Keynote on Linux

No, there's no native iWork on my Debian Sid.

It has done via iCloud Drive and iCloud Keynote.

My keynote, wrote it using my old OS X Maverick (or maybe even when my MacBook is still using Lion or Snow Leopard, I forgot), can be accessed via Chrome browser.

Tinycore Linux on Lion's Virtual Box

I installed it on new machine. Though it's not really installing for I just running the iso. My virtual machine is set without harddisk.

The OS boot very quick. But here the problem arise.

While GUI is included in this 8 Mb distro, I can't used it effectivelly soon. You know, my mac has dvorak keyboard layout, so what I typed come out as gibberish. There is  kmaps.tcz and I applied it but it has no effect

Displaying Calculation Output of Python Script to Web Page using Python-based Web Server

It'll be convenient if we could displaying output from our Python code to web page.

To convert calculation output of Python script to web page we need BaseHTTPServer, a Python-based web server. With it, we could write any python code and display it in no time. It has advantage in form of simplicity, we don't need php to convert our result or typing it to static html code, we just used python alone (it's possible to write html and php code on python though).
This code below will display python script calculating value of a function (sin(x)+x^2) to web page. As it behave as web server too, we don't need apache or other web server to broadcast it.

Here the code. It's written in Python 2.7 on Mac OS X Lion with numpy module and sys, parser and basehttpserver built in module.

from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
import sys,parser
from math import *
import numpy as np

class Handler(BaseHTTPRequestHandler):
    def do_GET(self):
        n=10
        x=7
        y = 'sin(x)+x**2'
        z = parser.expr(y).compile()
        
        self.send_response(200)
        self.send_header("Content-type", "text/html")
        self.end_headers()
        
        self.wfile.write("")
        self.wfile.write("")
        self.wfile.write("Hi Folks, Aravir here
")
        self.wfile.write("
")
        self.wfile.write("The value of ")
        self.wfile.write(y )
        self.wfile.write(" on x = " )
        self.wfile.write(x)
        self.wfile.write(" is " )
        self.wfile.write(eval(z) )

        self.wfile.write("")

if __name__=="__main__":
    try:
        server = HTTPServer(("", 8080), Handler)
        server.serve_forever()
    except KeyboardInterrupt:
        server.socket.close()

Access it using web browser in localhost:8080 from your computer running code above, or :8080 and get this

From python

Django ain't for This

While I'm searching for tutorial about creating simple static web page using Django, I surprised that i found almost nothing. There is Django documentation for it but I think it's too much; creating microblogger, forum, note, wiki, etc.

According what I found after surfed a while, Django isn't for this. I was suggestet to use basehttpserver instead.



Here what I found

"I have python scripts which provides output and I need to have this output on the web."


That is not what Django is for. What you want to do can be achieved with something as simple as this:

from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer

class Handler(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header("Content-type", "text/html")
        self.end_headers()

        self.wfile.write("magic content goes here")

if __name__=="__main__":
    try:
        server = HTTPServer(("", 8080), Handler)
        server.serve_forever()
    except KeyboardInterrupt:
        server.socket.close()

Observe the self.wfile.write line. Whatever you write there ends up in the browser. If it matters, you can use self.path in the Handler to check which file was requested.

Tested with Python 2.6.4, accessed the server with Chrome browser.

..........

If you need a quick web server running and you don't want to mess with setting up apache or something similar, then Python can help. Python comes with a simple builtin HTTP server. With the help of this little HTTP server you can turn any directory in your system into your web server directory. The only thing you need to have installed is Python.

Practically speaking this is very useful to share files inside your local network. Implementing this tiny but hugely useful HTTP server is very simple, its just a single line command.

Assume that I would like to share my home directory
Open up a terminal and type:

$ cd 
$ python -m SimpleHTTPServer

That's it! Now your http server will start in port 8000. You will get the message:

Serving HTTP on 0.0.0.0 port 8000 ...

