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How do I add custom field to Python log format string?
...ng.DEBUG, msg, args, extra=extra, **kwargs)
*repeat for info, warning, etc*
logger = CustomLogger('CustomLogger', logging.DEBUG)
formatter = logging.Formatter('%(asctime)s [%(foo)s] %(message)s')
handler = logging.StreamHandler()
handler.setFormatter(formatter)
logger.addHandler(handler)
log...
Mediator Vs Observer Object-Oriented Design Patterns
...ter themselves and receive notifications upon events, e. g. ButtonListener etc.
Both of these patterns allow for lesser coupling, but are quite different.
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Any reason not to use '+' to concatenate two strings?
... matter of other Python implementations, such as pypy, jython, ironpython, etc...
– jsbueno
Apr 6 '12 at 13:50
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Timeout on a function call
...nate function terminate() ... Note that exit handlers and finally clauses, etc., will not be executed. Note that descendant processes of the process will not be terminated – they will simply become orphaned.
– abalcerek
May 10 '17 at 14:03
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Getters \ setters for dummies
... 456, _c : 789,
getA : function(){ return this._a; },
getB : ..., getC : ..., setA : ..., setB : ..., setC : ...
};
For the above examples, the internal property names are abstracted with an underscore in order to discourage users from simply doing foo.bar vs. foo.get( 'bar' ) and getting ...
Square retrofit server mock for testing
... static IRestService mRestService = null;
public static IRestService getClient() {
if(mRestService == null) {
final OkHttpClient client = new OkHttpClient();
// ***YOUR CUSTOM INTERCEPTOR GOES HERE***
client.interceptors().add(new FakeInterceptor());
...
django urls without a trailing slash do not redirect
...it signified a beginning of something new, not the end of something (e.g. /etc), but this allows for the standard (/view) and the non-standard (/view/).
– David Betz
Nov 3 '15 at 16:58
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Upgrading PHP in XAMPP for Windows?
...lude configuration changes to PHP (php.ini) Apache (httpd.conf and others) etc.
– Kwebble
Jul 31 '15 at 13:03
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Why does the order in which libraries are linked sometimes cause errors in GCC?
... libraries
$ export LD_LIBRARY_PATH=. # not needed if libs go to /usr/lib etc
$ g++ -fpic -shared d.cpp -o libd.so
$ g++ -fpic -shared b.cpp -L. -ld -o libb.so # specifies its dependency!
$ g++ -L. -lb a.cpp # wrong order (works on some distributions)
$ g++ -Wl,--as-needed -L. -lb a.cpp # wrong or...
How does C compute sin() and other math functions?
...at book, you can decide if you have a hardware adder, multiplier, divider, etc, and decide which operations are fastest. e.g. If you had a really fast divider, the fastest way to calculate sine might be P1(x)/P2(x) where P1, P2 are Chebyshev polynomials. Without the fast divider, it might be just P(...