Run black -l 79 against all source files

This is a straight reformat run using black as is, with no edits
applied at all.

The black run will format code consistently, however in
some cases that are prevalent in SQLAlchemy code it produces
too-long lines.   The too-long lines will be resolved in the
following commit that will resolve all remaining flake8 issues
including shadowed builtins, long lines, import order, unused
imports, duplicate imports, and docstring issues.

Change-Id: I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9

1 files changed, 7 insertions, 4 deletions

diff --git a/test/perf/invalidate_stresstest.py b/test/perf/invalidate_stresstest.py
index cbf20e18b..29fbbb118 100644
--- a/test/perf/invalidate_stresstest.py
+++ b/test/perf/invalidate_stresstest.py
@@ -1,9 +1,11 @@
 from __future__ import print_function
 
 import gevent.monkey
+
 gevent.monkey.patch_all()  # noqa
 
 import logging
+
 logging.basicConfig()  # noqa
 # logging.getLogger("sqlalchemy.pool").setLevel(logging.INFO)
 from sqlalchemy import event
@@ -12,8 +14,9 @@ import sys
 from sqlalchemy import create_engine
 import traceback
 
-engine = create_engine('mysql+pymysql://scott:tiger@localhost/test',
-                       pool_size=50, max_overflow=0)
+engine = create_engine(
+    "mysql+pymysql://scott:tiger@localhost/test", pool_size=50, max_overflow=0
+)
 
 
 @event.listens_for(engine, "connect")
@@ -32,10 +35,10 @@ def worker():
 
         except Exception:
             # traceback.print_exc()
-            sys.stderr.write('X')
+            sys.stderr.write("X")
         else:
             conn.close()
-            sys.stderr.write('.')
+            sys.stderr.write(".")
 
 
 def main():