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Zaal4 Thomas Levine - Data acquisition with Vlermv database

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Published on Jul 6, 2015

Data acquisition with Vlermv database

I like to store my data as ordinary files whenever I can. This way, I'm not locked into a particular database software, I can use ordinary file manipulation tools for debugging, and I don't have to remember how my database works in order to look at my data. But accessing files is very verbose in Python! My solution is Vlermv (https://pypi.python.org/pypi/vlermv), an open source NoSQL database implemented as a Python library that lets me pretend that my filesystem is a dictionary.

I'll start out by showing you how it works and how convenient it is. I designed it originally for my own use in data acquisition systems, and I will show you how I use it in my practice. Next, I'll show you how it influences my approaches to testing and debugging. I wrote it, so I'll also talk about some interesting parts of the implementation. And finally, I'll comment on the overuse of fancy database software and half-joke about how Mongo should often be replaced with Vlermv.

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