From 58dd5bddaf016a16853f0064edec357864fa7e4a Mon Sep 17 00:00:00 2001
From: Andrei Pashkin <andrew.pashkin@gmx.co.uk>
Date: Sun, 13 Sep 2020 12:57:52 +0300
Subject: [PATCH] Introduce Black - formatting tool.

---
 pyproject.toml | 2 ++
 tox.ini        | 8 ++++++++
 2 files changed, 10 insertions(+)
 create mode 100644 pyproject.toml

diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..a8f43fe
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,2 @@
+[tool.black]
+line-length = 79
diff --git a/tox.ini b/tox.ini
index ff4322e..b9f902f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -45,6 +45,7 @@ deps =
     pdbpp
     sphinx>=3,<4
     dunamai < 2
+    black
 
 [testenv:write_version]
 skip_install = true
@@ -60,3 +61,10 @@ whitelist_externals = make
 commands = make html
 deps =
     {[testenv:dev]deps}
+
+[testenv:black]
+skip_install = true
+commands =
+    black {posargs} {toxinidir}/src/py {toxinidir}/scripts {toxinidir}/setup.py
+deps =
+    {[testenv:dev]deps}