大约有 40,000 项符合查询结果(耗时:0.0285秒) [XML]
List all indexes on ElasticSearch server?
					I would like to list all indexes present on an ElasticSearch server. I tried this:
                    
                    
                        
                            
                                
                                        22 Answers
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							Is there a simple, elegant way to define singletons? [duplicate]
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I don't really see the need, as a module with functions (and not a class) would serve well as a singleton. All its variables would be bound to the module, which could not be instantiated repeatedly anyway. 
If you do wish to use a cla...				
				
				
							How to list all functions in a Python module?
					I have a python module installed on my system and I'd like to be able to see what functions/classes/methods are available in it.   
                    
                    
                        
                            
                                
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							How to detect reliably Mac OS X, iOS, Linux, Windows in C preprocessor? [duplicate]
					... Apple platform"
    #endif
#elif __linux__
    // linux
#elif __unix__ // all unices not caught above
    // Unix
#elif defined(_POSIX_VERSION)
    // POSIX
#else
#   error "Unknown compiler"
#endif
The defined macros depend on the compiler that you are going to use.
The _WIN64 #ifdef can be nes...				
				
				
							Iterate over object attributes in python
					...foo = 1
...     bar = 'hello'
...     def func(self):
...         return 'call me'
...
>>> obj = Cls()
calling dir on the object gives you back all the attributes of that object, including python special attributes. Although some object attributes are callable, such as methods.
>>&...				
				
				
							What does functools.wraps do?
					...   def with_logging(*args, **kwargs):
        print(func.__name__ + " was called")
        return func(*args, **kwargs)
    return with_logging
then when you say
@logged
def f(x):
   """does some math"""
   return x + x * x
it's exactly the same as saying
def f(x):
    """does some math"""
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							Difference between String replace() and replaceAll()
					What's the difference between java.lang.String 's  replace()  and  replaceAll()  methods, 
other than later uses regex? For simple substitutions like, replace  .  with  /   , 
is there any difference?
                    
                    
                        
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							Class with Object as a parameter
					... Table to be a new-style class (as opposed to "classic" class).
In Python3 all classes are new-style classes, so this is no longer necessary.
New style classes have a few special attributes that classic classes lack.
class Classic: pass
class NewStyle(object): pass
print(dir(Classic))
# ['__doc__...				
				
				
							How to get instance variables in Python?
					Is there a built-in method in Python to get an array of all a class' instance variables? For example, if I have this code:
                    
                    
                        
                            
                                
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							Using logging in multiple modules
					I have a small python project that has the following structure - 
                    
                    
                        
                            
                                
                                        11 Answers
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