Add pre-commit configuration (#83)

chore: add pre-commit configuration

.pre-commit-config.yaml

@@ -0,0 +1,17 @@
+# See https://pre-commit.com for more information
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.0.1
+  hooks:
+  - id: trailing-whitespace
+  - id: end-of-file-fixer
+  - id: check-yaml
+  - id: check-added-large-files
+  - id: mixed-line-ending
+
+- repo: https://github.com/psf/black
+  rev: 21.9b0
+  hooks:
+  - id: black
+    language_version: python3
+    entry: black --target-version=py36

runtests

@@ -20,7 +20,7 @@ if __name__ == "__main__":
             'tests.attributes',
             'tests.misc_models',
             'tests.set_and_get',
-            'tests.forms'
+            'tests.forms',
         ]
     else:
         tests = ['tests.{}'.format(arg) for arg in sys.argv[1:]]