django-admin-tools 0.5.1 install

pip install --allow-unverified django-admin-tools django-admin-tools==0.5.1

Pyhon features and tricks

http://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html

MySql compressed row format ("Row size too large" error resolve)

I have follow error:

Traceback (most recent call last):

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 222, in run_from_argv

    self.execute(*args, **options.__dict__)

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 255, in execute

    output = self.handle(*args, **options)

  File "/home/vinger4/Projects/a360/router/management/commands/places_update.py", line 428, in handle

    airport.save()

  File "/home/vinger4/Projects/a360/content/models.py", line 545, in save

    super(Airport, self).save(*args, **kwargs)

  File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 546, in save

    force_update=force_update, update_fields=update_fields)

  File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 626, in save_base

    rows = manager.using(using).filter(pk=pk_val)._update(values)

  File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py", line 605, in _update

    return query.get_compiler(self.db).execute_sql(None)

  File "/usr/local/lib/python2.7/dist-packages/django/db/models/sql/compiler.py", line 1020, in execute_sql

    cursor = super(SQLUpdateCompiler, self).execute_sql(result_type)

  File "/usr/local/lib/python2.7/dist-packages/django/db/models/sql/compiler.py", line 846, in execute_sql

    cursor.execute(sql, params)

  File "/usr/local/lib/python2.7/dist-packages/django/db/backends/mysql/base.py", line 128, in execute

    six.reraise(utils.DatabaseError, utils.DatabaseError(*tuple(e.args)), sys.exc_info()[2])

  File "/usr/local/lib/python2.7/dist-packages/django/db/backends/mysql/base.py", line 120, in execute

    return self.cursor.execute(query, args)

  File "/usr/lib/python2.7/dist-packages/MySQLdb/cursors.py", line 174, in execute

    self.errorhandler(self, exc, value)

  File "/usr/lib/python2.7/dist-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler

    raise errorclass, errorvalue

DatabaseError: (1118, 'Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.')

Set ROW_FORMAT=COMPRESSED for my_table:

mysql> SET GLOBAL innodb_file_format=Barracuda; SET GLOBAL innodb_file_per_table=ON; ALTER TABLE my_table ROW_FORMAT=COMPRESSED;

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 258 rows affected (0.35 sec)

Records: 258  Duplicates: 0  Warnings: 0

mysql> 

Java 7 one-liner to read file into string

http://jdevelopment.nl/java-7-oneliner-read-file-string/?utm_content=buffer8a345&utm_medium=social&utm_source=linkedin.com&utm_campaign=buffer

generate html for correct view SVG

<embed src="GDP.svg" width="5000" height="8000"

type="image/svg+xml"
pluginspage="http://www.adobe.com/svg/viewer/install/" />

Neo4j and Django

https://github.com/scholrly/neo4django

fast prototype your web application

https://www.easel.io/

cheap hosting $1.25

http://infiumhost.com/hosting.html

curl - measure time

curl -o /dev/null -s -w %{time_total}\\n -X POST http://localhost:7474/db/data/ext/GetAllGoods

opendata

http://census.okfn.org/

https://nycopendata.socrata.com/

https://dati.lombardia.it/

screen brightness on HP dv7

Original: http://ubuntuforums.org/showthread.php?t=1906803

Run this in a terminal:

Code:

sudo nano /etc/default/grub

and change this line:

Code:

GRUB_CMDLINE_LINUX=""

to:

Code:

GRUB_CMDLINE_LINUX="acpi_backlight=vendor"

Save the file and run:

Code:

sudo update-grub

Now reboot. Your function keys for brightness should now work.

Disable second video adapter every time your computer boots (Ubuntu)

The commands in rc.local are executed every time your computer boots.

So you just need to add the commands that power down the discrete adapter right before you chown the vgaswitcheroo/switch file

I turn off my radeon adapter every time I boot as well. My rc.local is very simple:

# [...]
# By default this script does nothing.

# turn off the discrete video adapter
echo OFF > /sys/kernel/debug/vgaswitcheroo/switch

exit 0

I don't bother with any other scripts, but if you do they should still work just fine. Just put the echo OFF before the chown or any of the other user scripts.

Ubuntu has hibernation turned off by default, but note that if you do turn it on this method doesn't get a chance to run when you come out of hibernation (not sleep) so both adapters will be powered up.

glassdoor - service job search

http://www.glassdoor.com

maintenance wifi in DELL on Ubuntu

apt-get install bcmwl-kernel-source

matplot D3 viewer

http://jakevdp.github.io/blog/2013/12/19/a-d3-viewer-for-matplotlib/?goback=%2Egde_25827_member_5819742066535579650#%21

Paste together two pdf files

pdftk titul.pdf Chapter1.pdf Chapter2.pdf Chapter3.pdf output wholeBook.pdf

Java: Cobertura coverage report

Original here: http://stackoverflow.com/questions/2006014/how-to-generate-cobertura-code-coverage-report-using-maven-from-hudson

To run Cobertura during package phase, do

 <plugin>  
            <groupId>org.codehaus.mojo</groupId>  
            <artifactId>cobertura-maven-plugin</artifactId>  
            <version>2.5.2</version>  
            <configuration>  
                <formats>  
                    <format>xml</format>  
                </formats>  
            </configuration>  
            <executions>  
                <execution>  
                    <phase>package</phase>  
                    <goals>  
                        <goal>cobertura</goal>  
                    </goals>  
                </execution>  
            </executions>  
   </plugin>         

Heres an example of pom

http://macgyverdev.blogspot.com/2011/04/development-environment-for-google-app.html

And here how to integrate in Hudson http://macgyverdev.blogspot.com/2011/04/hudson-continous-integration-for-google.html

pycallgraph

You may import pycallgraph as a module and run the trace graph within your application.

Just before your first line of code you want to graph, put in the following code:

import pycallgraph
pycallgraph.start_trace()

To stop the trace and generate the graph, put in the following code /usually at the end of your program/:

pycallgraph.make_dot_graph('test.png')

The default is to output in png with with the dot tool. You can change them by specifying arguments:

pycallgraph.make_dot_graph('test.jpg', format='jpg', tool='neato')

Use notification in Ubuntu

Use crontab and notify-send:

EDITOR=gedit crontab -e

Add schedule:

15 12 * * 1-5 DISPLAY=:0.0 notify-send --urgency normal -i typing-monitor “Lunch” “Lunch”
15 17 * * 1-5 DISPLAY=:0.0 notify-send --urgency normal -i ktip “End of work day” “go home”

Save and close.

Install Oracle Java 7 in Ubuntu

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer