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@Kartones
Kartones / postgres-cheatsheet.md
Last active April 25, 2024 16:50
PostgreSQL command line cheatsheet

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

  • -E: will describe the underlaying queries of the \ commands (cool for learning!)
  • -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)
@senko
senko / maybe.py
Last active January 28, 2022 09:16
A Pythonic implementation of the Maybe monad
# maybe.py - a Pythonic implementation of the Maybe monad
# Copyright (C) 2014. Senko Rasic <senko.rasic@goodcode.io>
#
# 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:
#
@dankrause
dankrause / ipc.py
Last active February 16, 2024 16:23
Simple socket IPC in python
# Copyright 2017 Dan Krause
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
@mkropat
mkropat / knownpaths.py
Last active April 19, 2024 00:07
Python wrapper around the SHGetKnownFolderPath Windows Shell function
import ctypes, sys
from ctypes import windll, wintypes
from uuid import UUID
class GUID(ctypes.Structure): # [1]
_fields_ = [
("Data1", wintypes.DWORD),
("Data2", wintypes.WORD),
("Data3", wintypes.WORD),
("Data4", wintypes.BYTE * 8)
@theburningmonk
theburningmonk / singleton.dart
Last active September 2, 2022 01:40
Using Dart's factory constructor feature to implement the singleton pattern
class MyClass {
static final MyClass _singleton = new MyClass._internal();
factory MyClass() {
return _singleton;
}
MyClass._internal() {
... // initialization logic here
}
@romannurik
romannurik / SwipeDismissListViewTouchListener.java
Last active May 1, 2021 10:16
**BETA** Android 4.0-style "Swipe to Dismiss" sample code
Moved to
https://github.com/romannurik/android-swipetodismiss