Blacken some code.

data.py

@@ -29,14 +29,6 @@ conn = None
 
 
 TABLES = [
-    '''\
-    create table populations (
-        id INTEGER PRIMARY KEY AUTOINCREMENT,
-        species TEXT,
-        pop INTEGER,
-        planet INTEGER,
-        FOREIGN KEY(planet) REFERENCES planets(id)
-    )''',
     '''\
     create table stars (
         id INTEGER PRIMARY KEY AUTOINCREMENT,
@@ -45,13 +37,13 @@ TABLES = [
         radius INTEGER,
         name TEXT UNIQUE
     )''',
-    ('''\
+    (
+        '''\
     create table planets (
         id INTEGER PRIMARY KEY,
         ordo INTEGER,'''  # The order from the star, counting from 1.
         # I use "ordo" instead of "order" because "order" is a keyword
         # in SQL (or at least it caused a syntax error in SQLite.)
-
         # These capacities are fixed and reflect the conditions on the
         # planet in a very abstract way.  Bio and Industry should be
         # low/high near and far from the star and high/low in the mid-
@@ -60,11 +52,19 @@ TABLES = [
         bio INTEGER DEFAULT 0,
         industrial_capacity INTEGER,
         industry INTEGER DEFAULT 0,
-     '''
+        star INTEGER,
-     '''star INTEGER,
         FOREIGN KEY(star) REFERENCES stars(id)
-    )'''),
+    )'''
-    ]
+    ),
+    '''\
+    create table populations (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        species TEXT,
+        pop INTEGER,
+        planet INTEGER,
+        FOREIGN KEY(planet) REFERENCES planets(id)
+    )''',
+]
 
 
 def initialize_db_tables(filename):

population.py

@@ -29,11 +29,13 @@ def init_db(conn):
 
     # Find the not-too-crappy planets.
     c = conn.cursor()
-    c.execute('''\
+    c.execute(
+        '''\
         select id, bio, industrial_capacity
         from planets
         where bio > 10000 and industrial_capacity > 10000
-        ''')
+        '''
+    )
     # Note that bio is initialized to full capacity whereas industry is 0.
 
     # Select some and set initial population and industry.
@@ -42,8 +44,14 @@ def init_db(conn):
         bio -= INITIAL_POP  # We know bio is above 10000 from the query above.
         ind = min(INITIAL_POP, industrial_capacity)
         people_name = get_name_of_planets_star(c, planet_id) + 'ians'
-        c.execute('update planets set bio = ?, industry = ? where id = ?', (bio, ind, planet_id))
+        c.execute(
-        c.execute('insert into populations(species, pop, planet) values (?, ?, ?)', (people_name, INITIAL_POP, planet_id))
+            'update planets set bio = ?, industry = ? where id = ?',
+            (bio, ind, planet_id),
+        )
+        c.execute(
+            'insert into populations(species, pop, planet) values (?, ?, ?)',
+            (people_name, INITIAL_POP, planet_id),
+        )
         print(planet_id, bio, industrial_capacity)
     c.close()
     conn.commit()
@@ -51,12 +59,13 @@ def init_db(conn):
 
 def get_name_of_planets_star(db_cursor, planet_id):
     # My first ever JOIN statement!  Squeeeee!
-    db_cursor.execute('''\
+    db_cursor.execute(
+        '''\
         select stars.name from stars
         join planets
         on stars.id = planets.star
         and planets.id = ?
         ''',
-        (planet_id,)
+        (planet_id,),
     )
     return db_cursor.fetchone()[0]

server.py

@@ -34,12 +34,15 @@ def turn():
 BIO_GROWTH = 0.03
 POP_GROWTH = 0.0125
 
+
 def life_grows(db_cursor):
     print('life_grows')
-    db_cursor.execute('''
+    db_cursor.execute(
+        '''
         select id, bio, bio_capacity from planets
         where bio > 0 and bio < bio_capacity
-        ''')
+        '''
+    )
     planets = list(db_cursor.fetchall())
     # Get all the results before updating some in this loop.
     for planet_id, bio, bio_capacity in planets:
@@ -58,17 +61,21 @@ def life_grows(db_cursor):
 
         bio = bio + new_bio
         assert bio <= bio_capacity
-        print(f'setting planet {planet_id} bio to {bio} increment of {new_bio}, excess_bio {excess_bio}')
+        print(
+            f'setting planet {planet_id} bio to {bio} increment of {new_bio}, excess_bio {excess_bio}'
+        )
         db_cursor.execute('update planets set bio = ? where id = ?', (bio, planet_id))
 
 
 def population_grows(db_cursor):
     print('population_grows')
-    db_cursor.execute('''
+    db_cursor.execute(
+        '''
         select populations.id, populations.pop, planets.id, planets.bio
         from populations join planets
         on populations.planet = planets.id
-        ''')
+        '''
+    )
     # and populations.home_star = planets.star
     # People are only legally allowed to reproduce in their home
     # stellar systems.
@@ -91,6 +98,7 @@ def population_grows(db_cursor):
 def industry_produces():
     print('industry_produces')
 
+
 def vessels_move():
     print('vessels_move')
 

stars.py

@@ -98,7 +98,7 @@ def get_planets_for_star_named(conn, name):
         ' where "star" = ?'
         ' order by ordo'
         ' limit 29',  # Because we only have 29 Roman numbers.
-        (star_id,)
+        (star_id,),
     )
     # Note that fetchone() returns a tuple value suitable for passing
     # to execute() as the values tuple.  I destructure the result tuple
@@ -138,7 +138,7 @@ def get_planets_for_star_named(conn, name):
 
 def generate_stars(width, height, minimum_distance_between_stars):
     unique_names = set()
-    for (x, y) in poisson(width, height, minimum_distance_between_stars):
+    for x, y in poisson(width, height, minimum_distance_between_stars):
         name = generate_name()
         while name in unique_names:
             name = generate_name()
@@ -168,7 +168,8 @@ def generate_planets_for_star(c):
     for ordo in range(1, how_many_planets() + 1):
         bio_capacity = round(lognormvariate(10, 5))
         bio = bio_capacity if has_life() else 0
-        c.execute('insert into planets'
+        c.execute(
+            'insert into planets'
             '(ordo, star, bio_capacity, bio, industrial_capacity)'
             ' values (?, ?, ?, ?, ?)',
             (
@@ -177,6 +178,5 @@ def generate_planets_for_star(c):
                 bio_capacity,
                 bio,
                 round(lognormvariate(10, 5)),
+            ),
         )
-                  )
-