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`staticmethod` and `abc.abstractmethod`: Will it blend?
...ke a method that is both a staticmethod and an abc.abstractmethod . How do I do this?
4 Answers
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Test if remote TCP port is open from a shell script
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As pointed by B. Rhodes, nc (netcat) will do the job. A more compact way to use it:
nc -z <host> <port>
That way nc will only check if the port is open, exiting with 0 on success, 1 on failure.
For a quick interactive check (with a 5 seconds timeout):
nc...
Cross-browser testing: All major browsers on ONE machine
...s of thumb: Which browsers should be included?
Preparation
Windows XP
Windows 7+ (for IE9+)
Browser downloads
Internet Explorer
Firefox
Opera
Chrome
Safari
Adobe Flash Player
Download summary
Sandboxie
Part 2: Installation and configuration
Internet E...
How to find the sum of an array of numbers
...he only reason I have included this is as an answer Ortund's question as I do not think it was clarified.
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Converting Dictionary to List? [duplicate]
...n dict.iteritems():
temp = [key,value]
dictlist.append(temp)
You don't need to copy the loop variables key and value into another variable before using them so I dropped them out. Similarly, you don't need to use append to build up a list, you can just specify it between square brackets a...
Change multiple files
...
Better yet:
for i in xa*; do
sed -i 's/asd/dfg/g' $i
done
because nobody knows how many files are there, and it's easy to break command line limits.
Here's what happens when there are too many files:
# grep -c aaa *
-bash: /bin/grep: Argument ...
How to disable back swipe gesture in UINavigationController on iOS 7
...self.navigationController.interactivePopGestureRecognizer.enabled property does not work in following view's methods: viewDidLoad, viewWillAppear, viewDidAppear, viewDidDisappear, but works in method viewWillDisappear. On iOS7 it works in all of above mentioned methods. So try to use it in any other...
Nested classes' scope?
....outer_var
Note that nesting classes is somewhat uncommon in Python, and doesn't automatically imply any sort of special relationship between the classes. You're better off not nesting. (You can still set a class attribute on Outer to Inner, if you want.)
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LINQ To Entities does not recognize the method Last. Really?
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That limitation comes down to the fact that eventually it has to translate that query to SQL and SQL has a SELECT TOP (in T-SQL) but not a SELECT BOTTOM (no such thing).
There is an easy way around it though, just order descending and then do a F...
How to properly reuse connection to Mongodb across NodeJs application and modules
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},
getDb: function() {
return _db;
}
};
To use it, you would do this in your app.js:
var mongoUtil = require( 'mongoUtil' );
mongoUtil.connectToServer( function( err, client ) {
if (err) console.log(err);
// start the rest of your app here
} );
And then, when you need access to...