tzury@x200:/$ sudo service mongodb stop
[sudo] password for tzury:
mongodb stop/waiting
tzury@x200:/$ status mongodb
mongodb stop/waiting
tzury@x200:/$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from pymongo import Connection
>>> Connection().test_db.books.count()
0
>>> Connection().test_db.books.insert({"autor": "Charles Dickens"})
ObjectId('4c1e592b6b13eb0ee3000000')
>>> Connection().test_db.books.count()
1
>>>
tzury@x200:/$ sudo service mongodb start
mongodb start/running, process 3830
tzury@x200:/$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from pymongo import Connection
>>> Connection().test_db.books.count()
1
>>> Connection().test_db.books.find()[0]
{u'autor': u'Charles Dickens', u'_id': ObjectId('4c1e592b6b13eb0ee3000000')}
>>>
>>>
tzury@x200:/$

$ sudo /Applications/Wireshark.app/Contents/MacOS/Wireshark

In order to capture traffic on the interfaces

Default parameter values are evaluated when the function definition is executed.
This means that the expression is evaluated once, when the function is defined, and that that same “pre-computed” value is used for each call. This is especially important to understand when a default parameter is a mutable object, such as a list or a dictionary: if the function modifies the object (e.g. by appending an item to a list), the default value is in effect modified. This is generally not what was intended. A way around this is to use None as the default, and explicitly test for it in the body of the function, e.g. …

I was not aware of this. I have an excuse though, in previous versions of Python, language reference was described as “for language lawyers” [link]. Since I never liked lawyers, I never bothered reading it. I am happy though it was changed in current release and now it is described as “describes syntax and language elements”. I guess I have to read it now.

Below is an example for a bug I had caused by this feature and which made me aware of this issue.

>>> import time
>>> def now(t=time.time()):
...     print t
...
>>> now()
1228988224.36
>>> now()
1228988224.36

Based on sofen’s blog’s post about python 2.6

This was the easiest thing I did recently. It went so smooth that this post is totally redundant.

Seven commands and you are all unicode.

Step 1: Make sure you got all the prerequisites

$ sudo apt-get install build-essential libncursesw5-dev libreadline5-dev libssl-dev libgdbm-dev libbz2-dev libc6-dev libsqlite3-dev tk-dev g++ gcc

Step 2: Grab the bits, extract them and build them

$ wget http://www.python.org/ftp/python/3.0/Python-3.0.tgz
$ tar xvzf Python-3.0.tgz
$ cd Python-3.0/
$ ./configure
$ make
$ sudo make install

That’s it my friend. You now have the best software development platform in the entire universe!

$ python3.0
Python 3.0 (r30:67503, Dec  4 2008, 21:27:40)
[GCC 4.3.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>

Good luck and enjoy the sweetness of open source software!

Example:

tzury@regulus:~$ sudo easy_install bug.gd
tzury@regulus:~$ sudo /usr/bin/python error_help_config.py
tzury@regulus:~$ python
Python 2.5.2 (r252:60911, Jul 31 2008, 17:28:52)
[GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> 0/0
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ZeroDivisionError: integer division or modulo by zero
>>> error_help()
========== 1 of 7 ==========
Error: Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ZeroDivisionError: integer division or modulo by zero

Solution: I divided by zero as a test. Maybe you did the same thing? The trick is not to divide by zero!
...
...

import pydoc
pydoc.gui()


(then click the ‘open browser’ button)

$(document).bind('keydown', 'Ctrl+c', fn);

See the live demo.

Python-Wifi is a Python library that provides access to information about a W-Lan card’s capabilities, like the wireless extensions written in C.

>>> from pythonwifi.iwlibs import Wireless
>>> wifi = Wireless('eth1')
>>> wifi.getEssid()
'romanofski'
>>> wifi.getMode()
'Managed'

A simple unix/linux daemon in Python

Here are the results:

jQuery

Prototype

There are only five of us who work on reddit; we couldn’t have made this site if it weren’t for a great community of developers. In no particular order, here’s a quick list of the open source products that reddit is built and runs upon: Debian, lighttpd, HAProxy, PostgreSQL, Slony-I, various python libraries, Psychopg, pylons, Solr, Tomcat, Ganglia, Mercurial, Git, gettext (translation), daemontools, and memcached.

Five people. 1,000,000′s of pages every day.

I am sure Facebook’s dudes need to rethink the whole concept and come up with something more sensible.

Jeff – here are the links for you:

Google Contacts API: http://code.google.com/apis/contacts/
Yahoo! Contact API: http://developer.yahoo.com/addressbook/
Windows Live Contact API: http://msdn.microsoft.com/en-us/library/bb463989.aspx

I’m glad these malpractices are getting more attention, they deserve to get the bad wrap on their wrist for these kind of infringements of respecting users’ data.

