I have a mac address in this format 

```
00:45:36:45:f2:00  

```

I want to convert this mac address into byte array. I mean, by removing the ':' in between, I get total of 6 bytes and those 6 bytes should sit as six bytes in a byte array. And how is that byte array converted into an integer? Is there any in-built function in python that would do that with very very less execution time(like in microseconds)?