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@magopian
magopian / aiohttp + aiopg.py
Last active October 4, 2019 08:48
experiments with python asyncio (all three are roughly the same speed as the werkzeug+pg version, as it's CPU bound, not IO bound: asyncio doesn't help in such cases)
"""start with:
gunicorn utilery.views_aiohttp_aiopg:app -b 0.0.0.0:3579 -w 4 -k aiohttp.worker.GunicornWebWorker"""
import asyncio
import json
import math
import time
import psycopg2
import psycopg2.extras

Start weechat if you haven't already:

$ weechat

open up browser and go to: https://irc.gitter.im/ retrieve your /PASS

In weecaht run (thanks to raine):

@graydon
graydon / country-bounding-boxes.py
Created April 23, 2014 00:03
country bounding boxes
# extracted from http//www.naturalearthdata.com/download/110m/cultural/ne_110m_admin_0_countries.zip
# under public domain terms
country_bounding_boxes = {
'AF': ('Afghanistan', (60.5284298033, 29.318572496, 75.1580277851, 38.4862816432)),
'AO': ('Angola', (11.6400960629, -17.9306364885, 24.0799052263, -4.43802336998)),
'AL': ('Albania', (19.3044861183, 39.624997667, 21.0200403175, 42.6882473822)),
'AE': ('United Arab Emirates', (51.5795186705, 22.4969475367, 56.3968473651, 26.055464179)),
'AR': ('Argentina', (-73.4154357571, -55.25, -53.628348965, -21.8323104794)),
'AM': ('Armenia', (43.5827458026, 38.7412014837, 46.5057198423, 41.2481285671)),
@cquest
cquest / hillshade-transparent-overlay.md
Last active July 5, 2022 06:30
transparent hillshade cooking guide using gdal

Ingredients

  • a decent DEM
  • gdal
  • some computer

compute grayscale hillshade using gdaldem

gdaldem hillshade -compute_edges your_dem_file hillshade.tif

color-ramp to compute transparency (alpha channel)

In another bowl, prepare the following shade.ramp file:

@dropwhile
dropwhile / install-setup.txt
Last active February 28, 2020 05:43
python serialization speed comparison
virtualenv --no-site-packages hodor
hodor/bin/pip install simplejson ujson cbor tnetstring msgpack-python
curl -s 'http://www.json-generator.com/api/json/get/cvfsLVmKiG?indent=2' > test.json
hodor/bin/python shootout.py