Fix missing render()

Author: Sanyam Kapoor

TD/Cliff Environment Playground.ipynb

@@ -3,9 +3,7 @@
   {
    "cell_type": "code",
    "execution_count": 1,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "import gym\n",
@@ -21,9 +19,7 @@
   {
    "cell_type": "code",
    "execution_count": 2,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "name": "stdout",
@@ -80,6 +76,13 @@
     "print(env.step(2))\n",
     "env.render()"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
@@ -98,9 +101,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.5.1"
+   "version": "3.6.4"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 0
+ "nbformat_minor": 1
 }

TD/Windy Gridworld Playground.ipynb

@@ -2,10 +2,8 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 2,
-   "metadata": {
-    "collapsed": false
-   },
+   "execution_count": 1,
+   "metadata": {},
    "outputs": [],
    "source": [
     "import gym\n",
@@ -20,10 +18,8 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
-   "metadata": {
-    "collapsed": false
-   },
+   "execution_count": 2,
+   "metadata": {},
    "outputs": [
     {
      "name": "stdout",
@@ -119,6 +115,13 @@
     "print(env.step(1))\n",
     "env.render()"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
@@ -137,9 +140,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.5.1"
+   "version": "3.6.4"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 0
+ "nbformat_minor": 1
 }

lib/envs/cliff_walking.py

@@ -53,6 +53,9 @@ def __init__(self):
 
         super(CliffWalkingEnv, self).__init__(nS, nA, P, isd)
 
+    def render(self, mode='human', close=False):
+        self._render(mode, close)
+
     def _render(self, mode='human', close=False):
         if close:
             return
@@ -78,4 +81,4 @@ def _render(self, mode='human', close=False):
                 output += "\n"
 
             outfile.write(output)
-        outfile.write("\n")
+        outfile.write("\n")

lib/envs/windy_gridworld.py

@@ -53,6 +53,9 @@ def __init__(self):
 
         super(WindyGridworldEnv, self).__init__(nS, nA, P, isd)
 
+    def render(self, mode='human', close=False):
+        self._render(mode, close)
+
     def _render(self, mode='human', close=False):
         if close:
             return
@@ -76,4 +79,4 @@ def _render(self, mode='human', close=False):
                 output += "\n"
 
             outfile.write(output)
-        outfile.write("\n")
+        outfile.write("\n")