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Deleting all files in a directory with Python
I want to delete all files with the extension .bak in a directory. How can I do that in Python?
7 Answers
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How to configure postgresql for the first time?
I have just installed postgresql and I specified password x during installation.
When I try to do createdb and specify any password I get the message:
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How does PHP 'foreach' actually work?
...r the simplest case is Traversable objects, as for these foreach is essentially only syntax sugar for code along these lines:
foreach ($it as $k => $v) { /* ... */ }
/* translates to: */
if ($it instanceof IteratorAggregate) {
$it = $it->getIterator();
}
for ($it->rewind(); $it->v...
Laravel Check If Related Model Exists
...hp 7.2+ you can't use count on the relation object, so there's no one-fits-all method for all relations. Use query method instead as @tremby provided below:
$model->relation()->exists()
generic solution working on all the relation types (pre php 7.2):
if (count($model->relation))
{
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Enable remote MySQL connection: ERROR 1045 (28000): Access denied for user
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You have to put this as root:
GRANT ALL PRIVILEGES ON *.* TO 'USERNAME'@'IP' IDENTIFIED BY 'PASSWORD' with grant option;
;
where IP is the IP you want to allow access, USERNAME is the user you use to connect, and PASSWORD is the relevant password.
If you wa...
Is there a SASS.js? Something like LESS.js?
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There is no officially sanctioned JavaScript implementation of sass or scss. There are a couple of implementations in progress that I've seen, but none that I can recommend using at this time.
However, please a few points:
Why should you ma...
How can I list all tags in my Git repository by the date they were created?
I need some way to list all tags in my system by the date they were created but am not sure if I can get that data via git-log. Ideas?
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count (non-blank) lines-of-code in bash
... Just habit. I read pipelines from left to right, which means I usually start with cat, then action, action, action, etc. Clearly, the end result is the same.
– Michael Cramer
Sep 24 '08 at 14:06
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How does this CSS produce a circle?
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Let's reformulate that into two questions:
Where do width and height actually apply?
Let's have a look at the areas of a typical box (source):
The height and width apply only on content, if the correct box model is being used (no quirks mode, no old Internet Explorer).
Where does border-radi...
Getting all selected checkboxes in an array
... want to use jQuery
var array = []
var checkboxes = document.querySelectorAll('input[type=checkbox]:checked')
for (var i = 0; i < checkboxes.length; i++) {
array.push(checkboxes[i].value)
}
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