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Best way to structure a tkinter application? [closed]
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I advocate an object oriented approach. This is the template that I start out with:
# Use Tkinter for python 2, tkinter for python 3
import tkinter as tk
class MainApplication(tk.Frame):
def __init__(self, parent, *args, **kwargs):
tk.Frame.__init__(self, parent, *args, **kwargs...
Get the previous month's first and last day dates in c#
...re stored using a a full datetime this query may fail to retrieve any that start after 12:00 AM on the last day of the month. You could solve this by changing the last line to read var last = month.AddTicks(-1);
– SixOThree
Dec 22 '14 at 22:12
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Looking to understand the iOS UIViewController lifecycle
...the screen.
ViewDidAppear - Called after the view appears - great place to start an animations or the loading of external data from an API.
ViewWillDisappear/DidDisappear - Same idea as ViewWillAppear/ViewDidAppear.
ViewDidUnload/ViewDidDispose - In Objective-C, this is where you do your clean-up an...
How to printf “unsigned long” in C?
...is a valid conversion specification, %ul is not. %lu, broken out is: % — starts a "conversion specification"; l — the length modifier, l means "[unsigned] long int"; u — the conversion specifier, u is for an unsigned int to be printed out as decimal. Because we gave the length modifier l, it t...
Developing C# on Linux
...tu Software Center, it will contain pretty much everything you need to get started right away (Compiler, Runtime Environment, IDE). If you would like more information, see the following links:
http://monodevelop.com/
http://en.wikipedia.org/wiki/MonoDevelop
http://en.wikipedia.org/wiki/Mono_%28sof...
'printf' vs. 'cout' in C++
...<ctime>
class TimedSection {
char const *d_name;
timespec d_start;
public:
TimedSection(char const *name) :
d_name(name)
{
clock_gettime(CLOCK_REALTIME, &d_start);
}
~TimedSection() {
timespec end;
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NSAttributedString add text alignment
...o my keayboard trying to fix bugs for the last 4 weeks. But it was a great start, without it I wouldn't know where to start with my rich text Editor, Thanks for your answer it worked for me.
– aryaxt
Jul 24 '11 at 1:27
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What are Runtime.getRuntime().totalMemory() and freeMemory()?
...mory(). The answer is that the JVM allocates memory lazily. Lets say you start your Java process as such:
java -Xms64m -Xmx1024m Foo
Your process starts with 64mb of memory, and if and when it needs more (up to 1024m), it will allocate memory. totalMemory() corresponds to the amount of memory ...
How to convert nanoseconds to seconds using the TimeUnit enum?
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Well, you could just divide by 1,000,000,000:
long elapsedTime = end - start;
double seconds = (double)elapsedTime / 1_000_000_000.0;
If you use TimeUnit to convert, you'll get your result as a long, so you'll lose decimal precision but maintain whole number precision.
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How do I get an empty array of any size in python?
...the incorrect, however. I prefer it to a = range(N) because every element starts out at a sensible "default". I guess it's a matter of opinion.
– dappawit
Mar 5 '11 at 21:03
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