python datetime timedelta

import datetime

tmp1 = date1 + date2
tmp2_bool = date1 > date2 # return True
today = datetime.date.today()
five_days_after = today + datetime.timedelta(days=5)
seven_days_before = today - datetime.timedelta(days=7)
seven_days_five_hours_before = today - datetime.timedelta(days=7, hours=5)

date1 = datetime.timedelta(hours=5) # 5 hours later from now

date2 = datetime.timedelta(days=-5) # 5 days earlyer from today

.

correction of mem leak of django + apache

The code below consume large memory and don't return.
Apache process memory will keep increasing with the code below.

aaa = data.objects.all().order_by('-id')
count_of_aaa = len(aaa)

The problem is "len(aaa)". (dunno why)
It should be replace by ...

count_of_aaa = aaa.count()

Then no mem leak occur.

adobe reader font fix

ref: http://ubuntuforums.org/showthread.php?t=1006831

Thread: [SOLVED] Adobe Reader Font Fixed

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1. December 10th, 2008#1

   

   MrFSL 

   Dipped in Ubuntu

   Join Date

   Mar 2006

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   [SOLVED] Adobe Reader Font Fixed

32bit Hardy Install

I searched the forum and could not find an answer to this problem so I am posting it here. Hopefully it helps some people.

I use the adobe reader 8.1.3 package for pdf files:
Located Here

I have noticed that often I get errors saying that a certain font cannot be displayed. This happens frequently with Microsoft fonts like Arial,Bold or Arial,Narrow. In the reader these fonts come out as little black dots instead.

I simply could not find a fix here nor on the Adobe forums. After some hacking though I have a solution:

First install the msttcorefonts package (if you haven't already)

Code:

sudo apt-get install msttcorefonts

Next edit the the reader's startup file:

Code:

sudo gedit /opt/Adobe/Reader8/bin/acroread

And uncomment these two lines:

Code:

ACRO_ENABLE_FONT_CONFIG=1
export ACRO_ENABLE_FONT_CONFIG

Now reader acts as should be expected.

AR8161 on-board lan to work (ASUS P8H77-V board)

sudo apt-get install linux-headers-generic build-essential
wget http://www.orbit-lab.org/kernel/compat-wireless-3-stable/v3.5/compat-wireless-3.5.1-1-snpc.tar.bz2
tar -xf compat-wireless-3.5.1-1-snpc.tar.bz2
cd compat-wireless-3.5.1-1-snpc
./scripts/driver-select alx
make
sudo make install
sudo modprobe alx


http://ubuntuforums.org/showthread.php?t=2050126&highlight=p8h77-v

Edit mime type

Install file type editor ( command name : assogiate )

(some file types are unable to edit.)

or

cd [path]
 where, path = /usr/local/share/mime  or ~/.local/share/mime or /usr/share/mime
cd packages
gedit [file_type_you_want]

sudo update-mime-database [path]

** Don't forget BACKUP !