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					... necessary or i can just show it immediately?
                
– Coder123
                Mar 6 '19 at 8:15
            
        
    
            
	    
        
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							How to randomly select an item from a list?
					...y selects a single item
For reproducibility, you can do:
np.random.seed(123)
np.random.choice(foo) # first call will always return 'c'
For samples of one or more items, returned as an array, pass the size argument:
np.random.choice(foo, 5)          # sample with replacement (default)
np.random...				
				
				
							How do I format a number in Java?
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From this thread, there are different ways to do this:
double r = 5.1234;
System.out.println(r); // r is 5.1234
int decimalPlaces = 2;
BigDecimal bd = new BigDecimal(r);
// setScale is immutable
bd = bd.setScale(decimalPlaces, BigDecimal.ROUND_HALF_UP);
r = bd.doubleValue();
System.out.pri...				
				
				
							How should one go about choosing a default TCP/IP port for a new service?
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                You're suggesting he chooses a port under 100?
                
– mpen
                Dec 13 '13 at 7:04
                        
                            
                        
            
        
    
    
        
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							Viewing contents of a .jar file
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                This works cross-platform while 7-Zip mentioned in another answer is Windows-specific.
                
– Brad Cupit
                Dec 2 '15 at 21:09
            
        
    
    
        
            
            
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							Why would I want stage before committing in Git?
					...ther than adding it and then commiting it?
                
– kiwicomb123
                Aug 1 '17 at 16:27
                        
                            
                        
            
        
    
    
        
            
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							Split string every nth character?
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>>> line = '1234567890'
>>> n = 2
>>> [line[i:i+n] for i in range(0, len(line), n)]
['12', '34', '56', '78', '90']
    
    
        
            
            
                
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							C++, copy set to vector
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        123
        
    
            
                
            
    
        
        
        
    
    
Just use the constructor for the vector that takes iterators:
std::set<T> s;
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							How to parse/read a YAML file into a Python object? [duplicate]
					...tion running in a Docker container o embedded (as quick examples) might choose to not use a virtualenv when it's an extra layer that provides no isolation above and beyond what the container itself is already providing.
                
– Joe Holloway
                Feb 9 '19 at 3:47
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							Putting HTML inside Html.ActionLink(), plus No Link Text?
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