No error , No gain

Given the following code, what does the if __name__ == "__main__": do? # Threading example import time, thread def myfunction(string, sleeptime, lock, *args): while True: lock.acquire() time.sleep(sleeptime) lock.release() time.sleep(sleeptime) if __name__ == "__main__": lock = thread.allocate_lock() thread.start_new_thread(myfunction, ("Thread #: 1", 2, lock)) thread.start_new_thread(myfunction..

What is the difference between Android units of measure? px dip dp sp From the Android Developer Documentation: px > Pixels - corresponds to actual pixels on the screen. in > Inches - based on the physical size of the screen. > 1 Inch = 2.54 centimeters mm > Millimeters - based on the physical size of the screen. pt > Points - 1/72 of an inch based on the physical size of the screen. dp or dip >..

For anchors that act like buttons (for example Questions, Tags, Users, etc. which are located on the top of the Stack Overflow page) or tabs, is there a CSS standard way to disable the highlighting effect if the user accidentally selects the text? I realize that this could be done with JavaScript and a little googling yielded the Mozilla-only -moz-user-select option. Is there a standard-complian..

Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago. Improve this question Form-based authentication for websites We believe that Stack Overflow should not just be a resource for very specific technical questions, but also for general gu..

Here is a piece of C++ code that shows some very peculiar behavior. For some strange reason, sorting the data (before the timed region) miraculously makes the loop almost six times faster. #include #include #include int main() { // Generate data const unsigned arraySize = 32768; int data[arraySize]; for (unsigned c = 0; c < arraySize; ++c) data[c] = std::rand() % 256; // !!! With this, the next ..

How do I get the path of the directory in which a Bash script is located, inside that script? I want to use a Bash script as a launcher for another application. I want to change the working directory to the one where the Bash script is located, so I can operate on the files in that directory, like so: $ ./application #!/usr/bin/env bash SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /de..

In Python, what are metaclasses and what do we use them for?Classes as objectsBefore understanding metaclasses, you need to master classes in Python. And Python has a very peculiar idea of what classes are, borrowed from the Smalltalk language.In most languages, classes are just pieces of code that describe how to produce an object. That's kinda true in Python too:>>> class ObjectCreator(object)..

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent. The previous developer used two ways of declaring functions and I can't work out if there is a reason behind it or not. The two ways are: var functionOne = function() { // Some code }; function functionTwo() { // Some code } What are ..

How do I force an overwrite of local files on a git pull? The scenario is the following: A team member is modifying the templates for a website we are working on They are adding some images to the images directory (but forgets to add them under source control) They are sending the images by mail, later, to me I'm adding the images under the source control and pushing them to GitHub together with..

I have an array of numbers and I'm using the .push() method to add elements to it. Is there a simple way to remove a specific element from an array? I'm looking for the equivalent of something like: array.remove(number); I have to use core JavaScript. Frameworks are not allowed. Find the index of the array element you want to remove using indexOf, and then remove that index with splice. The spli..