From 705d0249931d5ec65e8dc80d468c9febd57a1589 Mon Sep 17 00:00:00 2001
From: moto <mthrok@gmail.com>
Date: Mon, 9 May 2016 17:59:55 -0700
Subject: [PATCH] Feature/len (#68)

* Add __len__ to discrete

* Add __len__ to tuple
---
 gym/spaces/discrete.py    | 2 ++
 gym/spaces/tuple_space.py | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/gym/spaces/discrete.py b/gym/spaces/discrete.py
index f3b3fa372..e0b4cfd89 100644
--- a/gym/spaces/discrete.py
+++ b/gym/spaces/discrete.py
@@ -21,3 +21,5 @@ class Discrete(Space):
         return "Discrete(%d)" % self.n
     def __eq__(self, other):
         return self.n == other.n
+    def __len__(self):
+        return  n
diff --git a/gym/spaces/tuple_space.py b/gym/spaces/tuple_space.py
index e0f392878..03ef73189 100644
--- a/gym/spaces/tuple_space.py
+++ b/gym/spaces/tuple_space.py
@@ -7,6 +7,9 @@ class Tuple(Space):
     def __init__(self, spaces):
         self.spaces = spaces
 
+    def __len__(self):
+        return len(self.spaces)
+
     def sample(self):
         return tuple([space.sample() for space in self.spaces])