Stefan Fountain on June 5, 2008 05:37 AM

Since IE8 release gained lots of credit by JavaScript Hackers (John Resig and many more), therefore, I couldn’t believe it until I saw it in my own eyes.

Plain and simple, the site is broken. Icons, texts, menus are overlapping each other.

Everyone can see now that every piece of DHTML code must be written twice, once for all the browsers, and then specifically for IE.

The unbearable lightness of releasing buggy software at MS is shocking.

The results are deployed here in front of your eyes.

IE8 default mode

IE 8 emulating IE7

Firefox 3 Beta 3

Both  companies are making money selling proprietary, closed-source software (and hardware) . Perhaps Apple just dose it more gently with a wider smile on the face. That is all.

Even getting a legal copy of OS x runs on a virtual machine is almost impossible.

For now, I will stick with Dell which runs Linux smoothly.

Read more at:

• http://ejohn.org/blog/unbreaking-the-web/
• http://blogs.msdn.com/ie/archive/2008/03/03/microsoft-s-interoperability-principles-and-ie8.aspx
• http://www.microsoft.com/presspass/presskits/interoperability/default.mspx

I have said in the past that IE would eventually become an open source browser and so it would. I believe  that by the year of 2013 .NET, IE and perhaps more products from Microsoft would be become open source projects.

There is no other way to keep your top rank in any business  than being the best, by all means. Ever since the world of software have realized the the best way to write a software if the open-source way, Microsoft would have to join this principles in order to survive. The fact that more and more developers are switching to free and open-source tools, languages and platforms and barely the vice versa is the only fact that counts in the long run.

In order to fix it at address line go to about:config (and promise to be careful ;-)) and set layout.css.dpi to 96.

Installing postgresql (8.2)

sudo apt-get install postgresql-8.2

Setting up the password for postgres’ postgres user

sudo -u postgres psql template1
ALTER USER postgres WITH PASSWORD 'your-password';
\q

Configure postgres’ authentication method :

sudo cp /etc/postgresql/8.2/main/pg_hba.conf /etc/postgresql/8.2/main/pg_hba.conf_bak
sudo nano /etc/postgresql/8.2/main/pg_hba.conf

Add the following at the bottom of the file

# TYPE  DATABASE    USER        IP-ADDRESS        IP-MASK           METHOD
host    all         all         127.0.0.1       255.255.255.0    password

Restart postgres:

sudo /etc/init.d/postgresql-8.2 restart

Step 2: Infogami

Get the code with:

sudo apt-get install mercurial
hg clone http://infogami.org/hg/ infogami

Create your run.py

cd infogami
nano run.py

Paste the following into the run.py file:

import infogami
infogami.config.db_parameters = dict(dbn='postgres', db="infogami", user='postgres', pw='your-password')
infogami.config.site = 'sitename.local'
if __name__ == "__main__":
    infogami.run()

Save and exit.

Grant permission to infogami (and it child nodes)

cd ..
chmod -R 777 infogami/

Install Python Driver for PostgreSQL (python-psycopg2)

 sudo apt-get install python-psycopg2

Create the database and install infogami objects into it

cd infogami
sudo -u postgres createdb infogami
sudo -u postgres psql infogami < infogami/tdb/schema.sql
sudo -u postgres python run.py install

That’s it. You now have infogami installed on your machine.
to run it type:

sudo -u postgres python run.py

and nav your firefox to: http://loclahost:8080

Installing postgresql (8.2)

sudo apt-get install postgresql-8.2

Setting up the password for postgres’ postgres user

sudo -u postgres psql template1
ALTER USER postgres WITH PASSWORD 'your-password';
\q

Configure postgres’ authentication method :

sudo cp /etc/postgresql/8.2/main/pg_hba.conf /etc/postgresql/8.2/main/pg_hba.conf_bak
sudo nano /etc/postgresql/8.2/main/pg_hba.conf

Add the following at the bottom of the file

# TYPE  DATABASE    USER        IP-ADDRESS        IP-MASK           METHOD
host    all         all         127.0.0.1       255.255.255.0    password

Restart postgres:

sudo /etc/init.d/postgresql-8.2 restart

So, if you don’t feel like you’re at least ten times more productive with Python than Java, chances are good that you’ve been forgetting to use the time machine! (And if you miss your Java IDE, consider the possibility that it’s because your Python program is much more complex than it needs to be.)

One might replace the word Java with .Net, it would remain the same, wouldn’t it?

Media change: please insert the disc labeled 'Ubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016.1)' in the drive '/cdrom/' and press enter

If you want to get rid of it you should comment out the line that point to the “CD-ROM” Source.

