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Setting the correct encoding when piping stdout in Python
...t of a Python program, the Python interpreter gets confused about encoding and sets it to None. This means a program like this:
...
Permutations in JavaScript?
...s into an array prior to do any permutation, so you simply remove the join and split operation
var permArr = [],
usedChars = [];
function permute(input) {
var i, ch;
for (i = 0; i < input.length; i++) {
ch = input.splice(i, 1)[0];
usedChars.push(ch);
if (input.leng...
What is the purpose of flush() in Java streams?
In Java, flush() method is used in streams. But I don't understand what are all the purpose of using this method?
6 Answe...
Why does Java's Arrays.sort method use two different sorting algorithms for different types?
Java 6's Arrays.sort method uses Quicksort for arrays of primitives and merge sort for arrays of objects. I believe that most of time Quicksort is faster than merge sort and costs less memory. My experiments support that, although both algorithms are O(n log(n)). So why are different algorithms us...
How to delete an SMS from the inbox in Android programmatically?
On Android phones SMS messages registered to applications also get sent to the device's inbox. However to prevent clutter, it'd be nice to be able to remove application specific SMS messages from the inbox to reduce the potential overflow of those messages.
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html5 localStorage error with Safari: “QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to
...
Any particular reason you (and @KingKongFrog) are using window.sessionStorage to detect if you can write to localStorage or are we in a weird copy-paste typo cycle?
– Yetti
Apr 24 '14 at 21:09
...
What must I know to use GNU Screen properly? [closed]
I've just introduced a friend to GNU Screen and they're having a hard time getting used to it. That makes me think about the essential things he needs to know about the excellent Screen utility, the same things that you'd think worthwhile to teach someone, a beginner, from the ground up. What ar...
Retrieving the output of subprocess.call() [duplicate]
...Popen() instead. Then you can pass subprocess.PIPE for the stderr, stdout, and/or stdin parameters and read from the pipes by using the communicate() method:
from subprocess import Popen, PIPE
p = Popen(['program', 'arg1'], stdin=PIPE, stdout=PIPE, stderr=PIPE)
output, err = p.communicate(b"input ...
A cron job for rails: best practices?
...Listener.process_new_messages
puts "done."
end
To execute from the command line, this is just "rake cron". This command can then be put on the operating system cron/task scheduler as desired.
Update this is quite an old question and answer! Some new info:
the heroku cron service I referenced ...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
...://superuser.com/questions/361435/i-have-compiled-imagemagick-on-my-centos-and-rmagick-wont-install
I exported the imagemagick path by adding
$ export PKG_CONFIG_PATH="/opt/local/lib/pkgconfig:$PKG_CONFIG_PATH"
to my ~/.bash_profile, sourcing the new profile, then running:
gem install rmagick
...