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# 17 list comprehension problems in python

fruits = ['mango', 'kiwi', 'strawberry', 'guava', 'pineapple', 'mandarin orange']

numbers = [2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 17, 19, 23, 256, -8, -4, -2, 5, -9]

# Example for loop solution to add 1 to each number in the list
numbers_plus_one = []
for number in numbers:
    numbers_plus_one.append(number + 1)

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Transforming Code into Beautiful, Idiomatic Python

Notes from Raymond Hettinger's talk at pycon US 2013 video, slides.

The code examples and direct quotes are all from Raymond's talk. I've reproduced them here for my own edification and the hopes that others will find them as handy as I have!

Looping over a range of numbers

for i in [0, 1, 2, 3, 4, 5]:

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def identity(nums):
    """Identity:

    Given a list of numbers, write a list comprehension that produces a copy of the list.

        >>> identity([1, 2, 3, 4, 5])
        [1, 2, 3, 4, 5]

        >>> identity([])
        []

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#!/usr/bin/python
#
#simple app to read string from serial port
#and publish via MQTT
#
#uses the Python MQTT client from the Mosquitto project
#http://mosquitto.org
#
#Andy Piper http://andypiper.co.uk
#2011/09/15

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import serial
import csv
import re
import matplotlib.pyplot as plt
import pandas as pd
 
portPath = "/dev/ttyACM0"       # Must match value shown on Arduino IDE
baud = 115200                     # Must match Arduino baud rate
timeout = 5                       # Seconds
filename = "data.csv"

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# Add these two gems
gem 'ice_cube',                     '0.9.3'
gem 'squeel',                       '1.0.16'

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Building a new RStudio Server AMI

The steps below can be followed to create a new AMI for use with Amazon EC2 instances that includes the latest versions of R, RStudio, and RStudio Server. The idea is inspired by the work of Louis Aslett, who creates and hosts his own public AMIs for RStudio. My own goal was to create an AMI with RStudio v1.0.0 or higher, such that I could use the recent R Notebooks feature. However, the instructions should generally apply for whenever you might be impatient accessing the latest version of R-related software on AWS (via an interactive browser interface...).

Getting started

1. Create a new EC2 instance with the latest Ubuntu AMI (should be fine to do with Spot); based on Louis Aslett's AMI, I opted to include a general purpose SSD EBS volume with 10GB of storage space
2. SSH into the instance

Downloading/installing RStudio Server

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Purpose

Bootstrap knowledge of LLMs ASAP. With a bias/focus to GPT.

Avoid being a link dump. Try to provide only valuable well tuned information.

Prelude

Neural network links before starting with transformers.

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short url: caseywatts.com/selfpublish

my book is out! an applied psychology / self-help book targeted at developers: Debugging Your Brain

---

Markdown --> PDF (as a booklet!)

Markdown --> EPUB and MOBI

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Extracting Emoji From Slack!

Slack doesn't provide an easy way to extract custom emoji from a team. (Especially teams with thousands of custom emoji) This Gist walks you through a relatively simple approach to get your emoji out.

If you're an admin of your own team, you can get the list of emoji directly using this API: https://api.slack.com/methods/emoji.list. Once you have it, skip to Step 3

HOWEVER! This gist is intended for people who don't have admin access, nor access tokens for using that list.

Follow along...