Paolo Melchiorre pauloxnet

import pandas as pd
import numpy as np

Convert MP4 file to animated WEBP file in ffmpeg CLI

1. Install ffmpeg CLI through homebrew

In terminal.app, install ffmpeg through homebrew

brew install ffmpeg

Validate the installation:

Negative Python user experience on Debian/Ubuntu

The user experience of Python on a minimal Debian or Ubuntu installation is bad. Core features like virtual environments, pip bootstrapping, and the ssl module are either missing or do not work like designed and documented. Some Python core developers including me are worried and consider Debian/Ubuntu's packaging harmful for Python's reputation and branding. Users don't get what they expect.

Reproducer

The problems can be easily reproduced with official Debian and Ubuntu containers in Docker or Podman. Debian Stable (Debian 10 Buster) comes with Python 3.7.3. Ubuntu Focal (20.04 LTS) has Python 3.8.5.

	# On Linux we can use native GNU time, on OSX we have to install gnu-time
	# manually, since native time doesn't measure memory.

	# http://man7.org/linux/man-pages/man1/time.1.html
	# http://braumeister.org/formula/gnu-time
	$ brew install gnu-time

	# can be called via gtime, since time is a bash command

	# %M - Maximum resident set size of the process during its lifetime, in Kbytes.

	from django.db.models.expressions import CombinedExpression, F, Value
	from django.contrib.postgres.fields import JSONField


	expression = CombinedExpression(
	F('my_json_field'),
	'\|\|',
	Value({'fizz': 'buzz'}, JSONField())
	)

	from django.db import models
	from django.db.models import Avg


	class Blog(models.Model):
	name = models.CharField(max_length=100)
	rating = models.DecimalField(max_digits=5, decimal_places=2, null=True)

	def __str__(self):
	return self.name

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<title>Leaflet - Emoji marker</title>
	<meta charset="utf-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<link href="https://unpkg.com/leaflet@1.6.0/dist/leaflet.css" rel="stylesheet" integrity="sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ==" crossorigin=""/>
	<script src="https://unpkg.com/leaflet@1.6.0/dist/leaflet.js" integrity="sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew==" crossorigin=""></script>
	<style>
	.mymarker { font-size: 50px; }

	#------------------------------------------------------------------------------
	# Top 20K hashes from the Troy Hunt / haveibeenpwned Pwned Passwords list v6 (2020-06-19)
	# with frequency count and cracked plaintext passwords
	#
	# The latest version of this file can be found here:
	# https://gist.github.com/roycewilliams/226886fd01572964e1431ac8afc999ce
	# The equivalent of this file, but based on v2 of the Pwned Passwords, is here:
	# https://gist.github.com/roycewilliams/281ce539915a947a23db17137d91aeb7
	#------------------------------------------------------------------------------

	from moneyed import Money
	from psycopg2.extras import register_composite
	from psycopg2.extensions import register_adapter, adapt, AsIs

	MoneyValue = register_composite(
	'money_value',
	connection.cursor().cursor,
	globally=True
	).type

Paolo Melchiorre pauloxnet

Convert MP4 file to animated WEBP file in ffmpeg CLI

1. Install ffmpeg CLI through homebrew

Negative Python user experience on Debian/Ubuntu

Reproducer

Run Debian container