I am wondering if, and if so which guarantees there are about the pickle module when using pickle.dump[s].
Specifically for my problem I am pickling list[T] where T can be bool, int, decimal, time, date, datetime, timedelta or str, so the list is homogeneous (one type per list). I wonder if it is guaranteed that lists that would be equal in python are also guaranteed to have the same pickled result, at least for the types given.
I couldn't find any guarantees online, but from some basic testing I couldn't find a case where the data would be different.
So TL;DR:
Given two list[T] where T is bool | int | decimal | time | date | datetime | timedelta | str that are equal in python, will the resulting pickle.dump() objects also be equal?
There are cases where values of different types are equal, such as 1 = 1.0 and 0 == False. Lists containing these values will be equal, but the pickle dumps are different so that it can restore them with the correct types.
>>> l1 = [0] # T is int
>>> l2 = [False] # T is bool
>>> l1 == l2
True
>>> pickle.dumps(l1) == pickle.dumps(l2)
False