Now open a browser and type the computer address like:

http://192.168.1.1:8000

If you on computer that is running server, you can also access it via:

http://127.0.0.1:8000

If the directory has a file named index.html, that file will be served as the initial file. If there is no index.html, then the files in the directory will be listed.
If you wish to change the port that's used start the program via:

$ python -m SimpleHTTPServer 8080

If you want to only serve on localhost you'll need to write a custom Python program such as:

import sys
import BaseHTTPServer
from SimpleHTTPServer import SimpleHTTPRequestHandler

HandlerClass = SimpleHTTPRequestHandler
ServerClass  = BaseHTTPServer.HTTPServer
Protocol     = "HTTP/1.0"

if sys.argv[1:]:
    port = int(sys.argv[1])
else:
    port = 8000
server_address = ('127.0.0.1', port)

HandlerClass.protocol_version = Protocol
httpd = ServerClass(server_address, HandlerClass)

sa = httpd.socket.getsockname()
print "Serving HTTP on", sa[0], "port", sa[1], "..."
httpd.serve_forever()

JPEG Support for Python 2.7's PIL Module on OS X Lion

My PIL module refuse to process jpeg image. It says that there is no decoder jpeg on my system. It's no good  since I want to process that kind of file using PIL in future, and my older iPhoto picture on my 13 inch MacBook Pro is generally in jpeg format too.

Here the snapshot

Nugrohos-MacBook-Pro:olah gambar nugroho$ python olahgambar.py 
Program Image Enchancement
Oleh Nugroho Adi Pramono
275514
===========================
format awal:  JPEG 2448x3264 RGB
konversi ke grayscale
Traceback (most recent call last):
  File "olahgambar.py", line 14, in 
    gbw = gb.convert("L")
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PIL/Image.py", line 679, in convert
    self.load()
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PIL/ImageFile.py", line 189, in load
    d = Image._getdecoder(self.mode, d, a, self.decoderconfig)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PIL/Image.py", line 385, in _getdecoder
    raise IOError("decoder %s not available" % decoder_name)
IOError: decoder jpeg not available
Nugrohos-MacBook-Pro:olah gambar nugroho$ 

So I googling for it and found libjpeg at http://www.ijg.org/files/, download, exctract and install it using magic UNIX words ./configure, make, make install

Nugrohos-MacBook-Pro:~ nugroho$ cd Downloads/jpeg-8c/
Nugrohos-MacBook-Pro:jpeg-8c nugroho$ ./configure 
Nugrohos-MacBook-Pro:jpeg-8c nugroho$ make
Nugrohos-MacBook-Pro:jpeg-8c nugroho$ make test
rm -f testout*
./djpeg -dct int -ppm -outfile testout.ppm  ./testorig.jpg
./djpeg -dct int -bmp -colors 256 -outfile testout.bmp  ./testorig.jpg
./cjpeg -dct int -outfile testout.jpg  ./testimg.ppm
./djpeg -dct int -ppm -outfile testoutp.ppm ./testprog.jpg
./cjpeg -dct int -progressive -opt -outfile testoutp.jpg ./testimg.ppm
./jpegtran -outfile testoutt.jpg ./testprog.jpg
cmp ./testimg.ppm testout.ppm
cmp ./testimg.bmp testout.bmp
cmp ./testimg.jpg testout.jpg
cmp ./testimg.ppm testoutp.ppm
cmp ./testimgp.jpg testoutp.jpg
cmp ./testorig.jpg testoutt.jpg
Nugrohos-MacBook-Pro:jpeg-8c nugroho$ sudo make install

reinstall PIL

PIL 1.1.7 SETUP SUMMARY
--------------------------------------------------------------------
version       1.1.7
platform      darwin 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
              [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]
--------------------------------------------------------------------
--- TKINTER support available
--- JPEG support available
--- ZLIB (PNG/ZIP) support available
*** FREETYPE2 support not available
*** LITTLECMS support not available
--------------------------------------------------------------------
To add a missing option, make sure you have the required
library, and set the corresponding ROOT variable in the
setup.py script.

