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Why does sys.exit() not exit when called inside a thread in Python?
...from the thread?
Apart from the method Deestan described you can call os._exit (notice the underscore). Before using it make sure that you understand that it does no cleanups (like calling __del__ or similar).
share
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Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
...
Example problem
While the setting of defaultencoding to UTF-8 isn't the root cause in the following example, it shows how problems are masked and how, when the input encoding changes, the code breaks in an unobvious way:
UnicodeDecodeError: 'utf8' codec can't decode byte 0x80 in position 3131: i...
Python Unicode Encode Error
..., "utf-8", errors="ignore")
else:
# Assume the value object has proper __unicode__() method
value = unicode(value)
If you would like to read more about why:
http://docs.plone.org/manage/troubleshooting/unicode.html#id1
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Share Large, Read-Only Numpy Array Between Multiprocessing Processes
...n
from multiprocessing import Process
import sharedmem
import numpy
def do_work(data, start):
data[start] = 0;
def split_work(num):
n = 20
width = n/num
shared = sharedmem.empty(n)
shared[:] = numpy.random.rand(1, n)[0]
print "values are %s" % shared
processes = [Proc...
PHP equivalent of .NET/Java's toString()
...
@MarkAmery He gave an answer that implicitly calls the __toString() "Magic Method", but didn't mention that at all. The user asked for an answer that was like the Java toString() method, and in PHP, that's the __toString() function.
– Supuhstar
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Javascript equivalent of Python's zip function
...date:
Here's a snazzier Ecmascript 6 version:
zip= rows=>rows[0].map((_,c)=>rows.map(row=>row[c]))
Illustration equiv. to Python{zip(*args)}:
> zip([['row0col0', 'row0col1', 'row0col2'],
['row1col0', 'row1col1', 'row1col2']]);
[["row0col0","row1col0"],
["row0col1","row1col1"...
Markdown and including multiple files
...e, if you were creating a book, then you could have chapters like this:
01_preface.md
02_introduction.md
03_why_markdown_is_useful.md
04_limitations_of_markdown.md
05_conclusions.md
You can merge them by doing executing this command within the same directory:
pandoc *.md > markdown_book.html
...
Add a new column to existing table in a migration
...lashing with existing models
for Laravel 3:
php artisan migrate:make add_paid_to_users
for Laravel 5+:
php artisan make:migration add_paid_to_users_table --table=users
You then need to use the Schema::table() method (as you're accessing an existing table, not creating a new one). And you ca...
Socket.IO - how do I get a list of connected sockets/clients?
...lients('room');
anymore. Instead you can use the following
var clients_in_the_room = io.sockets.adapter.rooms[roomId];
for (var clientId in clients_in_the_room ) {
console.log('client: %s', clientId); //Seeing is believing
var client_socket = io.sockets.connected[clientId];//Do whatever y...
How to use phpexcel to read data and insert into database?
...d an Excel file and transfer the data into a database
// Include PHPExcel_IOFactory
include 'PHPExcel/IOFactory.php';
$inputFileName = './sampleData/example1.xls';
// Read your Excel workbook
try {
$inputFileType = PHPExcel_IOFactory::identify($inputFileName);
$objReader = PHPExcel_IOFa...