Best way to implement a simple `queue` 
Working with `set`s
Looping techniques
`weakref` proxies
Binary record packing with `bytearray`
e4e55265c3ce9f85b3cc62a40ef446ad6afc9dc3
Best way to implement a simple `queue` 
Working with `set`s
Looping techniques
`weakref` proxies
Binary record packing with `bytearray`