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, 18 insertions, 8 deletions

diff --git a/examples/elementtree/pickle.py b/examples/elementtree/pickle.py
index d40af275b..a86fe30e5 100644
--- a/examples/elementtree/pickle.py
+++ b/examples/elementtree/pickle.py
@@ -6,15 +6,22 @@ structure in distinct rows using two additional mapped entities.  Note that the
 styles of persistence are identical, as is the structure of the main Document class.
 """
 
-from sqlalchemy import (create_engine, MetaData, Table, Column, Integer, String,
-    PickleType)
+from sqlalchemy import (
+    create_engine,
+    MetaData,
+    Table,
+    Column,
+    Integer,
+    String,
+    PickleType,
+)
 from sqlalchemy.orm import mapper, Session
 
 import sys, os
 
 from xml.etree import ElementTree
 
-e = create_engine('sqlite://')
+e = create_engine("sqlite://")
 meta = MetaData()
 
 # setup a comparator for the PickleType since it's a mutable
@@ -22,12 +29,15 @@ meta = MetaData()
 def are_elements_equal(x, y):
     return x == y
 
+
 # stores a top level record of an XML document.
 # the "element" column will store the ElementTree document as a BLOB.
-documents = Table('documents', meta,
-    Column('document_id', Integer, primary_key=True),
-    Column('filename', String(30), unique=True),
-    Column('element', PickleType(comparator=are_elements_equal))
+documents = Table(
+    "documents",
+    meta,
+    Column("document_id", Integer, primary_key=True),
+    Column("filename", String(30), unique=True),
+    Column("element", PickleType(comparator=are_elements_equal)),
 )
 
 meta.create_all(e)
@@ -39,6 +49,7 @@ class Document(object):
         self.filename = name
         self.element = element
 
+
 # setup mapper.
 mapper(Document, documents)
 
@@ -58,4 +69,3 @@ document = session.query(Document).filter_by(filename="test.xml").first()
 
 # print
 document.element.write(sys.stdout)
-