虚心请教，实参传的字典为啥没走到形参的不定长关键字参数里的print，而且还报错了

def dump(index, default=0, *args, **kw):
print('打印函数参数')

print('index:', index)
print('default:', default)
for i, arg in enumerate(args):
    print(f'arg[{i}]:', arg)
for key,value in kw:
    print(f'keyword_argument {key}:{value}')
print('')

dump(0)
dump(0,2)
dump(0,2,"Hello","World")
dump(0,2,"Hello","World", install='Python', run='Python Program')

打印函数参数

index: 0
default: 2
arg[0]: Hello
arg[1]: World
Traceback (most recent call last):
File "/Users/qujie/Desktop/python- test/def_1.py", line 44, in
dump(0,2,"Hello","World", install='Python', run='Python Program')
File "/Users/qujie/Desktop/python- test/def_1.py", line 36, in dump
for key,value in kw:
ValueError: too many values to unpack (expected 2)

都说了传的字典了，遍历的时候咋只遍历key呢

for key,value in kw.items():

for key, value in kw.items()
这样

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明白啦，谢谢大家，还想再想问一个小小问题哈，为啥实参的k,v格式，不能写成这样呢
{'install':'Python', 'run':'Python Program')}