diff --git a/sqldemo.py b/sqldemo.py
index da9b3fe..0d3796a 100644
--- a/sqldemo.py
+++ b/sqldemo.py
@@ -3,32 +3,31 @@
 from sqlalchemy import Table, Column, Integer, String, MetaData, ForeignKey
 from sqlalchemy.sql import text
 
-
-
 engine = create_engine('sqlite:///:memory:', echo=True)
 
+
 def main():
   conn = engine.connect()
   metadata = MetaData()
-  createTables(metadata, conn)
+  create_tables(metadata, conn)
   statement = text("INSERT INTO users (id, name, fullname, age)"
-  " values (1, 'hal','Halsted Matthew Larsson', 37)")
+                   " values (1, 'hal','Halsted Matthew Larsson', 37)")
   conn.execute(statement)
 
   statement = text("INSERT INTO users (id, name, fullname, age)"
-  " values (2, 'Emma','Emma Doovid Judith Harringtowne', " + str(random.randint(10,16)) + ")")
+                   " values (2, 'Emma','Emma Doovid Judith Harringtowne', " + str(random.randint(10, 16)) + ")")
   conn.execute(statement)
 
   statement = text("INSERT INTO pets (name, age, userid)"
-  " values ('Josie', 4, 1)")
+                   " values ('Josie', 4, 1)")
   conn.execute(statement)
 
   statement = text("INSERT INTO pets (name, age, userid)"
-  " values ('Bobbi', 24, 2)")
+                   " values ('Bobbi', 24, 2)")
   conn.execute(statement)
 
   statement = text("INSERT INTO pets (name, age, userid)"
-  " values ('Bubbles', 14, 2)")
+                   " values ('Bubbles', 14, 2)")
   conn.execute(statement)
 
   query = text("SELECT users.name, pets.name from pets JOIN users ON pets.userid = users.id")
@@ -36,24 +35,21 @@ def main():
   print(result)
 
 
-
-
-
-
-def createTables(metadata, conn):
-  users = Table('users', metadata,
-    Column('id', Integer, primary_key=True),
-    Column('name', String),
-    Column('age', Integer),
-    Column('fullname', String))
-
-
-  pets = Table('pets', metadata,
-    Column('id', Integer, primary_key=True),
-    Column('userId', Integer),
-    Column('name', String),
-    Column('age', Integer),
-  )
+def create_tables(metadata, conn):
+  users = Table('users',
+                metadata,
+                Column('id', Integer, primary_key=True),
+                Column('name', String),
+                Column('age', Integer),
+                Column('fullname', String),)
+
+  pets = Table('pets',
+               metadata,
+               Column('id', Integer, primary_key=True),
+               Column('userId', Integer),
+               Column('name', String),
+               Column('age', Integer),)
   metadata.create_all(engine)
 
+
 main()