Note: The code links are to CPython 3.8.5, the most recent release when this was written.
I was recently asked about a performance optimization in CPython around using += and + for string objects.
As some people may already know, if you use += or + a string, it can sometimes be just as fast as ''.join.
The question was to explain when that optimization couldn't be performed.
We will be going through the following example scenarios:
| -- How to use this script: | |
| -- 1. Install the Logitech Gaming Software: http://support.logitech.com/en_us/software/lgs | |
| -- 2. Launch it, and right click on your profile (the gear icon) and then click on "Scripts". | |
| -- 3. Add the following code into the Script window, save it, and close it. Enjoy. | |
| -- Now G1 is bound to F13, G2 to G14, ... G12 to F24. | |
| function OnEvent(event, arg) | |
| -- OutputLogMessage("event = %s, arg = %s\n", event, arg) |
| // ==UserScript== | |
| // @name vmware open console in new tab | |
| // @namespace http://agartner.com | |
| // @version 0.2 | |
| // @description opens vmrc console in new tab rather than window. also forces html5 console if html5 = true. forces external if externalConsle = true | |
| // @match https://vcloud.ialab.us/cloud/org/* | |
| // @copyright 2014-2017, Alex Gartner | |
| // ==/UserScript== | |
| unsafeWindow.openPopoutConsole = function(vmName, vmId, vAppName, vmDevicesAvailable, buttonLabels, miscLabels, confirmationLabels, isVmrc) { |
| #/usr/bin/python3 | |
| """ Demonstration of logging feature for a Flask App. """ | |
| from logging.handlers import RotatingFileHandler | |
| from flask import Flask, request, jsonify | |
| from time import strftime | |
| __author__ = "@ivanleoncz" | |
| import logging |