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Why doesn't Java allow to throw a checked exception from static initialization block?
...esn't Java allow to throw a checked exception from a static initialization block? What was the reason behind this design decision?
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A non-blocking read on a subprocess.PIPE in Python
...t to its output stream (standard output). I want to be able to execute non-blocking reads on its standard output. Is there a way to make .readline non-blocking or to check if there is data on the stream before I invoke .readline ? I'd like this to be portable or at least work under Windows and Linu...
How can I control the width of a label tag?
...
Using CSS, of course...
label { display: block; width: 100px; }
The width attribute is deprecated, and CSS should always be used to control these kinds of presentational styles.
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How do I find out what version of WordPress is running?
...
Look in wp-includes/version.php
/**
* The WordPress version string
*
* @global string $wp_version
*/
$wp_version = '2.8.4';
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improve this ...
Refresh image with a new one at the same url
... '<img src="image.jpg?m=' . filemtime('image.jpg') . '">';
(That's PHP server-side code, but the important point here is just that a ?m=[file last-modified time] querystring is appended to the filename).
Pros: 100% reliable, quick & easy to understand and implement, and preserves cachin...
How to comment out a block of Python code in Vim
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@rishabh-manocha: use visual block (Ctrl-V) to select all the added # and type x to delete them.
– theosp
Apr 1 '10 at 16:18
3
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Keyboard shortcut to comment lines in Sublime Text 2
...x/Windows for an English keyboard the shortcut is Ctrl+Shift+/ to toggle a block comment, and Ctrl+/ to toggle a line comment.
If you go into Preferences->Key Bindings - Default, you can find all the shortcuts, below are the lines for commenting.
{ "keys": ["ctrl+/"], "command": "toggle_comment...
Create MSI or setup project with Visual Studio 2012
...template for installing windows services. arstechnica.com/civis/viewtopic.php?f=20&t=1190745
– Kiquenet
Jun 10 '14 at 10:15
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Encrypt & Decrypt using PyCrypto AES 256
...ss AESCipher(object):
def __init__(self, key):
self.bs = AES.block_size
self.key = hashlib.sha256(key.encode()).digest()
def encrypt(self, raw):
raw = self._pad(raw)
iv = Random.new().read(AES.block_size)
cipher = AES.new(self.key, AES.MODE_CBC, iv)...
Hashing a file in Python
...nto memory, since that is a waste of memory. Instead, sequentially read it block by block and update the hash for each block.
Eliminate double buffering, i.e. don't use buffered IO, because we already use an optimal block size.
Use readinto() to avoid buffer churning.
Example:
import hashlib
def...