Converting int to bytes in Python 3

From python 3.2 you can do https://docs.python.org/3/library/stdtypes.html#int.to_bytes Accordingly, x == int_from_bytes(int_to_bytes(x)). Note that the above encoding works only for unsigned (non-negative) integers. For signed integers, the bit length is a bit more tricky to calculate:

What is sys.maxint in Python 3?

The sys.maxint constant was removed, since there is no longer a limit to the value of integers. However, sys.maxsize can be used as an integer larger than any practical list or string index. It conforms to the implementation’s “natural” integer size and is typically the same as sys.maxint in previous releases on the same platform … Read more

Using Queue in python

You do This imports all the classes from the queue module already. Change that line to CAREFUL: “Wildcard imports (from import *) should be avoided, as they make it unclear which names are present in the namespace, confusing both readers and many automated tools”. (Python PEP-8) As an alternative, one could use:

How to delete last item in list?

If I understood the question correctly, you can use the slicing notation to keep everything except the last item: But a better way is to delete the item directly: Note 1: Note that using record = record[:-1] does not really remove the last element, but assign the sublist to record. This makes a difference if … Read more