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Using a dictionary to count the items in a list [duplicate]
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280
in 2.7 and 3.1 there is special Counter dict for this purpose.
>>> from collections im...
Capture keyboardinterrupt in Python without try-except
...gnal_handler(signal, frame):
print('You pressed Ctrl+C!')
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
print('Press Ctrl+C')
forever = threading.Event()
forever.wait()
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String formatting: % vs. .format vs. string literal
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Which characters need to be escaped when using Bash?
...readable version of 2
There's an easy safe set of characters, like [a-zA-Z0-9,._+:@%/-], which can be left unescaped to keep it more readable
I\'m\ a\ s@fe\ \$tring\ which\ ends\ in\ newline"
"
sed command: LC_ALL=C sed -e 's/[^a-zA-Z0-9,._+@%/-]/\\&/g; 1{$s/^$/""/}; 1!s/^/"/; $!s/$/"/'.
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Practical uses for AtomicInteger
... int remainder = s % n;
return remainder > 0 ? remainder : remainder + n;
}
}
}
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}
As you can see, it basically works almost the same way as incrementAndGet(), but performs arbitrary calculation (calculateNext()) instead of increment (...
How to link to apps on the app store
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Edited on 2016-02-02
Starting from iOS 6 SKStoreProductViewController class was introduced. You can link an app without leaving your app. Code snippet in Swift 3.x/2.x and Objective-C is here.
A SKStoreProductViewController object ...
Input with display:block is not a block, why not?
...ely unknown box-sizing:border-box style from CSS 3. This allows a 'true' 100% width on any element regardless of that elements' padding and/or borders.
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta ht...
Access Denied for User 'root'@'localhost' (using password: YES) - No Privileges?
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20 Answers
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How do I use InputFilter to limit characters in an EditText in Android?
I want to restrict the chars to 0-9, a-z, A-Z and spacebar only. Setting inputtype I can limit to digits but I cannot figure out the ways of Inputfilter looking through the docs.
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How do I prompt for Yes/No/Cancel input in a Linux shell script?
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edited Apr 8 at 5:07
answered Oct 22 '08 at 17:08
M...