Type the following in the terminal:

gksudo gedit /etc/apt/sources.list

Locate the line that reads:

deb cdrom:[Ubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016)]/ gutsy main restricted

and comment it out

#deb cdrom:[Ubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016)]/ gutsy main restricted

Save the file, close the editor, back in the terminal window type:

sudo apt-get update

Good luck and thank you for choosing Ubuntu.

I was worth about over a million dollars when I was twenty-three
and over ten million dollars when I was twenty-four,
and over a hundred million dollars when I was twenty-five and it wasn’t that important because I never did it for the money.

The following is a photo was taken by Diana Walker and it shows Steve Jobs in his house in 1982

Jobs said about it:

This was a very typical time. I was single.
All you needed was a cup of tea, a light, and your stereo,
you know, and that’s what I had.

•Bare in mind• the fact that in 1982 Jobs was already 27 years old, 2 years after he was already worth more than hundred million dollars, and yet, he kept that elegant minimalism principle.

If you are trying to contact me on Facebook, please don’t. My account has been “disabled” for breaking Facebook’s Terms of Use. I was running a script that got them to keep me from accessing my account. I’m appealing. I’ll tell you what I was doing as soon as I talk with the developers who built what I was using and as soon as I talk with Facebook’s support (I sent an email in reply to the one below, but haven’t heard back yet).

…

I am working with a company to move my social graph to other places and that isn’t allowable under Facebook’s terms of service.

While they wrote their own screen scrappers so they can read all your contacts and friends that stored in the addresses books at gmail or hotmail or live.com, and many others. They blocked Robert Scoble’s account for running a script that (as far as I can read between the lines) exports his own friends list.

It is pretty clear now why Facebook preferred to go along with Microsoft instead of Google.
It is even more clear why they don’t join open social.
I can see what they thought at the first place when they released that cursed Beacon, and I don’t buy the apologizes that came after the rush.

Here is a short description of [Windows|Facebook] (you choose) platform.

• It is a closed source system that comes with a set of APIs, which let third parties develop new applications.
• If a user wants to use a third party application he must install that application.
• If a user decided to uninstall a third party software.
• When a user run the uninstall process, most of the data might remain in the system.
• You never know who has access to your private data.

Js-Hotkeys is a jQuery plugin that lets you easily add and remove handlers for keyboard events anywhere in your code supporting almost any key combination.

Read more at:
http://code.google.com/p/js-hotkeys/wiki/about
Live demo at:
http://jshotkeys.googlepages.com/test-static.html

You can see my homework at http://py2lisp.jottit.com/

the following:

<h2 id="foo">Click Here</h2>
<script>
    $('foo').click = function(){alert("Hello")};
</script>

is better than:

<h2 id="foo" onclick="alert('Hello');">Click Here</h2>

and the following:

<style>
body{
    background-color:#ffffff;
    color:#000000;
    margin-top:3}
a{color:#0000cc}
a:visited{color:#551a8b}
</style>
<body>....</body>

<script>
$(document).ready(function(){
    sf();
    if(document.images){
        new Image().src='/images/nav_logo3.png';
    });
</script>

is far better than:

<body bgcolor=#ffffff
text=#000000
link=#0000cc
vlink=#551a8b
alink=#ff0000
onload="sf();if(document.images){new Image().src='/images/nav_logo3.png'}"
topmargin=3 marginheight=3>....</body>

and last but not least: Using HTML tables for layout-ing is evil.

The point is that the code above is taken from Google, Facebook and Yahoo.
Yep! All the majors seems to be caring less on standards and more for their own interests.

None of them are valid HTML and Google.com uses a table to align the two buttons (Google Search and I’m felling Lucky) in the middle of the page.

— Annie Hall (1977) by Woddy Allen

I have been thinking allot recently about some significant decisions I have to make regarding my career, many times I found myself summarizing: I would, but I need the salary… ♥

import math
import re

whitelist = '|'.join(
    # oprators, digits
    ['-', '\+', '/', '\\', '\*', '\^', '\*\*', '\(', '\)', '\d+']
    # functions of math module (ex. __xxx__)
    + [f for f in dir(math) if f[:2] != '__'])

valid = lambda exp: re.match(whitelist, exp)

>>> valid('23**2')
<_sre.SRE_Match object at 0xb78ac218>
>>> valid('sys.exit(100)') == None
True
>>> exp = '23**2'
>>> if valid(exp):
>>>     x = eval(exp)

came across this post via unofficial planet python

MK Gandhi

See this:

def fib():
    a, b = 0, 1
    while 1:
        yield b
        a, b = b, a+b

if __name__ == '__main__':
    f = fib()
    for i in xrange(1000):
        print f.next()

from: http://www.python.org/dev/peps/pep-0255/

Note: (a) that’s number, not integer, (b) that’s incremented by, not plus.

