davidbgk

from django import forms

class EmptyChoiceField(forms.ChoiceField):
    def __init__(self, choices=(), empty_label=None, required=True, widget=None, label=None,
                 initial=None, help_text=None, *args, **kwargs):

        # prepend an empty label if it exists (and field is not required!)
        if not required and empty_label is not None:
            choices = tuple([(u'', empty_label)] + list(choices))

pklaus

#!/usr/bin/env python2

"""
    Other Repositories of python-ping
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    * https://github.com/l4m3rx/python-ping      supports Python2 and Python3
    * https://bitbucket.org/delroth/python-ping

mtigas

Client-side SSL

For excessively paranoid client authentication.

---

Updated Apr 5 2019:

because this is a gist from 2011 that people stumble into and maybe you should AES instead of 3DES in the year of our lord 2019.

some other notes:

ehamberg

#include <mpi.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

#define SIZE 4

int main(int argc, char *argv[])
{
    int rank, size; // for storing this process' rank, and the number of processes

derEremit

#!/usr/bin/env bash
# Generates gource video (h.264) out of multiple repositories.
# Pass the repositories in command line arguments.
# Example:
# <this.sh> /path/to/repo1 /path/to/repo2

RESOLUTION="1600x1080"
outfile="gource.mp4"

i=0

maskit

(function () {
	WebSocket.prototype._send = WebSocket.prototype.send;
	WebSocket.prototype.send = function (data) {
		this._send(data);
		this.addEventListener('message', function (msg) {
			console.log('>> ' + msg.data);
		}, false);
		this.send = function (data) {
			this._send(data);
			console.log("<< " + data);

baoshan

# yum list \*openssl\*
yum install -y openssl098e
yum install -y zlib
ln -s /usr/lib64/libssl.so.0.9.8e /usr/lib64/libssl.so.0.9.8
ln -s /usr/lib64/libcrypto.so.0.9.8e /usr/lib64/libcrypto.so.0.9.8
ln -s /lib64/libbz2.so.1 /lib64/libbz2.so.1.0
wget https://bitbucket.org/pypy/pypy/downloads/pypy-1.8-linux64.tar.bz2
tar -xf pypy-1.8-linux64.tar.bz2
cp -r pypy-1.8 /opt
ln -s /opt/pypy-1.8/bin/pypy /usr/local/bin

srs81

#!/usr/bin/python
#
# Auto-start and stop EC2 instances
#
import boto, datetime, sys
from time import gmtime, strftime, sleep

# AWS credentials
aws_key = "AKIAxxx"
aws_secret = "abcd"

vi

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ecc.h"

/* Reed-solomon command-line tool by Vitaly "_Vi" Shukela; 2012 */

/*
  Usage:
    1. Download http://sourceforge.net/projects/rscode/

kenpower

const double PI=3.14159265358979323846;
double r=100;
int sides=10;
		
glBegin(GL_LINE_STRIP);
for(int i=0;i<sides;i++){
	double angle=i*2*PI/sides;
	glVertex2d(400+r*cos(angle),300+r*sin(angle));	
}
glEnd();