Ubuntu 11.10 Oneiric Ocelot On OS X Lion's VBox (NAT and Host-Guest Sharing Folder)

After installing Ubuntu 11.10 on Mac OS X Lion using VirtualBox, here first impression of Oneiric Ocelot



There is dock at left, like on Mac.

Network is works flawlessy, I can surf internet using firefox, its NAT configuration come by default while installing it.

From Oneiric Ocelot

Firefox run at fullscreen(I mean ubuntu screen), just like Lion's or iPad's Safari (Lion's version of firefox didn't auto fullscreen yet). We can windowed-mode-ed it by hovering mouse at top edge of screen, it'll show menu-bar too

Hover mouse at top

From Oneiric Ocelot

It's windowed firefox

From Oneiric Ocelot

 If we click dash home, we'll got launchpad like (just like iPad or Lion's launchpad). At second tab, there's apps available to download.

From Oneiric Ocelot

 To access shared folder on Lion named vbox, I opened terminal by clicking Dash home and type terminal on search box

From Oneiric Ocelot

 First create directory

aravir@aravir-VirtualBox:~$mkdir vbox

mount shared vbox on lion using this command

aravir@aravir-VirtualBox:~$sudo mount -t vboxsf vbox vbox 

at screenshot you know it generate error because ubuntu did'nt recognize vboxsf filesystem. To introduce it, guest addition must be installed.

From Oneiric Ocelot

From Oneiric Ocelot

From Oneiric Ocelot

From Oneiric Ocelot

Failed. Guest addition need root privilege.

aravir@aravir-VirtualBox:~$cd /Media/VBOXADDITIONS_4.1.6_74713
$sudo ./VBoxLinuxAdditions.run

After guest addition installed and the system restarted (it's support full screen on my Macbook monitor now), retype the command above, and done

 Vbox directory before mounted

From Oneiric Ocelot

After mounted

From Oneiric Ocelot

Installing Python-2.7's Imaging Library Module on OS X Lion

PIL, as its name suggest, is an imaging library for python. I used PIL to get every pixel of an image as 2x2 array information. With that I could modify it with many possibilities; edge detection, black and white transformation, log transformation, creating watermark, etc.

{update: I install this PIL module on my OS X El Capitan too, :), and easier } 



Installing PIL is an easy task, if we have its prerequities installed. Just download it and extract it and then install using this command

Nugrohos-MacBook-Pro:Imaging-1.1.7 nugroho$ python setup.py install
running install
running build
running build_py
creating build
creating build/lib.macosx-10.6-intel-2.7
...
unable to execute gcc-4.2: No such file or directory
error: command 'gcc-4.2' failed with exit status 1
Nugrohos-MacBook-Pro:Imaging-1.1.7 nugroho$ 

Oops, it is failed to install, it tell me that there is no gcc-4.2 on my machine, and that's true. I've modified my /usr/bin/gcc to point /usr/local/bin/gcc.

I have gcc 4.2 from Xcode4.2, which actually llvm-gcc. My existing gcc is gcc-4.6.2 so I cheated… I created symlink named gcc-4.2 on /usr/bin pointing /usr/local/bin/gcc

Nugrohos-MacBook-Pro:Imaging-1.1.7 nugroho$ ln -s /usr/local/bin/gcc /usr/bin/gcc-4.2
ln: /usr/bin/gcc-4.2: Permission denied
Nugrohos-MacBook-Pro:Imaging-1.1.7 nugroho$ sudo ln -s /usr/local/bin/gcc /usr/bin/gcc-4.2
Nugrohos-MacBook-Pro:Imaging-1.1.7 nugroho$ 

Still error, :(

gcc-4.2: error: x86_64: No such file or directory
gcc-4.2: error: unrecognized option ‘-arch’
gcc-4.2: error: unrecognized option ‘-arch’
error: command 'gcc-4.2' failed with exit status 1

Hm, maybe if I'm linking /usr/bin/gcc-4.2 to /usr/bin/llvm-gcc-4-2; it's gcc-4.2 after all, if we ignore llvm (don't know what is it stand for). It doesn't hurt if I'm trying, so..

