• db2twitter 0.1 released build and send tweets with values from a database first public release official documentation
  
• retweet 0.4 released store already retweeted tweets ids in a sqlite3 database official documentation

• Update as NMU python-tweepy to last upstream version as a dedicated branch on the python-retweet git repository. The official maintainer took it to update the main branch and release the news version of python-tweepy. This package was a blocker for packaging db2twitter and retweet, which both need python3 version of the tweepy library.
• Create the Debian package of db2twitter now in NEW queue
• Create the Debian package of retweet now in NEW queue

• Did significant work on a healthcare-related project to be released under a free-software license
• Fixed an issue in dh-virtualenv where initscripts could be started before the Virtualenv has completely configured
• Added support to the mailvelope OpenPGP browser extension to show the key ID in the "Sign message with key" dialog
• Added Django 1.8 support to django-setuptest
• Added the ability for my tickle-me-email Getting Things Done toolbox to inject emails into "draft" folders, and subsequently added attachment support
• Fixed Strava Enhancement Suite's calculation of repeated segments to also include "hidden segments"
• Corrected the output filename calculation in Legofy, a program makes an image look as if it was built out of Lego
• Added per-activity rate limiting to my stravabot IRC bot
• Worked with Tyler Garner to add support in django-slack for reporting exceptions as well as with Bastian Hoyer towards Python 3 support
• Worked with freeyoung to merge support in dns-filter for "stripped" A records as well as to add more configuration options
• Uploaded all of my Python and Django packages to Python Package Index
• Updated my email address in Django's AUTHORS file to point to my typical Django-related email address
• Blogged about how to migrate away from add_to_builtins for Django 1.9

R> library(littler)
The littler package provides 'r' as a binary.
You could link to the 'r' binary installed in
'/usr/local/lib/R/site-library/littler/bin/r' from
'/usr/local/bin' in order to use 'r' for scripting.
R> 

Changes in littler version 0.3.0 (2015-10-29)

• Changes in build system
  • First CRAN Release as R package following nine years of source releases
  • Script configure, src/Makevars.in and remainder of build system rewritten to take advantage of the R package build infrastructure
  • Reproducible builds are better supported as the (changing) compilation timestamps etc are only inserted for 'verbose builds' directly off the git repo, but not for Debian (or CRAN) builds off the release tarballs
• Changes in littler functionality
  • Also source $R_HOME/etc/Rprofile.site and ~/.Rprofile if present
• Changes in littler documentation
  • Added new vignette with examples

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

> import System.IO
> import Control.Concurrent.Async
> putStrLn (repeat 'A')  concurrently  putStrLn (repeat 'B')
BABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABA
BABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABA
...

> putStrLn "washed the car"  concurrently  putStrLn "walked the dog"
walwkaesdh etdh et hdeo gc
ar

outputConcurrent :: String -> IO ()
    
createProcessConcurrent :: CreateProcess -> IO whatever

import Control.Concurrent.Async
import System.Console.Concurrent
import System.Process
main = withConcurrentOutput $
    outputConcurrent "washed the car\n"
         concurrently 
    createProcessConcurrent (proc "ls" [])
         concurrently 
    outputConcurrent "walked the dog\n"

$ ./demo
washed the car
walked the dog
Maildir/  bin/  doc/  html/  lib/  mail/  mnt/  src/  tmp/

• It has to do buffering of the output.
• There can be any quantity of output, but program memory use should be reasonably small. Solved by buffering up to 1 mb of output in RAM, and writing excess buffer to temp files.
• Falling off the end of the program is complicated; there can be buffered output to flush and it may have to wait for some processes to finish running etc.
• The locking was tough to get right! I could not have managed to write it correctly without STM.

Whilst upgrading various projects to Django 1.9, I found myself repeatedly searching for the following code snippet so I offer it below as a more permanent note for myself and to aid others. If you used django.template.base.add_to_builtins to avoid tedious and unsightly % load module % blocks in your template files, under Django 1.9 you will get the following traceback:

Traceback (most recent call last):
  File "django/core/management/__init__.py", line 324, in execute
    django.setup()
  File "django/__init__.py", line 18, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "django/apps/registry.py", line 108, in populate
    app_config.import_models(all_models)
  File "django/apps/config.py", line 202, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "myproject/myproject/utils/models.py", line 1, in <module>
    from django.template.base import add_to_builtins
ImportError: cannot import name add_to_builtins

TEMPLATES = [ 
    'BACKEND': 'django.template.backends.django.DjangoTemplates',
    'DIRS': [
        os.path.join(BASE_DIR, 'templates'),
    ],
    'APP_DIRS': True,
    'OPTIONS':  
        'context_processors': [
            'django.template.context_processors.debug',
            'django.template.context_processors.request',
            'django.contrib.auth.context_processors.auth',
            'django.contrib.messages.context_processors.messages',
            'myproject.utils.context_processors.settings_context',
        ],
        'builtins': [
            'django.contrib.staticfiles.templatetags.staticfiles',
        ],
     ,
 ]

• Github of db2twitter (star it if you like ;)
• Official documentation on readthedocs

dbhost=localhost
database=mytuxjobs
dbuser=mytuxjobs
dbpass=V3rYs3cr3t!
dbtables=jobs,
jobs_rows=title,id

tweet=MyTux hires a   https://www.mytux.fr/jobs/ "

