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What does if __name__ == “__main__”: do?
... file, it does two things:
it sets a few special variables like __name__, and then
it executes all of the code found in the file.
Let's see how this works and how it relates to your question about the __name__ checks we always see in Python scripts.
Code Sample
Let's use a slightly different cod...
Regex using javascript to return just numbers
...remember that you're getting a string back; if you actually need a number, cast the result:
item=item.replace('^.*\D(\d*)$', '$1');
if (!/^\d+$/.test(item)) throw 'parse error: number not found';
item=Number(item);
If you're dealing with numeric item ids on a web page, your code could also useful...
Process escape sequences in a string in Python
...
hands down, the best solution! btw, by docs it should be "string_escape" (with underscore) but for some reason accepts anything in the pattern 'string escape', 'string@escape" and whatnot... basically 'string\W+escape'
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Get Slightly Lighter and Darker Color from UIColor
...the brightness property itself. All in all:
@implementation UIColor (LightAndDark)
- (UIColor *)lighterColor
{
CGFloat h, s, b, a;
if ([self getHue:&h saturation:&s brightness:&b alpha:&a])
return [UIColor colorWithHue:h
saturation:s
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How to find serial number of Android device?
I need to use a unique ID for an Android app and I thought the serial number for the device would be a good candidate. How do I retrieve the serial number of an Android device in my app ?
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How to install GCC piece by piece with GMP, MPFR, MPC, ELF, without shared libraries?
...s of dependencies, not using a package manager (like yum, rpm, apt, dpkg), and not using shared libraries?
6 Answers
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Is main() really start of a C++ program?
The section $3.6.1/1 from the C++ Standard reads,
11 Answers
11
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How do I convert a Django QuerySet into list of dicts?
...
Type Cast to List
job_reports = JobReport.objects.filter(job_id=job_id, status=1).values('id', 'name')
json.dumps(list(job_reports))
share
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Embedding Base64 Images
...:
Gecko-based, such as Firefox, SeaMonkey, XeroBank, Camino, Fennec and K-Meleon
Konqueror, via KDE's KIO slaves input/output system
Opera (including devices such as the Nintendo DSi or Wii)
WebKit-based, such as Safari (including on iOS), Android's browser, Epiphany and Midori (WebKit ...
How do I remove duplicates from a C# array?
...g[] array in C# that gets returned from a function call. I could possibly cast to a Generic collection, but I was wondering if there was a better way to do it, possibly by using a temp array.
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