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  • By Lesley Cordero
    Getting Things Done in Trello with Python, Flask and Twilio SMS DtWKZlxXe9iGEfIBw3E0HwBIbjtjcjBCY9-_aTM8b63Nr0a3PXzG-2mtaryFhcav6UKEEl3VDbnfo7ecyhMaojdxHa-rVN_XczlQIgWOUH5WYSTwu64eqACinscIcypwwYb_R86p

    Do you ever have so many things to do that you can’t even decide where to begin? This is me, all the time. So every once in a while, when I’m a bit overwhelmed by all the tasks I have to do, I make my code decide for me. In this tutorial, we’ll build a system that responds to a text with a to-do item. I’m an avid Trello user so we’ll use the Trello API and Twilio API to send tasks via SMS.

    First, we have to set our environment up. This guide was written in Python 3.6. If you haven't already, download Python, Pip and Ngrok. Next we will install virtualenv to create and activate your virtual environment by entering the followings command in your command-line:

    pip3 install virtualenv==15.1.0
    python3 -m venv twello
    cd twello
    source ./bin/activate
    

    Next, you’ll need to …

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  • By Lesley Cordero
    Keeping Track of GitHub Pull Requests with Python and Twilio SMS yaW88_0ge8p9mVx7EfR84H0ltyGS_BHTt5t4-adBtbtzk1GnKT-HjSHHAWwNlQZ-hL4PmTn2gIa4iCuZIxrEmaSYPjCCFnl1cr_GUeUqvrxpkjQYXZb8uXscr-ONFSgPwl79Yc6M

    If you're working on an urgent project in GitHub with other developers, it's handy to get immediate notifications by SMS. However, there is no SMS option out of the box! So I said, “Enough is enough; I'll start my own notification system!”

    In this tutorial, I'll walk you through the steps of building out the beginnings of a notification system for GitHub pull requests. More specifically, we will use the GitHub and Twilio APIs in Python to send texts notifying you when a new pull request has been submitted.

    Getting Started

    First, we have to set our environment up. This guide was written in Python 3.6. If you haven't already, download Python and Pip. Next we will install virtualenv to create and activate your virtual environment by entering the followings command in your command-line:

    pip3 install virtualenv==15.1.0
    python3 -m venv ghpull
    cd ghpull
    source …
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  • By Lesley Cordero
    Data Science and Linear Algebra Fundamentals with Python, SciPy, & NumPy linear-algebra

    Math is relevant to software engineering but it is often overshadowed by all of the exciting tools and technologies. In the field of data science, however, being familiar with linear algebra and statistics is very important to statistical analysis and prediction. In this tutorial, we’ll use SciPy and NumPy to learn some of the fundamentals of linear algebra and statistics.

    Getting Started

    We’ll  be using Python to show how different statistical concepts can be applied computationally. Specifically, we’ll work with NumPy, a scientific computing module for Python.
    This guide was written in Python 3.6. If you haven’t already, download Python and Pip. Once you have Python and Pip installed, clone this repo using Git as follows:

    git clone git@github.com:lesley2958/dod-math.git
    

    The Git repository contains all of the data you’ll need for this tutorial.
    Next, install the NumPy, SciPy, and sklearn …

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  • By Lesley Cordero
    Build a Bot Powered Slack Game with Python laptop_teaser_hero

    One of my all-time favorite Facebook groups is “DogSpotting.” For those of you unfamiliar with this revolutionary group, it’s a Facebook group dedicated to posting pictures of random dogs you see as you go along your regular day. There are tons of “spotting” rules, but any way you slice it, this group is awesome.

    Using this model for inspiration, I built a Slack bot for a college student group I was involved in once upon a time. We named it ADI Spotting and dedicated an entire Slack channel to posting “spottings” of whenever we’d see each other on campus, outside of our own events and meetings. In this tutorial, I will walk you through the steps to create this bot on your own Slack organization.

    Python Environment Setup

    But before we even get started, we have to set our environment up. This guide was written in Python …

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  • By Lesley Cordero
    Embedding Maps with Python & Plotly plot_from_API_(15)

    Data Visualization is an art form. Whether it be a simple line graph or complex objects like wordclouds or sunbursts, there are countless tools across different programming languages and platforms. The field of geospatial analysis is no exception. In this tutorial we’ll build a map visualization of the United States Electoral College using Python’s plotly module and a Jupyter Notebook.

