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Python Weekly 238

News

DjangoCon US 2016 Call for Proposals 


Articles, Tutorials and Talks

Using AlexaPi on Raspberry Pi Zero
Learn how to use AlexaPi tool to turn a Raspberry Pi Zero into an Amazon Echo-like device. Ask the Pi questions and Amazon's Alexa voice service will respond with answers!

Podcast.__init__ Episode 50 - Pyjion with Brett Cannon and Dino Viehland
In an attempt to improve the performance characteristics of the CPython implementation, Dino Viehland began work on a patch to allow for a pluggable interface to a JIT (Just In Time) compiler. His employer, Microsoft, decided to sponsor his efforts and the result is the Pyjion project. In this episode we spoke with Dino Viehland and Brett Cannon about the goals of the project, the progress they have made so far, and the issues they have encountered along the way. We also made an interesting detour to discuss the general state of performance in the Python ecosystem and why the GIL isn't the bogeyman it's made out to be.

Introduction to Linear Programming with Python and PuLP
Linear Programming, also sometimes called linear optimisation, involves maximising or minimising a linear objective function, subject to a set of linear inequality or equality constraints. It has great applications in the field of operations management but can be used to solve a range of problems. In this series of posts, we explore some linear programming examples, starting with some very basic Mathematical theory behind the technique and moving on to some real world examples. We will be using python and the PuLP linear programming package to solve these linear programming problem. 

Data Normalization in Python
In this post we'll be digging into some MLB payroll data. In particular I'm going to show you how you can use normalization techniques to compare seemlingly incomparable data! 

Interactive Data Analysis with Python and Excel 


I have written several times about the usefulness of pandas as a data manipulation/wrangling tool and how it can be used to efficiently move data to and from Excel. There are cases, however, where you need an interactive environment for data analysis and trying to pull that together in pure python, in a user-friendly manner would be difficult. This article will discuss how to use xlwings to tie Excel, Python and pandas together to build a data analysis tool that pulls information from an external database, manipulates it and presents it to the user in a familiar spreadsheet format.

Planning Bus Trips with Python & Singapore's Smart Nation APIs
This post will explore one dataset: the LTA Data Mall, by Singapore's Land Transport Authority. This dataset provides both offline geographical data on roads & public transport, as well as real-time data on things like bus arrivals and taxis. Using this dataset, the Python programming language, and basic programming and data-science techniques, we will build a trip planner to find the shortest bus commute from A to B, but powered by real data and bounded by real-world limitations.

Raspberry Pi & Python Internet 'Thing' Pt. 3 with Tony D!
In this episode we add a DHT temperature & humidity sensor to the Pi and have it dynamically render its data in a chart on the webpage.

Using Django signals for database logging
This article presents a database logging solution inspired from the Observer Design Pattern, which uses Django signals, sent from various sources in a unified fashion.

A practical introduction to Functional Programming for Python coders

Page ranking my twitter network using Python

Scalable and resilient Django with Kubernetes


Interesting Projects, Tools and Libraries

Caravel
Caravel is a data exploration platform designed to be visual, intuitive, and interactive.

TFLearn
TFlearn is a modular and transparent deep learning library built on top of Tensorflow. It was designed to provide a higher-level API to TensorFlow in order to facilitate and speed-up experimentations, while remaining fully transparent and compatible with it.

lda2vec
The lda2vec model tries to mix the best parts of word2vec and LDA into a single framework. word2vec captures powerful relationships between words, but the resulting vectors are largely uninterpretable and don't represent documents. LDA on the other hand is quite interpretable by humans, but doesn't model local word relationships like word2vec. We build a model that builds both word and document topics, makes them interpreable, makes topics over clients, times, and documents, and makes them supervised topics.

fbtftp
fbtftp is Facebook's implementation of a dynamic TFTP server framework. It lets you create custom TFTP servers and wrap your own logic into it in a very simple manner. Facebook currently uses it in production, and it's deployed at global scale across all of our data centers.

JavaScripthon


JavaScripthon is a small and simple Python 3.5+ translator to JavaScript which aims to be able to translate most of the Python's core semantics without providing a full python-in-js environment, as most existing translators do. It tries to emit code which is simple to read and check and it does so by switching to ES6 construct when necessary. This allows to simplify the needs of polyfills for many of the expected Python behaviors.

ActivFlow
ActivFlow is a generic, light-weight and extensible workflow engine for agile development and automation of complex Business Process operations. Developers can emphasize towards mapping the Business Process model as ActivFlow workflow without having to worry about implementing the core workflow processing logic. The generic implementation of the workflow engine manages the automation of the Business Processes from start to finish as per the defined configuration.

Zeep
A modern/fast python SOAP client based on lxml / requests.

PyFunctional
Python library for creating data pipelines with chain functional programming.

pandas-summary
An extension to pandas dataframes describe function.

python-lambda
A Python library to assist in developing functions for AWS Lambda.

RouteSploit
The RouteSploit Framework is an open-source exploitation framework dedicated to embedded devices. It consists of various modules that aids penetration testing operations.

AjguDB
AjguDB is a graph database (graphdb) written in Python with Gremlin querying.

django-serial-forms
Constructible, introspectable serializers and forms.


New Releases

NumPy 1.11.0 
This release supports Python 2.6 - 2.7 and 3.2 - 3.5 and contains a number of enhancements and improvements. 

Anaconda 4.0 

Django bugfix releases issued: 1.9.5 and 1.8.12

 

         
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