Programmer blog

The real article name might be something like:  Configuring Raspbery Pi to serve like a Time Capsule with Netatalk 3.0 for Mountain Lion.  But it's too long ;) Here I will describe the process of using Raspberry Pi like a Time Machine in my network. To be able to backup your MAC's remotely (Like it would be NAS of some kind). It assumes you have a Raspberry Pi and have installed a Raspbian there and have a ssh connection, or somehow having access to it's console. Refer to my previous article for details . Now that we have a Pi that is ready for action let's animate it. So to make it suit you as a Time Capsule (NAS) for your MAC's you need to do those basic steps: - connect and configure USB hard drive(s) - install support of HFS+ filesystem to be able to use MAC's native filesystem - make mount (auto-mount on boot) of your hard drive - install Avahi and Netatalk demons - configure Netatalk daemon to make it all serve as a Time Machine - configure ...

We always write something unusual while doing basic things. Our own bicycles and crutches to work out some unusual situation. Here is another recipe to do a thing like so. I have tried several libraries and readymade decisions. But it assumes you have them installed. And you often try things in console, don't you? Anyway the recipe is simple and quite straightforward. import datetime # Getting first timestamp t1 = datetime . datetime . now ( ) # Your function e.g.: data = [ g . name for g in request . user . groups . all ( ) ] # Second timestamp t2 = datetime . datetime . now ( ) print "Execution time: %s" % ( t1 - t2 ) It is rude and quite simple but may often suit you well to measure execution time in a simple and straightforward manner. Also nice idea to write down this function into logs. It may be handy on refactoring of your core app for e.g.; import datetime import logging log = logging . getLogger ( 'mylogger' ) # Getting ...

Today I had some practice with filtering Django models by date. Task was to archive old entries of the news. I've made 2 separate views for those. I was displaying actually news and another was ment to display archived items. Quite common task I guess. Also those 2 views are under wired buggy CMS, but we are not talking about that now. Will save some examples for future of mine/someones usage. Time. Subtracting a year from today with Python dateutil : from datetime import date , timedelta d = date . today ( ) - timedelta ( days = days_to_subtract ) This example returns 'd' that has less days than specified in 'days_to_subtract' . timedelta function also can be fed with 'months' , 'years' and so on. Becomes handy during time calculations. If you change this minus into plus you can calculate future time. Filtering Querysets. Filtering by date ranges. samples = Sample . objects . filter ( date__gte = datetime . date ( 2011 , 1...