Nugrohos-MacBook-Pro:Imaging-1.1.7 nugroho$ sudo rm /usr/bin/gcc-4.2 
Password:
Nugrohos-MacBook-Pro:Imaging-1.1.7 nugroho$ sudo ln -s /usr/bin/llvm-gcc-4.2 /usr/bin/gcc-4.2
Nugrohos-MacBook-Pro:Imaging-1.1.7 nugroho$ python setup.py install
running install
running build
running build_py
running build_ext
-
--------------------------------------------------------------------
PIL 1.1.7 SETUP SUMMARY
--------------------------------------------------------------------
version       1.1.7
platform      darwin 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
              [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]
--------------------------------------------------------------------
--- TKINTER support available
*** JPEG support not available
--- ZLIB (PNG/ZIP) support available
*** FREETYPE2 support not available
*** LITTLECMS support not available
--------------------------------------------------------------------
creating /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PIL.pth
Nugrohos-MacBook-Pro:Imaging-1.1.7 nugroho$ 

Wow, success 

Well, no need gcc4.6.2 afterall, just create symbolic link of llvm-gcc-4.2 named gcc-4.2,:)

test

Nugrohos-MacBook-Pro:Imaging-1.1.7 nugroho$ python
Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import image
Traceback (most recent call last):
  File "", line 1, in 
ImportError: No module named image
>>> import Image
>>> 

OK

Install GCC 4.6.2 on OS X Lion (success)

Still failed, for not able to access gcc-4.6.2 automatically (have to access ~/gcc462/bin), I install binary GCC from HPC. So I'm extracted gcc-lion.tar.gz. For my surprise, it's extracted with some hierarchy like usr/local/bin, usr/local/include, … and I supposed to copy it to root folder. In that case, my Xcode4.2's gcc would still intact because it's in /usr/bin .

 I wonder if all gcc compilation result'll stored to /usr/local if we didn't pass any parameter, so I checked my /usr/local/bin directory

Nugrohos-MacBook-Pro:/ nugroho$ cd usr/local/bin/
Nugrohos-MacBook-Pro:bin nugroho$ ls
2to3gfortran                  python-config    smtpd.py
2to3-2.7    idle     python2.7    smtpd2.7.py
c++     idle2.7     python2.7-32    x86_64-apple-darwin11.2.0-c++
cpp     jcf-dump    python2.7-config   x86_64-apple-darwin11.2.0-g++
g++     pydoc     pythonw     x86_64-apple-darwin11.2.0-gcc
gcc     pydoc2.7    pythonw-32    x86_64-apple-darwin11.2.0-gcc-4.6.2
gcj     python     pythonw2.7    x86_64-apple-darwin11.2.0-gcj
gcov     python-32    pythonw2.7-32    x86_64-apple-darwin11.2.0-gfortran

There is gcc in it. Is in gcc-4.2?

Nugrohos-MacBook-Pro:bin nugroho$ ./gcc --version
gcc (GCC) 4.6.2
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Yes, it is gcc-4.6.2? So, I replace gcc symlink previously  pointed to /usr/bin/llvm-gcc to /usr/local/bin/gcc

Nugrohos-MacBook-Pro:bin nugroho$ which gcc
/usr/bin/gcc
Nugrohos-MacBook-Pro:bin nugroho$ which llvm-gcc
/usr/bin/llvm-gcc
Nugrohos-MacBook-Pro:bin nugroho$ sudo ln -s gc
gcc   gcj   gcov  
Nugrohos-MacBook-Pro:bin nugroho$ sudo ln -s gcc /usr/bin/gcc
Password:
ln: /usr/bin/gcc: File exists
Nugrohos-MacBook-Pro:bin nugroho$ sudo mv /usr/bin/gcc /usr/bin/gccOLD
Nugrohos-MacBook-Pro:bin nugroho$ sudo ln -s gcc /usr/bin/gcc
Nugrohos-MacBook-Pro:bin nugroho$ gcc
gcc: fatal error: no input files
compilation terminated.
Nugrohos-MacBook-Pro:bin nugroho$ gcc --version
gcc (GCC) 4.6.2
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Nugrohos-MacBook-Pro:bin nugroho$ 

