bearfrieze

Comprehensions in Python the Jedi way

by Bjørn Friese

Beautiful is better than ugly. Explicit is better than implicit.

-- The Zen of Python

I frequently deal with collections of things in the programs I write. Collections of droids, jedis, planets, lightsabers, starfighters, etc. When programming in Python, these collections of things are usually represented as lists, sets and dictionaries. Oftentimes, what I want to do with collections is to transform them in various ways. Comprehensions is a powerful syntax for doing just that. I use them extensively, and it's one of the things that keep me coming back to Python. Let me show you a few examples of the incredible usefulness of comprehensions.

danielgomezrico

<?xml version="1.0" encoding="utf-8"?>
<!-- This file should be outside of release manifest (in this case app/src/mock/Manifest.xml -->
<manifest
  xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.example.tests">
  
  <!-- For espresso testing purposes, this is removed in live builds, but not in dev builds -->
  <uses-permission android:name="android.permission.SET_ANIMATION_SCALE" />
  <uses-permission android:name="android.permission.DISABLE_KEYGUARD" />
  <uses-permission android:name="android.permission.WAKE_LOCK" />

hofmannsven

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