From f0ddda966533f10ca341a53e0efc0435dcac4edb Mon Sep 17 00:00:00 2001
From: Chad Whitacre <chad@zetaweb.com>
Date: Fri, 31 Jul 2020 08:14:39 -0400
Subject: [PATCH] Add a codecheck for tabs in indentation

---
 newsfragments/3326.minor | 0
 setup.cfg                | 8 +++++---
 2 files changed, 5 insertions(+), 3 deletions(-)
 create mode 100644 newsfragments/3326.minor

diff --git a/newsfragments/3326.minor b/newsfragments/3326.minor
new file mode 100644
index 000000000..e69de29bb
diff --git a/setup.cfg b/setup.cfg
index c2d224225..f4539279e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -7,6 +7,8 @@ bdist_egg = update_version bdist_egg
 bdist_wheel = update_version bdist_wheel
 
 [flake8]
-# For now, only use pyflakes errors; flake8 is still helpful because it allows
-# ignoring specific errors/warnings when needed.
-select = F
\ No newline at end of file
+# Enforce all pyflakes constraints, and also prohibit tabs for indentation.
+# Reference:
+#   https://flake8.pycqa.org/en/latest/user/error-codes.html
+#   https://pycodestyle.pycqa.org/en/latest/intro.html#error-codes
+select = F, W191