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How to get a complete list of object's methods and attributes?
...ble attributes, nothing more. You could though filter callable attributes, and, using the inspect module determine the class methods, methods or functions.
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What are all the uses of an underscore in Scala?
I've taken a look at the list of surveys taken on scala-lang.org and noticed a curious question: " Can you name all the uses of “_”? ". Can you? If yes, please do so here. Explanatory examples are appreciated.
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Difference between except: and except Exception as e: in Python
...e following snippets of code do the same thing. They catch every exception and execute the code in the except: block
5 An...
How can you set class attributes from variable arguments (kwargs) in python
... constructor (or other function) that takes a variable number of arguments and then sets them as class attributes conditionally.
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Is it possible to make abstract classes in Python?
...ct classes. Use the abstractmethod decorator to declare a method abstract, and declare a class abstract using one of three ways, depending upon your Python version.
In Python 3.4 and above, you can inherit from ABC. In earlier versions of Python, you need to specify your class's metaclass as ABCMet...
Create a custom event in Java
...dListener(responder);
initiater.sayHello(); // Prints "Hello!!!" and "Hello there..."
}
}
Related article: Java: Creating a custom event
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Design patterns or best practices for shell scripts [closed]
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I wrote quite complex shell scripts and my first suggestion is "don't". The reason is that is fairly easy to make a small mistake that hinders your script, or even make it dangerous.
That said, I don't have other resources to pass you but my personal experienc...
Getting the class name of an instance?
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This is used often enough in logging, orm and framework code that there really should be a builtin typename(x) ... requiring a user to look at the "guts" to get a name isn't terribly pythonic, IMO.
– Erik Aronesty
Apr 18 '18 at ...
What does the “__block” keyword mean?
...eated in a special way when it is used inside a block. Normally, variables and their contents that are also used in blocks are copied, thus any modification done to these variables don't show outside the block. When they are marked with __block, the modifications done inside the block are also visib...
Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
...s no such thing as "unsigned integer overflow") means undefined behaviour. And this means anything can happen, and discussing why does it happen under the rules of C++ doesn't make sense.
C++11 draft N3337: §5.4:1
If during the evaluation of an expression, the result is not mathematically de...