--
-- This method returns the text which is displayed when a maildir is
-- to be show in maildir-mode.
--
function Maildir.to_string(self)
   local total  = self:total_messages()
   local unread = self:unread_messages()
   local path   = self:path()
   local output = string.format( "[%05d / %05d] - %s", unread, total, path );
   if ( unread > 0 ) then
      output = "$[RED]" .. output
   end
   if ( string.find( output, "Automated." ) ) then
      output = strip_colour( output )
      output = "$[YELLOW]" .. output
   end
   return output
end

• https://github.com/lumail/lumail2/

echo 1   sudo tee /proc/sys/kernel/unprivileged_userns_clone > /dev/null

sudo sysctl -w kernel.unprivileged_userns_clone=1

lxc-usernsexec [opts] -- unshare [opts] -- COMMAND

• as a project for me to learn how unprivileged namespaces work
• written in Perl which means:
  • architecture independent (same executable on any architecture)
  • easily inspectable by other curious minds
• tons of code comments to let others understand how things work
• no need to install the lxc package in a minimal environment (perl itself might not be called minimal either but is present in every Debian installation)
• not suffering from being unable to mount proc

$ mkdir -p /tmp/buildroot/proc
$ ./user-unshare --mount-proc=/tmp/buildroot/proc --ipc --pid --net \
    --uts --mount --fork -- sh -c 'ip link set lo up && ip addr && \
    hostname hoothoot-chroot && \
    tar -C /tmp/buildroot -xf /srv/chroot/unstable-amd64.tar.gz; \
    /usr/sbin/chroot /tmp/buildroot /sbin/runuser -s /bin/bash - josch && \
    umount /tmp/buildroot/proc && rm -rf /tmp/buildroot'
(unstable-amd64-sbuild)josch@hoothoot-chroot:/$ whoami
josch
(unstable-amd64-sbuild)josch@hoothoot-chroot:/$ hostname
hoothoot-chroot
(unstable-amd64-sbuild)josch@hoothoot-chroot:/$ ls -lha /proc   head
total 0
dr-xr-xr-x 218 nobody nogroup    0 Oct 25 19:06 .
drwxr-xr-x  22 root   root     440 Oct  1 08:42 ..
dr-xr-xr-x   9 root   root       0 Oct 25 19:06 1
dr-xr-xr-x   9 josch  josch      0 Oct 25 19:06 15
dr-xr-xr-x   9 josch  josch      0 Oct 25 19:06 16
dr-xr-xr-x   9 root   root       0 Oct 25 19:06 7
dr-xr-xr-x   9 josch  josch      0 Oct 25 19:06 8
dr-xr-xr-x   4 nobody nogroup    0 Oct 25 19:06 acpi
dr-xr-xr-x   6 nobody nogroup    0 Oct 25 19:06 asound

#!/bin/sh

set -exu

# I'm using /tmp because I have it mounted as a tmpfs
rootdir="/tmp/buildroot"

# bring the loopback interface up
ip link set lo up

# show that the loopback interface is really up
ip addr

# make use of the UTS namespace being unshared
hostname hoothoot-chroot

# extract the chroot tarball. This must be done inside the user namespace for
# the file permissions to be correct.
#
# tar will fail to call mknod and to change the permissions of /proc but we are
# ignoring that
tar -C "$rootdir" -xf /srv/chroot/unstable-amd64.tar.gz   true

# run chroot and inside, immediately drop permissions to the user "josch" and
# start an interactive shell
/usr/sbin/chroot "$rootdir" /sbin/runuser -s /bin/bash - josch

# unmount /proc and remove the temporary directory
umount "$rootdir/proc"
rm -rf "$rootdir"

$ mkdir -p /tmp/buildroot/proc
$ ./user-unshare --mount-proc=/tmp/buildroot/proc --ipc --pid --net --uts --mount --fork -- ./chroot.sh

$ lxc-usernsexec -m b:0:1000:1 -m b:1:558752:1 -- unshare --mount-proc=/tmp/buildroot/proc --ipc --pid --net --uts --mount --fork -- ./chroot.sh
unshare: mount /tmp/buildroot/proc failed: Invalid argument

R> library(rfoaas)
R> dosomething("Fix", "function", "testthat")
[1] "Fix the fucking function! - testthat"
R>

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

CafeOBJ is a new generation algebraic specification and programming language. As a direct successor of OBJ, it inherits all its features (flexible mix-fix syntax, powerful typing system with sub-types, and sophisticated module composition system featuring various kinds of imports, parameterised modules, views for instantiating the parameters, module expressions, etc.) but it also implements new paradigms such as rewriting logic and hidden algebra, as well as their combination.

• CITP changes
  • new commands :ctf- and :csp-
  • new command :def(ine) to turn :ctf(-) and :csp(-) into proper tactics for :apply
  • new tactics nf, ct
• improvements in the online help system
• bug fixes in AC rewriting
• small changes in the set of abbreviations of the Emacs mode
• module system: require/provide can use Perl style :: separators to load modules from the libpath and its sub-directories
• term inspection (binspect) to analyze xor terms

• [1] https://httpd.apache.org/docs/trunk/upgrading.html