[flake8]

# This is larger than the default from black.
#
# We let black wrap our code to its default width of 88, but
# we allow comments and strings (which black doesn't touch)
# to be this wide.
max-line-length = 99

extend-ignore =
    # Whitespace before colon in `a[x + 1 :]`
    # (We allow this for clarity, and so does black.)
    E203