#  #

 return [] 

** return  None**



```python
# -*- coding: UTF-8 -*-

def sum(num1,num2):
	# 
	if not (isinstance (num1,(int ,float)) and isinstance (num2,(int ,float))):
		raise TypeError('')
	return num1+num2

print(sum(1,2))
```



```txt
3
```

`isinstance()` ``,

![](http://upload-images.jianshu.io/upload_images/2136918-cfe5907d67e912d8?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)



```python
# -*- coding: UTF-8 -*-

def  division ( num1, num2 ):
	# 
         a = num1 % num2
         b = (num1-a) / num2
         return b , a

num1 , num2 = division(9,4)
tuple1 = division(9,4)

print (num1,num2)
print (tuple1)
```



```txt
2.0 1
(2.0, 1)
```



 ruturn 

Python Python 

**Python **