Weize Nanguage

A little experiment using restarts.

(And while we’re at it, let’s torture R’s syntax a little.)

![screenshot][]

In the following we will be using R’s “restarts” feature to implement the state machine that drives generators in languages such as Python. Generators allow lazily generating values on demand: a consumer invokes a generator, and consumes values as they are produced. A new value is only produced once the previous one has been consumed.

R Ecosystem

R Markdown

Use a productive notebook interface to weave together narrative text and code to produce elegantly formatted output. Use multiple languages including R, Python, and SQL.

Python Ecosystem

Pweave

Pweave is a scientific report generator and a literate programming tool for Python. It can capture the results and plots from data analysis and works well with numpy, scipy and matplotlib.
podoc

The code for this tutorial is here

Opencv provides are useful, but limited, method of building a GUI. A much more complete system could be acheived using pyqt. The question is, how do we display images. There are quite a few possible routes but perhaps the easiest is to use QLabel since it has a setPixmap function. Below is some code that creates two labels. It then creates a grey pixmap and displays it one of the labels. code: staticLabel1.py

from PyQt5.QtWidgets import QWidget, QApplication, QLabel, QVBoxLayout
from PyQt5.QtGui import QPixmap, QColor
import sys

To convert animation GIF to MP4 by ffmpeg, use the following command

ffmpeg -i animated.gif -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" video.mp4

Description

movflags – This option optimizes the structure of the MP4 file so the browser can load it as quickly as possible.

pix_fmt – MP4 videos store pixels in different formats. We include this option to specify a specific format which has maximum compatibility across all browsers.

	"""Run Length Encoding utilities for NumPy arrays.

	Authors
	-------
	- Nezar Abdennur
	- Anton Goloborodko

	"""
	from __future__ import division, print_function
	import numpy as np

	Code from PyCon India 2019 Keynote Talk
	David Beazley (https://www.dabeaz.com)
	======================================

	This code is presented "as is" and represents what was live-coded
	during my closing keynote presentation at PyCon India, Chennai,
	October 13, 2009. I have made no changes to the files.

	Requires: Python 3.6+, numpy, pygame

	<docs>
	[TODO: write documentation for this plugin.]
	</docs>

	<config lang="json">
	{
	"name": "VizarrReferenceStore",
	"type": "web-worker",
	"tags": [],
	"ui": "",

	<docs lang="markdown">
	[TODO: write documentation for this plugin.]
	</docs>

	<config lang="json">
	{
	"name": "PythonPlugin",
	"type": "web-python",
	"version": "0.1.0",
	"description": "[TODO: describe this plugin with one sentence.]",