Python

Python Developer’s Meetup Nepal #13 Question Solution

Q: Write a python script that recursively walks all sub-directories and searches all files with extension *.png or *.PNG and append them to the list.

Converting list of images to PDF in Ubuntu

Let’s use ImageMagick tool. Normally it is installed in Ubuntu. If you need to install it then run:

sudo apt-get install imagemagick

While learning Python in the beginning, i skipped the portion of the chapters on Decorators. After i worked on Flask and Django, I was introduced with the Decorators.

Let us consider a simple flask app example:

Create folder ’templates’ inside ‘shortenersite’ and then inside ’templates’ create folder ‘shortenersite’.

Inside “shortenersite/templates/shortenersite/” create ‘base.html’ and ‘index.html’. So now paste the following to them.

Now we will be working with our actual URLs and Views of our site.

Open up your “urlshortener/urls.py” and add the following code to it:

[urlshortener/urls.py]

Now, Let us create a Django app. From your project’s root directory run this command

django-admin startapp shortenersite

Creating a Django project

django-admin startproject urlshortener

Now you will see new directory “urlshortener”. Now our folder structure looks something like:

I finally got the time to write a Django tutorial. In this tutorial we are building URL Shortener. If you are confused with what we are building then we are building something similar to (bit.ly) or (goo.gl).