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@Valian
Valian / profile_middleware.py
Created May 6, 2017 14:13
Detailed Hotshot profiler middleware for Django
# Orignal version taken from http://www.djangosnippets.org/snippets/186/
# Original author: udfalkso
# Modified by: Shwagroo Team and Gun.io
# Further modified by: Jakub Skalecki (https://rock-it.pl)
import hotshot
import hotshot.stats
import textwrap
import os
@kyledcline
kyledcline / postgres-best-practices.md
Last active August 8, 2024 13:30
Postgres Best Practices

PSQL CLI Client

Psql is a fully-fledged CLI client for Postgres, but most people are unaware of its many advanced features.

~/.psqlrc can be edited to persist any behavior or configuration settings you want between psql sessions. It behaves just like ~/.bashrc or ~/.vimrc, sourced at psql launch. See More out of psql for some interesting configurations.

If you have a long query to write and rewrite, you can use \e to edit your query in an editor.

Use \watch at the end of a query in order to automatically re-run the query every few seconds - great for monitoring while making changes elsewhere in your application architecture.

class DatabaseWrapper(BaseDatabaseWrapper):
SEARCH_PAGE_SIZE=999
def __init__(self, *args, **kwargs):
super(DatabaseWrapper, self).__init__(*args, **kwargs)
self.charset = "utf-8"
self.creation = DatabaseCreation(self)
self.features = DatabaseFeatures(self)
if django.VERSION > (1, 4):
self.ops = DatabaseOperations(self)
@carlthome
carlthome / HPS.ipynb
Last active July 4, 2024 13:13
Monophonic pitch detection with the Harmonic Product Spectrum (HPS) algorithm.
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@nrollr
nrollr / nginx.conf
Last active April 19, 2025 18:42
NGINX config for SSL with Let's Encrypt certs
# UPDATED 17 February 2019
# Redirect all HTTP traffic to HTTPS
server {
listen 80;
listen [::]:80;
server_name www.domain.com domain.com;
return 301 https://$host$request_uri;
}
# SSL configuration
@MrTrustor
MrTrustor / clean-docker-for-mac.sh
Last active November 21, 2023 11:38
This script cleans the Docker.qcow2 file that takes a lot of disk space with Docker For Mac. You can specify some Docker images that you would like to keep.
#!/bin/bash
# Copyright 2017 Théo Chamley
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in the Software
# without restriction, including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
# to whom the Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all copies or
@avinassh
avinassh / jerbs.md
Last active January 8, 2024 10:11
list of sites to search for developer jobs
@Faheetah
Faheetah / Jenkinsfile.groovy
Last active April 25, 2025 15:35
Jenkinsfile idiosynchrasies with escaping and quotes
node {
echo 'Results included as an inline comment exactly how they are returned as of Jenkins 2.121, with $BUILD_NUMBER = 1'
echo 'No quotes, pipeline command in single quotes'
sh 'echo $BUILD_NUMBER' // 1
echo 'Double quotes are silently dropped'
sh 'echo "$BUILD_NUMBER"' // 1
echo 'Even escaped with a single backslash they are dropped'
sh 'echo \"$BUILD_NUMBER\"' // 1
echo 'Using two backslashes, the quotes are preserved'
sh 'echo \\"$BUILD_NUMBER\\"' // "1"
@spaze
spaze / opera-vpn.md
Last active December 22, 2024 15:50
Opera VPN behind the curtains is just a proxy, here's how it works

2023 update

ℹ️ Please note this research is from 2016 when Opera has first added their browser "VPN", even before the "Chinese deal" was closed. They have since introduced some real VPN apps but this below is not about them.

🕵️ Some folks also like to use this article to show a proof that the Opera browser is a spyware or that Opera sells all your data to 3rd parties or something like that. This article here doesn't say anything like that.


When setting up (that's immediately when user enables it in settings) Opera VPN sends few API requests to https://api.surfeasy.com to obtain credentials and proxy IPs, see below, also see The Oprah Proxy.

The browser then talks to a proxy de0.opera-proxy.net (when VPN location is set to Germany), it's IP address can only be resolved from within Opera when VPN is on, it's 185.108.219.42 (or similar, see below). It's an HTTP/S proxy which requires auth.

@omegahm
omegahm / quasicrystal.py
Last active April 28, 2021 01:44
Quasicrystals in Python
# -*- coding: utf-8 -*-
import bohrium as np
from math import pi
import matplotlib.pyplot as plt
import matplotlib.colors as colors
fig = plt.figure()
plt.xticks([])
plt.yticks([])