Hooray, HPC binary is left untouched, :)

Ubuntu 11.10 Oneiric Ocelot on OS X Lion via Virtual Box

It's long time since my MacBook Pro had ubuntu installed. Curious about new release of ubuntu, I decided to download .iso file via torrent network and installed it on my Mac via VirtualBox as I don't want to dual booting my Mac again (the way I did several years ago).



 I downloaded 64-bit version of Oneiric Ocelot and it's installed without problem.

 From screenshot below, we know ubuntu team has improved their installation method. While the system is busy copying file, we're prompted to fill our detail of instalation; keyboard, time zone, username. Such an efficient method.

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

From Blogsy Photos

Lorenz Attractor using Python 2.7 and Vpython Module on Mac OS X Lion

From Blogsy Photos

Lorenz attractor's generated by three nonlinear simultaneous equation.

x1=x0+h*a*(y0-x0)
y1=y0+h*(x0*(b-z0)-y0)
z1=z0+h*(x0*y0-c*z0)

 
where

a=10
b=28
c=8./4.

We can play with a,b and c to see the effect.

Here the code to visualize Lorenz attractor on Python. We need VPython module to visualize it.

from visual import *
from operator import mod
jl=1.
h=0.01
a=10
b=28
c=8./4.
x0=0.1
y0=0
z0=0
n=10000.
r=1.
while jl < n:
    rate(1000)
    rd=mod(n,jl)/1000
    sphere(pos=(x0,y0,z0),radius=r, color=(rd,1,rd))
    x1=x0+h*a*(y0-x0)
    y1=y0+h*(x0*(b-z0)-y0)
    z1=z0+h*(x0*y0-c*z0)
    jl=jl+1
    x0=x1
    y0=y1
    z0=z1
    

Since Vpython's not support 64bit platform, we must execute the code using 32-bit python like this

Nugrohos-MacBook-Pro:cellular nugroho$ python2.7-32 lorenz.py

Here the result

From Blogsy Photos

The Journey of Installing Matplotlib Python on Mac OS X Lion (continued)

To install Matplotlib, I have to install numpy first. To install numpy, I need GCC. Lion installer package didn't come with XCode, it has to be downloaded separately from MacAppStore for free. I don't dare to even trying it with my sluggish itnternet connection, so I tried others possibility without success untill I found my SnowLeopard DVD.

Finally, I am able to install GCC. I used XCode 3.2 on Snow Leopard DVD in Lion, :). So, the journey is continue…

Check (just for show off, :))



Nugrohos-MacBook-Pro:mysite nugroho$ gcc
gcc         gcc-4.0     gcc-4.2     gccmakedep  
Nugrohos-MacBook-Pro:mysite nugroho$ gcc

Now install numpy, oh no… look at this.

Last login: Sun Dec 11 19:11:11 from 192.168.2.2
Nugrohos-MacBook-Pro:mysite nugroho$ pip install numpy
Downloading/unpacking numpy
  Downloading numpy-1.6.1.tar.gz (2.6Mb): 2.6Mb downloaded
  Running setup.py egg_info for package numpy
    Running from numpy source directory.non-existing path in 'numpy/distutils': 'site.cfg'
    F2PY Version 2
    blas_opt_info:
      FOUND:
        extra_link_args = ['-Wl,-framework', '-Wl,Accelerate']
        define_macros = [('NO_ATLAS_INFO', 3)]
        extra_compile_args = ['-faltivec', '-I/System/Library/Frameworks/vecLib.framework/Headers']
…
…
    building extension "numpy.core._sort" sources
      adding 'build/src.macosx-10.6-intel-2.7/numpy/core/include/numpy/config.h' to sources.
      adding 'build/src.macosx-10.6-intel-2.7/numpy/core/
py/core/include/numpy/__multiarray_api.h']
    building extension "numpy.core.multiarray" sources
      adding 'build/src.macosx-10.6-intel-2.7/numpy/core/include/numpy/config.h' to sources.
…
…
error: could not delete '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/__config__.py': Permission denied
…

