Change indent from 4 to 2

cookbook.py

@@ -4,48 +4,48 @@
 import yaml
 
 class Cookbook(object):
-    """Holds the components of a world, and rules on how to create stuff."""
-    def __init__(self, recipes_path):
-        with open(recipes_path) as recipes_f:
-            recipes = yaml.load(recipes_f)
-        self.index = Index()
-        self.environment = set(self.index.index(e) for e in recipes["environment"])
-        self.primitives = set(self.index.index(p) for p in recipes["primitives"])
-        self.recipes = {}
-        for output, inputs in recipes["recipes"].items():
-            d = {}
-            for inp, count in inputs.items():
-                # special keys
-                if "_" in inp:
-                    d[inp] = count
-                else:
-                    d[self.index.index(inp)] = count
-            self.recipes[self.index.index(output)] = d
-        self.kinds = self.environment | self.primitives | set(self.recipes.keys())
-        self.n_kinds = len(self.index)
+  """Holds the components of a world, and rules on how to create stuff."""
+  def __init__(self, recipes_path):
+    with open(recipes_path) as recipes_f:
+      recipes = yaml.load(recipes_f)
+    self.index = Index()
+    self.environment = set(self.index.index(e) for e in recipes["environment"])
+    self.primitives = set(self.index.index(p) for p in recipes["primitives"])
+    self.recipes = {}
+    for output, inputs in recipes["recipes"].items():
+      d = {}
+      for inp, count in inputs.items():
+        # special keys
+        if "_" in inp:
+          d[inp] = count
+        else:
+          d[self.index.index(inp)] = count
+      self.recipes[self.index.index(output)] = d
+    self.kinds = self.environment | self.primitives | set(self.recipes.keys())
+    self.n_kinds = len(self.index)
 
-    def primitives_for(self, goal):
-        out = {}
+  def primitives_for(self, goal):
+    out = {}
 
-        def insert(kind, count):
-            assert kind in self.primitives
-            if kind not in out:
-                out[kind] = count
-            else:
-                out[kind] += count
+    def insert(kind, count):
+      assert kind in self.primitives
+      if kind not in out:
+        out[kind] = count
+      else:
+        out[kind] += count
 
-        for ingredient, count in self.recipes[goal].items():
-            if not isinstance(ingredient, int):
-                assert ingredient[0] == "_"
-                continue
-            elif ingredient in self.primitives:
-                insert(ingredient, count)
-            else:
-                sub_recipe = self.recipes[ingredient]
-                n_produce = sub_recipe["_yield"] if "_yield" in sub_recipe else 1
-                n_needed = int(np.ceil(1. * count / n_produce))
-                expanded = self.primitives_for(ingredient)
-                for k, v in expanded.items():
-                    insert(k, v * n_needed)
+    for ingredient, count in self.recipes[goal].items():
+      if not isinstance(ingredient, int):
+        assert ingredient[0] == "_"
+        continue
+      elif ingredient in self.primitives:
+        insert(ingredient, count)
+      else:
+        sub_recipe = self.recipes[ingredient]
+        n_produce = sub_recipe["_yield"] if "_yield" in sub_recipe else 1
+        n_needed = int(np.ceil(1. * count / n_produce))
+        expanded = self.primitives_for(ingredient)
+        for k, v in expanded.items():
+          insert(k, v * n_needed)
 
-        return out
+    return out