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𝐀 = {'😀': 5}
for ℹ︎ in range(20):
    # print(i, ℹ︎, i == ℹ︎)  # NameError: name 'i' is not defined.
    for _,__ in 𝐀.items():
        if __ == ℹ︎:
            print(_, ℹ︎)

print(𝐀)  # Prints dictionary in 𝐀
print(A)  # Also prints dictionary in 𝐀!
print(𝐀 is A)  # True

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class IndexFormatter:
    def __init__(self, volumeId: int):
        self.itemPages = (
            ItemPage.objects.filter(volume__id=volumeId)
            .order_by('item__topic__name', F('page') * 1, 'item__name'))

    def format(self) -> str:
        """
        Format the index for printing.
        """

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sloanlance

Say Goodbye to Loops in Python, and Welcome Vectorization!

Use Vectorization — a super fast alternative to loops in Python

By Anmol Tomar on CodeX

Nov 29, 2022

Introduction

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jq Notebook

Useful notes about using jq.

1. Print all paths to values
   • jq -c paths Prints each path as an array and doesn't show values.
   • jq --stream 'select(.[1]|scalars!=null) | "\(.[0]|join(".")): \(.[1]|tojson)"' example.json
     Nearly perfect. If each path shown began with . and array indices were enclosed in square brackets, then each one would be a valid jq query string.

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yq Notebook

Useful notes about using yq

1. Display the path to each value in a YAML file

   $ cat << EOF | yq e '.. | select(. == "*") | {(path | join(".")): .} ' -
   > a:
   >   b: foo

> c: bar

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#!/bin/sh --

# Set timestamps of files in a cloned git repository to when they were last committed.

# Default: All git-controlled files in current directory, recursively 
if [ ${#} = 0 ]; then
  files="$(git ls-files -z | xargs -0 echo)"
else
  files="${@}"
fi

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import boto3
import os
from contextlib import closing
from botocore.exceptions import ClientError


def object_exists(s3, bucket, key):
    try:
        boto3.resource('s3').Object(bucket, key).load()
        return True

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#!/bin/sh --

# Toggle macOS Background Sounds on or off.
#
# See the System Settings panel for Accessibility > Audio to change settings
# like the sound played, volume level, and automatic stop.

# `read` returns an integer, but…
if [ $(defaults read com.apple.ComfortSounds 'comfortSoundsEnabled') = 0 ]
then