For python he offers this approach:

class foo:
    def __init__(self, n):
        self.n = n

    def __call__(self, i):
        self.n += i
        return self.n

I thought of it for a few seconds and realized that this class instantiation is not necessary. Same can be achieved this way:

def foo(n):
    def _inci(n, x):
        n+=x
        return n

    return lambda i: _inci (n,i)

var a = [];

[!!a, a == false] == [true, true]

You get !!a == true and at the same time a == false, now you are confused, ain’t you?

Therefore never ever you should be using in your code ‘==’ operator.

[!!a, a === false] == [true, false] – > Feels better now, ain’t it?

“Follow the rules” is sometime a rule one should follow

The final result is relatively small file (121 lines of code). But do not let this fact misleading you by underestimating its value.

> See Live Demo  

Read more at Google Code and jQuery Plugin Repository

Code Sample and download a pre alpha version are available at Google Code

Cheers,

In order to solve this issue, you can either switch to POST, or add a time stamp to any url you send.

function uncache (url){
return url + "&uncache=" + new Date().getTime();
}

As far as I can tell, in my opinion, firing Aaron Swartz is one of the biggest mistake a software company can make. There aren’t many Aarons in the universe, and if you were lucky enough to came across one, and shake his hand, leave your hand at there, that is, don’t let the person go. It seems like the guys at Wired probably don’t get it.

Making mistakes is one thing, being evil is another.

This is the current page at reddit.com
(http://programming.reddit.com/help/team_reddit)

This is the one I managed to find at Internet Archive
(http://web.archive.org/web/20061222002224/http://programming.reddit.com/help/team_reddit)

Related links:

• http://blogoscoped.com/archive/2007-05-07-n78.html
• http://www.aaronsw.com/weblog/fired
• http://en.wikipedia.org/wiki/Reddit
• http://www.aaronsw.com/weblog/officespace
• http://programming.reddit.com/help/team_reddit
• http://web.archive.org/web/20061222002224/http://programming.reddit.com/help/team_reddit

PS: It would interesting, seeing this post in reddit

I could not believe that a *Made In Google* application will miss a search function. Can you?

Every day I go over dozens of RSS/ATOM feeds, I sometime tag the important/interesting/future reading post, or even share them. Yet, if I ever wanted to re-visit a site or blog for an article I’ve read, or wanted to read but didn’t have the time when it was originally posted, and I found myself scrolling over thousands of post hoping to get lucky and finding what I am looking for.

In sum, Google Reader Team, Thanks for this great application, It helping me allot and saves me time every day. However, I believe that by adding a search capability, is necessary.

Update:
Google reader now has that desired function: See at
http://googlereader.blogspot.com/2007/09/we-found-it.html

The only browser which fully supports SVG is Opera, Firefox implements many features but not all. VML comes from the same streets that Windows came from. Canvas is owned by Steve Jobs, Flash is a proprietary of adobe [and I don't feel like going into WHATWG and HTML5 and all the political arguments].

In March 2001, that is 6.5 years ago, Jeffrey Zeldman published an article titled: “SMIL When You Play That” and yet, I can barely remember myself seeing websites using this method.

On the other hand, in the  DHTML/DOM/JS field, we have many of the same, a great collection of community supported cross-browser libraries such as: YUI; Prototype+Scriptaculous;  jQuery; Mochikit; Dojo and many more, each of which dose more or less the same, making web development as easier and elegant as possible.

I wish I had enough time and knowledge require to push this into Mozilla. I just think it is time to do to Flash whatever was done to IE and Windows, taking away the monarchy and give us the freedom and comfort of open sourced technology.

Watching the generated numbers running on the screen get me so high that I feel I can start writing poetry.
Try it for yourself

from os.path import join

rootdir = '/'

filter = '.*\.js$|.*\.py$|.*\.html$|.*\.css$|.*\.sql$|.*\.cs$|.*\.cpp$|.*\.c$|.*\.h|.*\.java$'

def usage():

    print 'USAGE: python loc.py /<rootdir>'

def loc(fname):

    try:

        f = open(fname)

        return len(f.readlines())

    except:

        return 0

def scan(dir):

    total = 0

    for root, dirs, files in os.walk(dir):

        for file in files:

            if re.match(filter, file):

                fullpath = os.path.join(root, file)

                ln = loc(fullpath)

                print fullpath, ln

                total += ln

    print '\n', '_'*34, '\n\n', 'Total # Of lines:', total, '\n\n'

if __name__ == '__main__':

    fname = ''

    args = sys.argv

    if len(args) >= 2:

        fname = args[1]

    else:

        fname = raw_input("Enter root directory: ")

    scan(fname)

    raw_input()