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When to use pip requirements file versus install_requires in setup.py?
...cies that you recommend. For example you might use SQLAlchemy but suggest MySQL, and so put MySQLdb in the requirements file).
So, in summary: install_requires is to keep people away from things that you know don't work, while requirements files to lead people towards things you know do work. One...
How do I replace text in a selection?
...e you have open.
There is an icon option which when hovered over says "In Selection" that you can select to find and replace within a selection. I've pointed to the correct icon in the screenshot below.
Hit replace all, and voila, all instances of '0' will be replaced with '255'.
Note: this ...
How the single threaded non blocking IO model works in Node.js
...s that you would use will have callbacks.
Edit
The SQL query is taken from mysql library. It implements callback style as well as event emitter to queue SQL requests. It does not execute them asynchronously, that is done by the internal libuv threads that provide the abstraction of non-blocking I/O....
jquery input select all on focus
I'm using this code to try and select all of the text in the field when a user focuses on the field. What happens is, it selects all for a second, then its unselected and the typing cursor is left where I clicked...
...
How to create user for a db in postgresql? [closed]
I have installed PostgreSQL 8.4 on my CentOS server and connected to root user from shell and accessing the PostgreSQL shell.
...
Return XML from a controller's action in as an ActionResult?
... @pcampbel, I prefer creating separate folders in my project root for every kind of classes: Results, Filters, Routing, etc.
– Anthony Serdyukov
Apr 6 '10 at 2:32
...
Set select option 'selected', by value
I have a select field with some options in it. Now I need to select one of those options with jQuery. But how can I do that when I only know the value of the option that must be selected?
...
Performance of FOR vs FOREACH in PHP
...ur time for a micro-optimization. Remember, Premature Optimization Is The Root Of All Evil...
Edit: Based upon the comment, I decided to do a quick benchmark run...
$a = array();
for ($i = 0; $i < 10000; $i++) {
$a[] = $i;
}
$start = microtime(true);
foreach ($a as $k => $v) {
$a[$...
Command prompt won't change directory to another drive
...s
If you're somewhere random on your D:\ drive, and you want to go to the root of your drive, you can use this command :
cd d:\
If you're somewhere random on your D:\ drive, and you want to go to a specific folder on your drive, you can use this command :
cd d:\Docs\Java
If you're on a differ...
How do you get the Git repository's name in some Git repository?
...
Well, if, for the repository name you mean the Git root directory name (the one that contains the .git directory) you can run this:
basename `git rev-parse --show-toplevel`
The git rev-parse --show-toplevel part gives you the path to that directory and basename strips the ...