Matthew Poer matthewpoer

Code samples to demonstrate Python iterators and the use of yield statements to create a generator.

Examples based directly on the instruction from Programiz' YouTube Channel

	#!/usr/bin/env python3
	import requests
	f=o=i=p=""
	while not (f and o and i and p):
	for word in requests.get("https://random-word-api.herokuapp.com/word?lang=en&number=50").json():
	if word[0] == "f":
	f = word
	if word[0] == "o":
	o = word
	if word[0] == "i":

	Started worker and queued sleeper 3 ... 0.00016
	running worker for 3 ... 0.00063
	Started worker and queued sleeper 9 ... 0.00069
	running worker for 9 ... 0.00107
	Started worker and queued sleeper 15 ... 0.0011
	running worker for 15 ... 0.00145
	Started worker and queued sleeper 12 ... 0.00151
	running worker for 12 ... 0.0018
	Started worker and queued sleeper 6 ... 0.00192
	running worker for 6 ... 0.0022

	global class EmptyUpdateBatch implements Database.Batchable<sObject> {
	global Database.QueryLocator start(Database.BatchableContext BC) {
	String query = 'SELECT Id FROM !!ObjectType!! WHERE Field = NULL';
	return Database.getQueryLocator(query);
	}
	global void execute(Database.BatchableContext BC, List<!!ObjectType!!> records) {
	update records;
	}
	global void finish(Database.BatchableContext BC) {}
	}

	matthewpoer@magpie sdp % python3
	Python 3.9.7 (default, Oct 13 2021, 06:45:31)
	[Clang 13.0.0 (clang-1300.0.29.3)] on darwin
	Type "help", "copyright", "credits" or "license" for more information.

	>>> object_one = {"primary key":"super duper"}
	>>> object_two = {"primary key":"override", "additional key":"so fun"}
	>>> object_one.update(object_two)
	>>> object_one
	{'primary key': 'override', 'additional key': 'so fun'}

	import time
	barList = ["\|","/","-","\\"]
	barListIter = iter(barList)
	ten_seconds_away = int(time.time()) + 10
	while int(time.time()) < ten_seconds_away:
	remaining = ten_seconds_away - int(time.time())
	bar = next(barListIter, None)
	if not bar:
	barListIter = iter(barList)
	bar = next(barListIter)


	# only for the Mac folks so we can `sed` like a real boy
	brew install gnu-sed
	PATH="$(brew --prefix)/opt/gnu-sed/libexec/gnubin:$PATH"

	# props to Gearset's blog
	# https://gearset.com/blog/installed-packages-v43-and-activaterss/
	cd force-app/main/default/installedPackages
	sed -i 's/ xsi:nil="true"\/>/>false<\/activateRSS>/g' *xml
	cd ../../../../

	>>> dictionary = {"one":"one value", "two":"two value"}
	>>> new_dictionary = {"foo":"foo value", "bar":"bar value"}
	>>> dictionary.update(new_dictionary)
	>>> print(dictionary)
	{'one': 'one value', 'two': 'two value', 'foo': 'foo value', 'bar': 'bar value'}

	>>> dictionary = {"one":"one value", "two":"two value"}
	>>> new_dictionary = {"foo":"foo value", "bar":"bar value"}
	>>> dictionary.update({**new_dictionary})
	>>> print(dictionary)

	class CustomException(Exception):
	def __init__(self, extra_context, message):
	self.extra_context = extra_context
	self.message = message
	super().__init__(self.message)
	def __str__(self):
	return f'Shit going down! {self.message} \| extra context: {self.extra_context}'

	try:
	raise CustomException("extra context", "some message")