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AttributeError: 'module' object has no attribute 'urlopen'
...
A Python 2+3 compatible solution is:
import sys
if sys.version_info[0] == 3:
from urllib.request import urlopen
else:
# Not Python 3 - today, it is most likely to be Python 2
# But note that this might need an update when Python 4
# might be around one day
from urlli...
File Upload without Form
...
Basing on this tutorial, here a very basic way to do that:
$('your_trigger_element_selector').on('click', function(){
var data = new FormData();
data.append('input_file_name', $('your_file_input_selector').prop('files')[0]);
// append other variables to data if you want: dat...
How to pass command line arguments to a rake task
... symbol arguments to the task call. For example:
require 'rake'
task :my_task, [:arg1, :arg2] do |t, args|
puts "Args were: #{args} of class #{args.class}"
puts "arg1 was: '#{args[:arg1]}' of class #{args[:arg1].class}"
puts "arg2 was: '#{args[:arg2]}' of class #{args[:arg2].class}"
end
ta...
Objective-C formatting string for boolean?
...nction (if only to avoid the propagation of string literals throughout the app).
– Warren P
Apr 9 '10 at 13:48
Only y...
How to extract the n-th elements from a list of tuples?
...htly slower than the list comprehension:
setup = 'elements = [(1,1,1) for _ in range(100000)];from operator import itemgetter'
method1 = '[x[1] for x in elements]'
method2 = 'map(itemgetter(1), elements)'
import timeit
t = timeit.Timer(method1, setup)
print('Method 1: ' + str(t.timeit(100)))
t = t...
How do I determine the target architecture of static library (.a) on Mac OS X?
...lib/libiodbc.a
Architectures in the fat file: /usr/lib/libiodbc.a are: x86_64 i386 ppc
% lipo -info libnonfatarchive.a
input file libnonfatarchive.a is not a fat file
Non-fat file: libnonfatarchive.a is architecture: i386
%
...
What is __pycache__?
... it to bytecode first (this is an oversimplification) and stores it in the __pycache__ folder. If you look in there you will find a bunch of files sharing the names of the .py files in your project's folder, only their extensions will be either .pyc or .pyo. These are bytecode-compiled and optimized...
How can I ssh directly to a particular directory?
..., even if ssh has no local tty.
If you don't use -t then no prompt will appear.
If you don't add ; bash then the connection will get closed and return control to your local machine
share
|
impr...
What is JNDI? What is its basic use? When is it used?
... Directory Interface.
What is its basic use?
JNDI allows distributed applications to look up services in an abstract, resource-independent way.
When it is used?
The most common use case is to set up a database connection pool on a Java EE application server. Any application that's deplo...
Tips for debugging .htaccess rewrite rules
...lse on your site.
e.g
#protect with a fake user agent
RewriteCond %{HTTP_USER_AGENT} ^my-fake-user-agent$
#Here is the actual rule I am testing
RewriteCond %{HTTP_HOST} !^www\.domain\.com$ [NC]
RewriteRule ^ http://www.domain.com%{REQUEST_URI} [L,R=302]
If you are using Firefox, you can use ...