Fixed Unnecessary list comprehension

[saippuakauppias]

➜ ruff check --select=C419
django/forms/formsets.py:388:13: C419 Unnecessary list comprehension
django/forms/formsets.py:579:16: C419 Unnecessary list comprehension
tests/schema/tests.py:304:30: C419 Unnecessary list comprehension
tests/servers/test_basehttp.py:160:17: C419 Unnecessary list comprehension
Found 4 errors.

Rule description: https://docs.astral.sh/ruff/rules/unnecessary-comprehension-any-all/

Why is this bad?

any and all take any iterators, including generators. Converting a generator to a list by way of a list comprehension is unnecessary and reduces performance due to the overhead of creating the list.

For example, compare the performance of all with a list comprehension against that of a generator (~40x faster here):

In [1]: %timeit all([i for i in range(1000)])
8.14 µs ± 25.4 ns per loop (mean ± std. dev. of 7 runs, 100,000 loops each)

In [2]: %timeit all(i for i in range(1000))
212 ns ± 0.892 ns per loop (mean ± std. dev. of 7 runs, 1,000,000 loops each)

[felixxm]

That's not true, you don't put effort to understand the original comment.