Dev Aggarwal devxpy

I love building abstractions!

devxpy / test.dart

Last active February 7, 2019 06:36

A demo of how to create a structure of chapter-wise lessons, from a Set of Lesson objects

	import 'package:meghshala_app_flutter/core/dynamodb.dart';
	import 'package:meghshala_app_flutter/core/lesson_store.dart';

	// fetch lessons from database
	Set<Lesson> lessons = await DynamoDB.listLessons();

	// or, fetch from local storage
	Set<Lesson> lessons = await LessonStore.getLessons();

devxpy / index.html

Created December 12, 2018 10:22

JS Bin // source https://jsbin.com/xidovaf

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	<style id="jsbin-css">
	dot-wave dot {
	display: inline-block;
	width: 12px;

devxpy / roundrobin.py

Last active November 24, 2018 22:08

	def roundrobin(pending):
	remaining = set(pending)

	index = 0
	while remaining:
	for requester in list(remaining):
	try:
	if process_success(requester, pending[requester][index]):
	del pending[requester][index]
	except IndexError:

devxpy / .gitignore

Created October 25, 2018 09:43

Gitignore for python + pycharm dev

	.idea
	zproc/*.c
	zproc/*.so

	# Created by https://www.gitignore.io/api/python,pycharm

	### PyCharm ###
	# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
	# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839

devxpy / toy_robot.py

Created October 16, 2018 11:05

The toy robot problem, using python decorators

	def pos_safe(fn):
	def wrapper(self):
	old = self._pos.copy()
	fn(self)
	for i in range(2):
	if not (0 <= self._pos[i] <= self.bounds[i]):
	self._pos = old
	raise ValueError("Robot shall not pass!")
	self.curpos()

devxpy / fnhash.py

Created August 24, 2018 07:07

devxpy / doctor.txt

Last active July 13, 2018 10:54

	$ flutter doctor --verbose
	[✓] Flutter (Channel beta, v0.5.1, on Linux, locale en_US.utf8)
	• Flutter version 0.5.1 at /home/dev/Apps/flutter
	• Framework revision c7ea3ca377 (6 weeks ago), 2018-05-29 21:07:33 +0200
	• Engine revision 1ed25ca7b7
	• Dart version 2.0.0-dev.58.0.flutter-f981f09760

	[✓] Android toolchain - develop for Android devices (Android SDK 28.0.1)
	• Android SDK at /home/dev/Android/Sdk
	• Android NDK location not configured (optional; useful for native profiling support)

devxpy / main.dart

Last active July 27, 2019 17:24

	import 'package:flutter/material.dart';

	void main() => runApp(MyApp());

	class MyApp extends StatelessWidget {
	@override
	Widget build(BuildContext context) {
	return MaterialApp(
	title: 'MyApp',
	initialRoute: '/',

devxpy / aplay_player.py

Created April 1, 2018 15:59

A music player in python that uses aplay as backend, written using zproc ( https://github.com/devxpy/zproc )

	# pip install delegator.py zproc
	# (python3.6 only!)
	#
	# python aplay_player.py
	# (remember to set path to an audio file of your choice at bottom)

	import atexit
	import os
	import signal
	from pathlib import Path

devxpy / midi_numbers.py

Last active June 17, 2025 17:59

A python script that converts MIDI message numbers to notes and instruments (and vice-versa)