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Why aren't python nested functions called closures?
					I have seen and used nested functions in Python, and they match the definition of a closure.  So why are they called  nested functions  instead of  closures ?
                    
                    
                        
                            
                                
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							Among $_REQUEST, $_GET and $_POST which one is the fastest?
					...ST, by default, contains the contents of $_GET, $_POST and $_COOKIE. 
But it's only a default, which depends on variables_order ; and not sure you want to work with cookies.
If I had to choose, I would probably not use $_REQUEST, and I would choose $_GET or $_POST -- depending on what my applicati...				
				
				
							Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
					It looks the same for me,but I'm not sure,
                    
                    
                        
                            
                                
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							Are nested try/except blocks in python a good programming practice?
					I'm writing my own container, which needs to give access to a dictionary inside by attribute calls. The typical use of the container would be like this:
                    
                    
                        
                            
                                
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							unique object identifier in javascript
					...in javascript, so I can see if they are the same. I don't want to use equality operators, I need something like the id() function in python. 
                    
                    
                        
                            
                                
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							Python constructors and __init__
					...ion overloading in Python, meaning that you can't have multiple functions with the same name but different arguments.
In your code example, you're not overloading __init__(). What happens is that the second definition rebinds the name __init__ to the new method, rendering the first method inaccessi...				
				
				
							Why is “if not someobj:” better than “if someobj == None:” in Python?
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In the first test, Python try to convert the object to a bool value if it is not already one. Roughly, we are asking the object : are you meaningful or not ? This is done using the following algorithm :
If the object has a __nonzero__ special method (as do numeric built-ins, int and float), it...				
				
				
							How to access outer class from an inner class?
					I have a situation like so...
                    
                    
                        
                            
                                
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							Get the full URL in PHP
					...' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
Editor's note: using this code has security implications. The client can set HTTP_HOST and REQUEST_URI to any arbitrary value it wants.
    
    
        
            
            
                
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							Header files for x86 SIMD intrinsics
					...or the different x86 SIMD instruction set extensions (MMX, SSE, AVX, ...)? It seems impossible to find such a list online. Correct me if I'm wrong.
                    
                    
                        
                            
                                
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