Merge pull request #196 from dan98765/add_black_formatter_precommit_hook

Add black formatter precommit hook

Author: syrusakbary

.pre-commit-config.yaml

@@ -1,18 +1,23 @@
+repos:
 -   repo: git://github.com/pre-commit/pre-commit-hooks
-    sha: v0.8.0
+    rev: v1.3.0
     hooks:
-    -   id: autopep8-wrapper
-        args:
-        - -i
-        - --ignore=E128,E309,E501
-        exclude: ^docs/.*$
     -   id: check-json
     -   id: check-yaml
     -   id: debug-statements
     -   id: end-of-file-fixer
         exclude: ^docs/.*$
     -   id: trailing-whitespace
+        exclude: README.md
     -   id: pretty-format-json
         args:
         - --autofix
-        - --indent=4
+-   repo: https://github.com/asottile/pyupgrade
+    rev: v1.4.0
+    hooks:
+    -   id: pyupgrade
+-   repo: https://github.com/ambv/black
+    rev: 18.6b4
+    hooks:
+    - id: black
+      language_version: python3.6

conftest.py

@@ -4,27 +4,32 @@
 
 try:
     import pyannotate_runtime
+
     PYANOTATE_PRESENT = True
 except ImportError:
     PYANOTATE_PRESENT = False
 
 if PYANOTATE_PRESENT:
+
     def pytest_collection_finish(session):
         """Handle the pytest collection finish hook: configure pyannotate.
         Explicitly delay importing `collect_types` until all tests have
         been collected.  This gives gevent a chance to monkey patch the
         world before importing pyannotate.
         """
         from pyannotate_runtime import collect_types
+
         collect_types.init_types_collection()
 
     @pytest.fixture(autouse=True)
     def collect_types_fixture():
         from pyannotate_runtime import collect_types
+
         collect_types.resume()
         yield
         collect_types.pause()
 
     def pytest_sessionfinish(session, exitstatus):
         from pyannotate_runtime import collect_types
+
         collect_types.dump_stats("type_info.json")