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When are you truly forced to use UUID as part of the design?
...sions:
Version 4 UUIDs are essentially just 16 bytes of randomness pulled from a cryptographically secure random number generator, with some bit-twiddling to identify the UUID version and variant. These are extremely unlikely to collide, but it could happen if a PRNG is used or if you just happen t...
Git log to get commits only for a specific branch
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From what it sounds like you should be using cherry:
git cherry -v develop mybranch
This would show all of the commits which are contained within mybranch, but NOT in develop. If you leave off the last option (mybranch), i...
What's the simplest way to subtract a month from a date in Python?
... 0, 0)
Edit Corrected to handle the day as well.
Edit See also the answer from puzzlement which points out a simpler calculation for d:
d = min(date.day, calendar.monthrange(y, m)[1])
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What is so bad about singletons? [closed]
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Paraphrased from Brian Button:
They are generally used as a global instance, why is that so bad? Because you hide the dependencies of your application in your code, instead of exposing them through the interfaces. Making something glob...
Connecting to TCP Socket from browser using javascript
...ponse received, log it:
console.log("Data received from server:" + value);
}
// Close the TCP connection
mySocket.close();
}
);
},
e => console.error("Sending error: ",...
How to add Action Bar from support library into PreferenceActivity?
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}
return mDelegate;
}
}
No more hacking. Code taken from AppCompatPreferenceActivity.java.
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Django : How can I see a list of urlpatterns?
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All I get from that is TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
– Paul Tomblin
Dec 13 '13 at 20:04
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What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
...nt number of win32-centric or IDE-bound members.
One concern in migrating from SVN is that SVN's GUI frontends and IDE integration are more mature than those of any of the distributed SCMs. Also, if you currently make heavy use of precommit script automation with SVN (ie. requiring unit tests to pa...
Should all Python classes extend object?
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In Python 2, not inheriting from object will create an old-style class, which, amongst other effects, causes type to give different results:
>>> class Foo: pass
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>>> type(Foo())
<type 'instance'>
vs.
>>> class Ba...
Do the JSON keys have to be surrounded by quotes?
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You are correct to use strings as the key. Here is an excerpt from RFC 4627 - The application/json Media Type for JavaScript Object Notation (JSON)
2.2. Objects
An object structure is represented as a pair of curly brackets
surrounding zero or more name/value pairs (or memb...