python是否支持重载

from functools import singledispatch   
@singledispatch 
def function(obj): 
    print('%r'%(obj))
       
@function.register(int) 
def function_int(obj): 
    print('Integer: %d'%(obj)) 
  
@function.register(str) 
def function_int(obj): 
    print('String: %s'%(obj)) 
  
@function.register(list) 
def function_list(obj): 
    print('List: %r'%(obj)) 
  
  
if __name__ == "__main__": 
     function(1) 
     function('hello') 
     function(range(3)) 
     function(object)