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Monthly Archives: July 2015

Instantiation Python classes

Ok I wrote a great article in instanseation Python classes but I guess it is deleted somehow. 😦 πŸ˜›

Following was the refrence for Future:
http://www.diveintopython.net/object_oriented_framework/instantiating_classes.html

Docker and it’s promises (Only hello world)

This is quite on the way thing about Docker,

You just become about the Technology that you know you are going to use a lot for rest of your life,

Ok Lets Dock…!!

Running Docker+Django on Production is bit different then running on Development server.

At production we need WSGI, But Why Wsgi.. ? Security?

Well Security is not the only thing, But it makes lot of Sense when using WSGI, Because all the Python things does not come with Development server, They may come But having WSGI with you is far better to Play anything on Apache, Nginx or on whatever, Ok WSGI is fine to have right now..

 

At present I don’t want to make things not complicated for me.

When usingΒ  Docker there are many thing those we need to look after to build our Docker Image, But if there are already available images then we can work on that and have fun to use them for our goodness.

This Guy is awesome: https://registry.hub.docker.com/u/grahamdumpleton/mod-wsgi-docker/

He provides everything you need to know about Docker and WSGI with Django all the time…

So WSGI is just like writing your Python scripts and run those on browser,..

A simple WSGI:file

<code>

def application(environ, start_response):
 status = '200 OK'
 output = 'Hello World!'
response_headers = [('Content-type', 'text/plain'),
 ('Content-Length', str(len(output)))]
 start_response(status, response_headers)
return [output]

</code>

Create a <strong>new directory</strong> and save above file as wsgi.py in that directory.

Now time for <strong>Dockerization</strong>

Now in the same directory Create Dockerfile. To avoid confusion I mean to say $ nano Dockerfile

yes Dockerfile is a text file.

and add following two line:

<code>

FROM grahamdumpleton/mod-wsgi-docker:python-2.7-onbuild
CMD [ "wsgi.py" ]

</code>

The above lines of code say many things itself, (at least I believe that)

then run following two commands one by one: obviously πŸ˜‰

<code>

docker build -t my-python-app .
docker run -it --rm -p 8000:80 --name my-running-app my-python-app

</code>

The Hello World WSGI application will now be accessible by pointing your browser at port 8000 on the Docker host.

http://<your-ip&gt;:8000

 

Docker compose Docker 1.6

Ok I deployed Django Project on Server in just 50 seconds and it is as much as secore,robust and as fast as possible as it could be in real life.

There are things we need to discuss first.

Docker 1.6 uses docker-compose to deploy Django Application on the server:

http://docs.docker.com/compose/django/

What is Docker-Compose?

Compose is a tool for defining and running multi-container applications with Docker. With Compose, you define a multi-container application in a single file, then spin your application up in a single command which does everything that needs to be done to get it running.

Ok let’s tune for more. Docker ❀ ❀

Algorithms are changing the world

Most of the times I got my self to much overwhelmed when I see Awesome-Automation movies, Ok let’s come to the point that Algorithms are changing the world, Yes they are completely:

Now a programmer can define set of instructions which can understand the feelings of any person and according to those feelings program can also act the things:

<Simple version is as follows> :Mostly Pythonic:

def angry:

“what someone do when someone is angry”

def angry_prevention:

“What computer should do when someone is angry”

def happy:

“What someone do when someone is happy”

def happy_prevention:

“Over-happiness could be harmful to someone” (Just a random thought)

<<<<<<<<<<<<So now we have defined two four funcations>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

A system which can detect facial expressions of human is already developed so some if-else statements and we can control a human in two conditions which is happy and sad:

One is left called “Normal condition”——> This needs time because being normal is complex. πŸ˜‰ so as defining to πŸ˜‰

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