Python args & Kwargs

Today,we some about the argument and arguments ...

# !/usr/bin/python def Fun (*args):    for in  args:        print  value if __name__ ' __main__ ' : Fun        (11,22,33,44,55)

What is type of (*args)?

Do your really want to know, just keep read ...

# !/usr/bin/python def Fun (*args):    print  type (args)    for in  args:         Print value if __name__ ' __main__ ' : Fun        (11,22,33,44,55)

Okay,we know the (*args) just a tuple type?

So,we can input a tuple as argument ...

# !/usr/bin/python def Fun (*args):    print  type (args)    for in  args:         Print value if __name__ ' __main__ ' :        my_tuple= (11,22,33,44,55)    

Oh,what happened? The result is no-what we expect ...

See the below code,you'll find the answer ...

# !/usr/bin/python def Fun (*args):    print  type (args)    for in  args:         Print value if __name__ ' __main__ ' :        my_tuple= (11,22,33,44,55) Fun    (*my_tuple)

Okay,see we got the result what we expect ...

Good,time to talk (**kwargs)

#!/usr/bin/pythondefFun (* *Kwargs):Printtype (Kwargs) forKeyinchKwargs:Print 'Key:', Key,'Value:', Kwargs[key]if __name__=='__main__': Fun (name='Frank', age=23,school='Imut')

of course,you can input a dict as argument,but Don ' t forget the (* *) again ...

If you really want to forget (* *), like the below code ...

#!/usr/bin/pythondefFun (* *Kwargs):Printtype (Kwargs) forKeyinchKwargs:Print 'Key:', Key,'Value:', Kwargs[key]if __name__=='__main__': My_dict={'name':'Frank',' Age': 23,'School':'Imut'} fun (my_dict)

You'll got a error like the below:

So, you don ' t really want-do it again, right ... haha

#!/usr/bin/pythondefFun (* *Kwargs):Printtype (Kwargs) forKeyinchKwargs:Print 'Key:', Key,'Value:', Kwargs[key]if __name__=='__main__': My_dict={'name':'Frank',' Age': 23,'School':'Imut'} fun (**MY_DICT)

Okay! See the right Result:

Thank you!

Python args & Kwargs