Hello,
I've put up two PRs to compare the effect of running black vs. autopep8 on the Python codebase. * black: https://github.com/apache/arrow/pull/6810 65 files changed, 7855 insertions(+), 5215 deletions(-) * autopep8: https://github.com/apache/arrow/pull/6811 20 files changed, 137 insertions(+), 118 deletions(-) I've configured black to try and minimize changes (for example, avoid normalizing string quoting style). Still, the number of changes is humongous and they add 2600 lines to the codebase (which is a tangible amount of vertical space). Regards Antoine.
