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Use of “global” keyword in Python
What I understand from reading the documentation is that Python has a separate namespace for functions, and if I want to use a global variable in that function, I need to use global .
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Jenkins on OS X: xcodebuild gives Code Sign error
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It's entirely different from the original question ... To start with, you should login as jenkins (e.g. via sudo -u jenkins bash) and check that you have the permissions on the whole path right. You did a lot of things you didn't say (like using dsc...
How to use the same C++ code for Android and iOS?
...eturns it. The idea is, iOS will send "Obj-C" and Android will send "Java" from their respective languages, and the CPP code will create a text as a follow "cpp says hello to << text received >>".
Shared CPP code
First of all, we are going to create the shared CPP code, doing it we hav...
Are list-comprehensions and functional functions faster than “for loops”?
...within a set of points, functional programming (using the starmap function from the built-in itertools module) turned out to be slightly slower than for-loops (taking 1.25 times as long, in fact). Here is the sample code I used:
import itertools, time, math, random
class Point:
def __init__(se...
How do I handle the window close event in Tkinter?
...Toplevel widget):
Here you have a concrete example:
import tkinter as tk
from tkinter import messagebox
root = tk.Tk()
def on_closing():
if messagebox.askokcancel("Quit", "Do you want to quit?"):
root.destroy()
root.protocol("WM_DELETE_WINDOW", on_closing)
root.mainloop()
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Are static variables shared between threads?
...frame), unless you establish a happens-before relationship.
Here's a quote from that link (supplied in the comment by Jed Wesley-Smith):
Chapter 17 of the Java Language Specification defines the happens-before relation on memory operations such as reads and writes of shared variables. The results o...
How can I force clients to refresh JavaScript files?
...hem to do a ctrl F5 refresh to ensure that they get the up-to-date files from the server, but it would be preferable to handle this before that time.
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How to Display blob (.pdf) in an AngularJS app
I have been trying to display pdf file which I am getting as a blob from a $http.post response. The pdf must be displayed within the app using <embed src> for example.
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Repeat a task with a time delay?
...gram, works absolutely fine. But the startRepeatingTask() had to be called from the onCreate method /UI thread (it took me some time to realise this!), perhaps this point could have been mentioned somewhere. Regards
– gkris
Aug 21 '12 at 21:28
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Add a CSS border on hover without moving the element [duplicate]
... Indeed the best solution when the border thickness changes from one state to another.
– laurent
Nov 21 '14 at 11:03
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