I was just playing around with the concept of Python dataclasses and abstract classes and what i am trying to achieve is basically create a frozen dataclass but at the same time have one attribute ...

What are some examples of when using a frozenset would be the best option?

When I attempt to import hashlib in any context, it throws this error: File "<stdin>", line 1, in <module> File "build/bdist.macosx-10.11-intel/egg/hashlib.py", line 115, in <modul...

I have an object which needs to be "tagged" with 0-3 strings (out of a set of 20-some possibilities); these values are all unique and order doesn't matter. The only operation that needs to be done ...

With the following statement: rules = association_rules(frequent_itemsets, metric="lift", min_threshold=1.2) I get a data frame of rules in the format: frozenset({'Co_Apples'}) But I need to...

I was tinkering around with Python's set and frozenset collection types. Initially, I assumed that frozenset would provide a better lookup performance than set, as its immutable and thus could exp...

Suppose I generate a frozenset with A = frozenset(frozenset([element]) for element in [1,2,3]) And I have the empty set E = frozenset(frozenset()) Now I want to have the union of both sets: ...

I have a list of tuples, each tuple of which contains one string and two integers. The list looks like this: x = [('a',1,2), ('b',3,4), ('x',5,6), ('a',2,1)] The list contains thousands of such ...

I have this error on each my command with Python: ➜ /tmp sudo easy_install pip Traceback (most recent call last): File "/usr/bin/easy_install-2.7", line 11, in load_entry_point('setuptools==1....

It obviously works but are there cases where two sets of same elements happen to add two entries in Dict? I guess I got this condition earlier and changed my code from frozenset(...) to tuple(sorte...