It's look like my gcc think it's on Snow Leopard platform, :(. But, there is small hope; the error warning just mentions permission, hm, how about sudo?

ok, let's try again

Nugrohos-MacBook-Pro:mysite nugroho$ sudo pip install numpy
Password:
Downloading/unpacking numpy
  Running setup.py egg_info for package numpy
    Running from numpy source directory.non-existing path in 'numpy/distutils': 'site.cfg'
…
…
      adding 'build/scripts.macosx-10.6-intel-2.7/f2py' to scripts
    changing mode of /Library/Frameworks/Python.framework/Versions/2.7/bin/f2py to 755
Successfully installed numpy
Cleaning up...
Nugrohos-MacBook-Pro:mysite nugroho$ 


hm, still in doubt

Nugrohos-MacBook-Pro:mysite nugroho$ python
Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
>>> 

yeahh…
(don't know if it works as it compiled using GCC designed for Snow Leopard. At least no news is good news, :) )

So here it is

Nugrohos-MacBook-Pro:mysite nugroho$ pip install matplotlib
Downloading/unpacking matplotlib
  Downloading matplotlib-1.0.1.tar.gz (13.3Mb): 13.3Mb downloaded
…
BUILDING MATPLOTLIB
            matplotlib: 1.0.1
                python: 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
                        [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]
              platform: darwin
REQUIRED DEPENDENCIES
                 numpy: 1.6.1
             freetype2: found, but unknown version (no pkg-config)
                        * WARNING: Could not find 'freetype2' headers in any
                        * of '.', './freetype2'.
OPTIONAL BACKEND DEPENDENCIES
                libpng: found, but unknown version (no pkg-config)
                        * Could not find 'libpng' headers in any of '.'
----------------------------------------
Command python setup.py egg_info failed with error code 1
Storing complete log in /Users/nugroho/.pip/pip.log
Nugrohos-MacBook-Pro:mysite nugroho$ 

Hm, still long way to go, have to install freetype2 and lbpng. Ugh…

Creating Django Apps on OS X Lion 10.7.2

As this is my first time using Django, I have to take care of some initial setup. Namely, I’ll need to auto-generate some code that establishes a Django project – a collection of settings for an instance of Django, including database configuration, Django-specific options and application-specific settings.

From the command line, cd into a directory where you’d like to store your code, I use my python directory,then run the following command:
django-admin.py startproject mysite
This will create a mysite directory in my python. Here tho result.
Nugrohos-MacBook-Pro:python nugroho$ pwd
/Users/nugroho/python
Nugrohos-MacBook-Pro:python nugroho$ ls
appender.py distribute-0.6.24.tar.gz graphy graphy.pyc
apprunner.py f.py graphy.py
Nugrohos-MacBook-Pro:python nugroho$ django-admin.py startproject mysite
Nugrohos-MacBook-Pro:python nugroho$ ls
appender.py distribute-0.6.24.tar.gz graphy graphy.pyc
apprunner.py f.py graphy.py mysite
Nugrohos-MacBook-Pro:python nugroho$ cd mysite/
Nugrohos-MacBook-Pro:mysite nugroho$ ls
__init__.py manage.py settings.py urls.py
Nugrohos-MacBook-Pro:mysite nugroho$
These files in mysite directory are:
__init__.py: An empty file that tells Python that this directory should be considered a Python package. (Read more about packages in the official Python docs if you're a Python beginner.)
manage.py: A command-line utility that lets you interact with this Django project in various ways. You can read all the details about manage.py in django-admin.py and manage.py.
settings.py: Settings/configuration for this Django project. Django settings will tell you all about how settings work.
urls.py: The URL declarations for this Django project; a "table of contents" of your Django-powered site. You can read more about URLs in URL dispatcher.
To verify that it works do this
Nugrohos-MacBook-Pro:mysite nugroho$ python manage.py runserver
Validating models...