    Python Visualization Environment Setup

    This guide was written in Python 3.6. If you haven’t already, download Python and Pip. Next, you’ll need to install the plotly module that we’ll use throughout this tutorial. You can do this by running the following in the terminal or command prompt on your operating system:

    pip3 install plotly==2.0.9
    pip3 install jupyter==1.0.0
    

    Since we’ll be working with Python interactively, using the Jupyter Notebook is the best way to get the most out of this tutorial. …

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  • By Lesley Cordero
    Making Sentiment Analysis Easy With Scikit-Learn Scikit-learn logo

    Sentiment analysis uses computational tools to determine the emotional tone behind words. Python has a bunch of handy libraries for statistics and machine learning so in this post we’ll use Scikit-learn to learn how to add sentiment analysis to our applications.

    Sentiment Analysis isn’t a new concept. There are thousands of labeled datasets out there, labels varying from simple positive and negative to more complex systems that determine how positive or negative is a given text.

    For this post, we’ll use a pre-labeled dataset consisting of Twitter tweets that are already labeled as positive or negative. Using this data, we’ll build a model that categorizes any tweet as either positive or negative with Scikit-learn.

    Scikit-learn is a Python module with built-in machine learning algorithms. In this tutorial, we’ll specifically use the Logistic Regression model, which is a linear model commonly used for classifying binary data.

    Environment Setup

    This …

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  • By Lesley Cordero
    Basic Statistics in Python with NumPy and Jupyter Notebook Jupyter, Python and NumPy logos

    While not all data science relies on statistics, a lot of the exciting topics like machine learning or analysis relies on statistical concepts. In this tutorial, we’ll learn how to calculate introductory statistics in Python.

    What is Statistics?

    Statistics is a discipline that uses data to support claims about populations. These “populations” are what we refer to as “distributions.” Most statistical analysis is based on probability, which is why these pieces are usually presented together. More often than not, you’ll see courses labeled “Intro to Probability and Statistics” rather than separate intro to probability and intro to statistics courses. This is because probability is the study of random events, or the study of how likely it is that some event will happen.

    Environment Setup

    Let’s use Python to show how different statistical concepts can be applied computationally. We’ll work with NumPy, a scientific computing module in Python.
    This guide was …

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  • By Lesley Cordero
    How to Build A Boba Tea Shop Finder with Python, Google Maps and GeoJSON Boba tea

    If you plant me anywhere in Manhattan, I can confidently tell you where the nearest bubble tea place is located. This may be  because I have a lot of them memorized, but for the times my memory betrays me, luckily I have the boba map on my data blog. In this tutorial, we’ll use a combination of Python, the Google Maps API, and geojsonio to create what can only be described as the most important tool in the world: a boba map.

    Environment & Dependencies

    We have to set our environment up before we start coding. This guide was written in Python 3.6. If you haven’t already, download Python and Pip. Next, you’ll need to install several packages that we’ll use throughout this tutorial on the command line in our project directory:

    pip3 install googlemaps==2.4.6
    pip3 install geocoder==1.22.4
    pip3 …
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  • By Lesley Cordero
    Analyzing Messy Data Sentiment with Python and nltk Python plus NLTK library.

    Sentiment analysis uses computational tools to determine the emotional tone behind words. This approach can be important because it allows you to gain an understanding of the attitudes, opinions, and emotions of the people in your data.
    At a higher level, sentiment analysis involves natural language processing and artificial intelligence by taking the text element, transforming it into a format that a machine can read, and using statistics to determine the actual sentiment.
    In this tutorial, we’ll use the natural language processing module, nltk, to determine the sentiment of tweets from Twitter.

    Sentiment analysis on text

    Sentiment analysis isn’t a new concept. There are thousands of labeled data out there, labels varying from simple positive and negative to more complex systems that determine how positive or negative is a given text. Because there’s so much ambiguity within how textual data is labeled, there’s no one way of building …

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  • By Lesley Cordero
    What’s in your Pocket? Visualizing your Reading List with Python 9cjLsY7Gh4jH27h_x6A0L8f5wzK1tCUtO-Ewl-SviVOIIfkCvbizM6hMWmGxZWf6D-RoeLM5nYE-46grk2dOQeiK9K5tCKQRkQeH_spOpsoGz8M1DP8VoDuOZ8GShdpca1fVokbO

    I’m going to give you a little bit of a spoiler alert: I’ve read the equivalent of about 14 books this past year. Now I’m not a cover-to-cover novel reading person — I consume most of my content in the form of articles and tutorials. So while I’m feverishly reading all the time I never have a sense of how much I’m actually reading. After all it’s not like I’m exactly keeping track of how many articles I’m reading.

    But I could! What I didn’t mention is that my reading flow is almost completely through Pocket. For those of you who don’t know, Pocket is a convenient way to save content (whether that be in the form of articles, video, etc) for later use. This is especially important to me because it gives me an easy way of viewing content while I don’t have internet service. In other words, …

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