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+# How the Python in this tree is formatted, and how its imports are ordered.
+# `.githooks/pre-commit` applies both to what you staged (install it with
+# `git config core.hooksPath .githooks`); `ruff format --check .` asks.
+#
+# Adopted when PR #1 arrived black-formatted: ruff's formatter IS black's
+# output, it is one static binary instead of a Python dependency chain, and it
+# is fast enough that a pre-commit hook is free. Configuration is deliberately
+# left at the defaults -- every knob turned here is an argument somebody has to
+# have again later.
+
+# The version this tree was formatted with, enforced by ruff itself: a
+# formatter whose output moves between releases turns "formatted" into
+# "formatted by whoever committed last", and the diff lands on the next
+# person. A mismatch is refused with both versions named rather than quietly
+# reformatting everything. Bumping it is one line here, one in the hook's
+# install hint, and a reformat commit (added to .git-blame-ignore-revs) --
+# the honest cost of a new version.
+required-version = "==0.16.3"
+
+target-version = "py311"
+line-length = 88
+
+[lint]
+# Import sorting, and nothing else. `ruff check` can enforce a great deal more
+# and one day it might, but this hook's job is formatting: one that also
+# refused a commit over an unused variable would be a different feature, and
+# not one anybody asked for.
+#
+# Sorting is safe here because ruff sorts import BLOCKS and never hoists across
+# a statement: every test file's `sys.path.insert(...)` sits between the
+# standard library and the `idatui` imports, and that line is exactly what
+# makes them importable.
+select = ["I"]