def checkDomain(**dictArgum):
for key in dictArgum.keys():
inn=0
out=0
hel=0
pred=dictArgum[key]
#iterate over the value i.e pred.. increase inn, out and hel values
if inn!=3 or out!=3 or hel!=6:
dictArgum.pop(key, None)# this tried
del dictArgum[key] ###This also doesn't remove the keys
print "The old length is ", len(predictDict) #it prints 86
checkDomain(**predictDict) #pass my dictionary
print "Now the length is ", len(predictDict) #this also prints 86
另外，我请求你帮助我理解如何回复这些回复。每次我都没能恰当地回复。换行或编写代码对我来说不起作用。谢谢你。
发生这种情况是因为字典被解压缩并重新打包到关键字参数**dictargum中，因此您在函数中看到的字典是一个不同的对象：
>>> def demo(**kwargs):
print id(kwargs)
>>> d = {"foo": "bar"}
>>> id(d)
50940928
>>> demo(**d)
50939920 # different id, different object
而是直接传递字典：
def checkDomain(dictArgum): # no asterisks here
...
print "The old length is ", len(predictDict)
checkDomain(predictDict) # or here
或返回并分配：
def checkDomain(**dictArgum):
...
return dictArgum # return modified dict
print "The old length is ", len(predictDict)
predictDict = checkDomain(**predictDict) # assign to old name
