aaugustin

from django.contrib import admin


class ReadOnlyModelAdmin(admin.ModelAdmin):
    """
    ModelAdmin class that prevents modifications through the admin.

    The changelist and the detail view work, but a 403 is returned
    if one actually tries to edit an object.

jeromer

# LICENSE: public domain

def calculate_initial_compass_bearing(pointA, pointB):
    """
    Calculates the bearing between two points.

    The formulae used is the following:
        θ = atan2(sin(Δlong).cos(lat2),
                  cos(lat1).sin(lat2) − sin(lat1).cos(lat2).cos(Δlong))

yoavram

# pdfx usage: http://pdfx.cs.man.ac.uk/usage
# requests docs: http://docs.python-requests.org/en/latest/user/quickstart/#post-a-multipart-encoded-file
import requests # get it from http://python-requests.org or do 'pip install requests'

url = "http://pdfx.cs.man.ac.uk"

def pypdfx(filename):
  '''
	Filename is a name of a pdf file WITHOUT the extension
	The function will print messages, including the status code,

frxstrem

'''
Establish a socket connection through an HTTP proxy.

Author: Fredrik Østrem <frx.apps@gmail.com>

License:
  Copyright 2013 Fredrik Østrem

  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
  documentation files (the "Software"), to deal in the Software without restriction, including without

jareware

⇐ back to the gist-blog at jrw.fi

Advanced SCSS

Or, 16 cool things you may not have known your stylesheets could do. I'd rather have kept it to a nice round number like 10, but they just kept coming. Sorry.

I've been using SCSS/SASS for most of my styling work since 2009, and I'm a huge fan of Compass (by the great @chriseppstein). It really helped many of us through the darkest cross-browser crap. Even though browsers are increasingly playing nice with CSS, another problem has become very topical: managing the complexity in stylesheets as our in-browser apps get larger and larger. SCSS is an indispensable tool for dealing with this.

This isn't an introduction to the language by a long shot; many things probably won't make sense unless you have some SCSS under your belt already. That said, if you're not yet comfy with the basics, check out the aweso

JuniorPolegato

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import httplib
import re
import sys
import base64
import subprocess
import urllib
import lxml.etree

pramsey

Parallel PostGIS

PostgreSQL Parallel Sequence Scan was committed into the git master a couple weeks ago, and initial tests have been promising.

• Robert Haas: Parallel Sequential Scan is Committed!
• Amit Kapila: Parallel Sequential Scans in play

So far, the parallel functionality is only very limited, just sequence scans, but that's still enough to test out against basic PostGIS functions.

Setup

macournoyer

$ python xor.py
Training:
  Epoch   0   MSE: 1.765
  Epoch 100   MSE: 0.015
  Epoch 200   MSE: 0.005
  * Target MSE reached *
Evaluating:
  1 XOR 0 = 1 ( 0.904)   Error: 0.096
  0 XOR 1 = 1 ( 0.908)   Error: 0.092
  1 XOR 1 = 0 (-0.008)   Error: 0.008

nepsilon

Display a cool banner when you log in with SSH

SSH gives us a way to displaya custom welcome message when a user log in. You can make this message dynamic thanks to update-motd, but here we’ll talk about the SSH built-in feature.

Here is how to do in 3 steps:

Put your message in /etc/issue.net:

$ vim /etc/issue.net

nepsilon

3 Python modules you can use directly on the CLI

1. Start a local webserver to serve the file of your current directory on the LAN:

# Python version 2.x:
python -m SimpleHTTPServer 
# Python version 3.x:
python3 -m http.server