Serving Flask with Nginx

Having spent the majority of my career in the Microsoft stack, lately I’ve decided to step out of my comfort zone and to dive into the world of open source software. The project I’m currently working on at my day job is a RESTful service. The service will be running on a commodity hardware, that should be able to scale horizontally as needed. To do the job I’ve decided to use Flask and Nginx. Flask is a lightweight Python web framework, and nginx is a highly stable web server, that works great on cheap hardware.

In this post I will guide you through the process of installing and configuring nginx server to host Flask based applications. The OS I’ll be using is Ubuntu 13.04.

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JSON2CSV

Last week I’ve needed a utility to convert a file containing json data to csv. I found many online solutions, but for some weird reason they didn’t support nested objects and arrays. So I wrote one, this time in python.

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Unicode file names in Python 2.7

Today I wrote a small script to find and delete duplicate files. To do this task I needed to iterate over files in a specific folder, and calculate md5 checksum for each file:

for folder, subs, files in os.walk(path):
    for filename in files:
        file_path = os.path.join(folder, filename)
	        with open(file_path, 'rb') as fh:
	        	...

If the source folder contains a file or a folder with unicode characters in it, execution of the code results in this bummer:

IOError: [Errno 22] invalid mode ('rb') or filename: 'files\\????????? ????? ????????.txt'

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