0 errors found
Django version 1.3.1, using settings 'mysite.settings'
Development server is running at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
Yup, it works…
Try to access http://127.0.0.1:8000 with your browser, :)
Here screenshot from Safari on my Lion

From Blogsy Photos

If we want to show off on other computer, use command below. It will listen on all public IP's

Nugrohos-MacBook-Pro:mysite nugroho$ python manage.py runserver 0.0.0.0:8000
Validating models...


0 errors found
Django version 1.3.1, using settings 'mysite.settings'
Development server is running at http://0.0.0.0:8000/
Quit the server with CONTROL-C.

Here screenshot from my iPad

Double Tap Dragging on Lion

I wrote about missing single-tap-hold on Lion to dragging. However, after googling around, I found that it's still has capability to do it, just you will find it at the most unpredictable place in System Preferences

To enable one finger drag by double-tap-hold, go to System Preferences, click on Universal Access, and then the Mouse & Trackpad tab. Click on the “Trackpad Options…” at the bottom section of window. Enable dragging option; we can select the desired dragging behaviour from the drop down list. I wonder why this preference is here, not on trackpad section instead.

From Blogsy Photos

Lion have more Finger Gesture than Snow Leopard

Migrating from Snow Leopard to Lion is confusing and annoying but fun experience. One feature of Lion that I noticed very much is new finger gesture as it's a whole different experience than Snow Leopard.



I noticed first bad feeling when I browsing through Safari and can't double-tap-hold todragging a text to highlight it. I think, oh my God, my trackpad is broken. Calming down, go to preferences panel. I can't find double tap option, hm. Drag n Drop now can be done by three finger, uh. Highlighting text using three finger seems wrong to me. So, no double-tap-hold. (edit: there is double-tap-hold )

Two finger gesture to scroll and zoom is intact. Hm, not really. Scroll direction now has default option to 'natural', iPad like scroll.

No Exposé or Space, just Mission Control. Mission Control contain apps on current active desktop, just like Exposé, and all full screen apps, including other desktop.

Sweeping down four finger now show windows from same apps while sweeping up bring us to Mission Control. Sweeping left or right will bring us to next full screen apps (Desktop's treated as fullscreen apps).

A new gesture is pinching with four finger; pinching down will bring up Launchpad, an apps list just like iOS. A reverse pinching, spread (not sure what it's named), will push all windows to side to show Desktop.

I'm a bit missing the time when I could switch apps by sweeping down my four finger. Moving apps through spaces has gone too, but I guess it's a sacrifice to be able jump too next step.

The Journey of Installing Matplotlib Python Module on OS X Lion

I need matplotlib to plot my python output when I am running my output function generator python code.

This post is a log of what I did to being able to install matplotlib 1.1.0 on python 2.7.2 on my Mac OS X Lion 10.7.2. Yet, it's unfinished job.

First, googling for matplotlib, sourceforge is official home fon it, but it's very slow, I coudn't even open download page with my sluggish connection. So, I searching other source.

Got it from kambing.ui.ac.id, it has pypi repositories, but when it opened, there is no package, just blank folder.

After further googling, I finally found http://pypi.python.org, pypi stand for python package index.

To be able to use pypi package, we have to install pip first, but before that install distribute using this command

curl http://python-distribute.org/distribute_setup.py | python
curl https://raw.github.com/pypa/pip/master/contrib/get-pip.py | python

and then install matplotlib using pip, there is download activity, but got error at the end; must install numpy first, but it got error too as I didn't have GCC on my lion yet, aaarrrgghh... So, the hell of dependencies is begin...

So here I am, searching for 'light' GCC for my lion. I know I should install XCode 4 from Apple , it's free anyway, but I must face the fact that it's including 4.5GB download job, such a tedious job and wasting time; I just want to install 13 MB matplotlib.

I wish I can type the code below

pip install numpy
pip install matplotlib

(pray)