majgis

# Taken from http://taketwoprogramming.blogspot.com/2009/06/subclassing-jsonencoder-and-jsondecoder.html

class DateTimeAwareJSONEncoder(JSONEncoder):
  """ 
  Converts a python object, where datetime and timedelta objects are converted
  into objects that can be decoded using the DateTimeAwareJSONDecoder.
  """
  def default(self, obj):
    if isinstance(obj, datetime):
      return {

btbytes

 brew install openvpn 
==> Installing openvpn dependency: lzo
==> Downloading http://www.oberhumer.com/opensource/lzo/download/lzo-2.06.tar.gz
######################################################################## 100.0%
==> ./configure --prefix=/usr/local/Cellar/lzo/2.06 --enable-shared
==> make
==> make check
==> make install
/usr/local/Cellar/lzo/2.06: 27 files, 544K, built in 42 seconds
==> Installing openvpn

terryjray

RAILS_ENV=production rake db:setup
# produces the error below.....hmmm.....it's a no-worky
psql:/yourprojectpath/yourproject/db/structure.sql:29: ERROR:  could not open extension control file "/usr/share/postgresql/9.1/extension/hstore.control": No such file or directory

# hstore postgresql extension needs to be installed, so....
sudo apt-get install postgresql-contrib

# now your extension should be available to enable so log in with psql
psql -d yourproject_production -U yourdbuser -W

atoponce

Convert any binary to PNG

This walk through comes from @GalacticFurball who tweeted two images representing the youtube_dl source code as of 2020-09-20. They mentioned later in the thread that they struggled converting the gzip-compressed tarball of the source code with Imagemagick to a PNG, so they ended up using a 3rd party website to do the work. This Gist will show you how to do it cleanly and exactly.

Instructions

If you would like to convert any non-image binary into PNG, Imagemagick makes this trivial. I will be executing the commands on a Debian Linux system, so you may need to adjust the commands for BSD, macOS, or Windows as necessary.

yevgenko

!-------------------------------------------------------------------------------
! Xft settings
!-------------------------------------------------------------------------------

Xft.dpi:                    96
Xft.antialias:              false
Xft.rgba:                   rgb
Xft.hinting:                true
Xft.hintstyle:              hintslight

whatnickcodes

// Create Base64 Object
var Base64={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",encode:function(e){var t="";var n,r,i,s,o,u,a;var f=0;e=Base64._utf8_encode(e);while(f<e.length){n=e.charCodeAt(f++);r=e.charCodeAt(f++);i=e.charCodeAt(f++);s=n>>2;o=(n&3)<<4|r>>4;u=(r&15)<<2|i>>6;a=i&63;if(isNaN(r)){u=a=64}else if(isNaN(i)){a=64}t=t+this._keyStr.charAt(s)+this._keyStr.charAt(o)+this._keyStr.charAt(u)+this._keyStr.charAt(a)}return t},decode:function(e){var t="";var n,r,i;var s,o,u,a;var f=0;e=e.replace(/[^A-Za-z0-9\+\/\=]/g,"");while(f<e.length){s=this._keyStr.indexOf(e.charAt(f++));o=this._keyStr.indexOf(e.charAt(f++));u=this._keyStr.indexOf(e.charAt(f++));a=this._keyStr.indexOf(e.charAt(f++));n=s<<2|o>>4;r=(o&15)<<4|u>>2;i=(u&3)<<6|a;t=t+String.fromCharCode(n);if(u!=64){t=t+String.fromCharCode(r)}if(a!=64){t=t+String.fromCharCode(i)}}t=Base64._utf8_decode(t);return t},_utf8_encode:function(e){e=e.replace(/\r\n/g,"\n");var t="";for(var n=0;n<e.length;n++){var r=e.charCodeAt(n);if(r

fire

Experimental 2015-04-25

# Create a usb disk with Elementary OS and Startup Disk Creator
# Boot it
sudo -i
apt-add-repository --yes ppa:zfs-native/stable
apt-get update
apt-get install --yes spl-dkms zfs-dkms ubuntu-zfs    

setup zfs

philsturgeon

Never Expose DB Results Directly

1. If you rename a field, then your users are fucked. Convert with a hardcoded array structure.
2. Most DB drivers [for PHP] will show integers as numeric strings and false as "0", so you want to typecast them.
3. Unless you're using an ORM with "hidden" functionality, people will see passwords, salts and all sorts of fancy codes. If you add one and forget to put it in your $hidden array then OOPS!

Use the URI sparingly, and correctly

1. Use the query string for paired params instead of /users/id/5/active/true. Your API does not need to be SEO optimised.
2. ?format=xml is stupid, use an Accept: application/xml header. I added this to the CodeIgniter Rest Server once for lazy people, and now people think it's a thing. It's not.

paulhandy

https://serverfault.com/questions/340837/how-to-delete-all-but-last-n-zfs-snapshots#340846

You may find something like this a little simpler

zfs list -t snapshot -o name | grep ^tank@Auto | tac | tail -n +16 | xargs -n 1 zfs destroy -r

    output the list of snapshot (names only) with zfs list -t snaphot -o name
    filter to keep only the ones that match tank@Auto with grep ^tank@Auto
    reverse the list (previously sorted from oldest to newest) with tac
    limit output to the 16th oldest result and following with tail -n +16

jaycosaur

from typing import Type, Set, Any
from multiprocessing import Queue
import asyncio

class MulticastQueue:
    def __init__(self, queue_constructor: Type[Queue] = Queue) -> None:
        self.subscribers: Set[Queue] = set()
        self.constructor = queue_constructor

    def register(self) -> Queue: