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Dan Tanham dtanham

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@dtanham
dtanham / random_string.py
Created October 22, 2017 17:47
Generate a random string using lowercase ASCII characters and digits
import random, string
def random_string(length):
''.join(random.choice(string.ascii_lowercase+string.digits) for i in range(length))
@dtanham
dtanham / keybase.md
Created October 4, 2017 18:38

Keybase proof

I hereby claim:

  • I am dtanham on github.
  • I am dtanham (https://keybase.io/dtanham) on keybase.
  • I have a public key ASBJ20ifsSwJ6VQ1id8WU6QXU6RkIC5rO8FAArGkHe_NFAo

To claim this, I am signing this object:

@dtanham
dtanham / loess.py
Created November 8, 2015 12:04
LOESS implementation in Python - courtesy of Phillip K Janert's O'Reilly book Data Analysis with Open Source Tools (aka the bible)
from pylab import *
# # x: location; h: bandwidth; xp, yp: data points (vectors)
def loess( x, h, xp, yp):
w = exp( -0.5*( ((x-xp)/h)**2)/sqrt(2*pi*h**2) )
b = sum(w*xp)*sum(w*yp) - sum(w)*sum(w*xp*yp)
b /= sum(w*xp)**2 - sum(w)*sum(w*xp**2)
a = ( sum(w*yp) - b*sum(w*xp) )/sum(w)
return a + b*x
@dtanham
dtanham / bootstrap-cdn.html
Created June 30, 2015 21:56
Exactly like the getbootstrap.com basic template, but with CDN hosted css and js to make getting started even faster.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
@dtanham
dtanham / flask-mongo_requirements.txt
Created June 30, 2015 19:30
Basic PIP requirements file for quickstarting a Flask app
Flask==0.10.1
Jinja2==2.7.3
MarkupSafe==0.23
Werkzeug==0.10.4
itsdangerous==0.24
mongoengine==0.10.0
pymongo==3.0.2
wsgiref==0.1.2
@dtanham
dtanham / https-only.js
Created March 2, 2015 20:41
JS Redirect to HTTPS
if (window.location.href.indexOf("https://") != 0 && window.location.href.indexOf("http://localhost") == -1) {
window.location.href = window.location.href.replace("http://", "https://");
}
@dtanham
dtanham / twohundred.py
Created September 26, 2014 23:49
200 OK Server
import BaseHTTPServer
import SocketServer
import socket
import threading
import functools
import contextlib
code, content = 200, "Ok"
class Handler(BaseHTTPServer.BaseHTTPRequestHandler):
def do_GET(self):
@dtanham
dtanham / persistent_tcpdump.sh
Last active August 29, 2015 14:06
Tcpdump restart
#!/bin/sh
#
# Startup script for persistent tcpdump
#
PCAP=/data/tcpdump/tcpdump.pcap
SIZE=100
COUNT=20
PIDFILE=/var/run/tcpdump
@dtanham
dtanham / sign_python.sh
Created May 10, 2014 10:18
Self-signing python to prevent OS X application firewall popping up
# Thanks to: http://darklaunch.com/2014/02/02/fix-do-you-want-the-application-python-to-accept-incoming-network-connections
. venv/bin/activate
codesign -s "Personae Dev Cert" -f $(which python)
@dtanham
dtanham / lastday.py
Created May 6, 2014 20:39
Last day of month (30, 31, 28, 29)
"""Calculates the end date for any given datetime object"""
import calendar
def last_day(year, month):
return calendar.monthrange(year, month)[1]