it.

"""
import json
import logging as log
import time

sloria

The Best of the Best Practices (BOBP) Guide for Python

A "Best of the Best Practices" (BOBP) guide to developing in Python.

In General

Values

• "Build tools for others that you want to be built for you." - Kenneth Reitz
• "Simplicity is alway better than functionality." - Pieter Hintjens

garbados

1. There are two and only two genders.
2. Okay, then there are two and only two biological genders.
3. Gender is determined solely by biology.
4. Okay, it’s mostly determined by biology, right?
5. Please tell me it’s determined by DNA.
6. Gender can be reliably determined through visual means. After all, no man would ever wear a burka.
7. Once gender is set, it never changes.
8. Even if the gender can change, it will only change from the one value to the other value.
9. Only one gender can be “active” at the same time.
10. We’re tracking gender now, so we’ve always tracked it.

perrygeo

TomAugspurger

# see also https://github.com/wrobstory/pgshift

import gzip
from io import StringIO, BytesIO
from functools import wraps

import boto
from sqlalchemy import MetaData
from pandas import DataFrame
from pandas.io.sql import SQLTable, pandasSQL_builder

davidread

1. Register for Microsoft account at https://signup.live.com/signup
2. Email verification - click link (logs you in)
3. Register on Azure Data Market at https://datamarket.azure.com/register
4. Go to: https://datamarket.azure.com/dataset/datagovuk/metofficeweatheropendata click 'Sign up' then 'agree', then 'sign up'.

Use Web i/f to download CSV:
At: https://datamarket.azure.com/dataset/explore/0f2cba12-e5cf-4c6d-83c9-83114d44387a click 'Explore', 'Three Hourly Forecast' and 'Download Excel (CSV)'

or by API:
Go to: https://datamarket.azure.com/account for account key

NoraCodes

################################################################
# pronouns.py - Leonora Tindall     
# 
# An example of proper handling of pronoun replacement in
#   Python, including a selection menu. This handles only
#   singular pronouns, providing a simple .format() based
#   interface for replacing pronouns in prose. 
# This script is limited to English, but a similar technique
#   should work for most languages using a similar grammar.
################################################################