diff --git a/README.md b/README.md
index 4adde82..c74b1bd 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ Features
 How to Install
 --------------
 
- * Install Python 2.6 or newer. (**Python 3 is not supported.**)
+ * Install Python 2.6 or newer. (**For Python 3 support have a look at [pdfminer.six](https://github.com/goulu/pdfminer)**).
  * Download the source code.
  * Unpack it.
  * Run `setup.py`:
diff --git a/pdfminer/latin_enc.py b/pdfminer/latin_enc.py
index 41d219c..52dadc1 100644
--- a/pdfminer/latin_enc.py
+++ b/pdfminer/latin_enc.py
@@ -162,6 +162,7 @@ ENCODING = [
   ('mu', None, 181, 181, 181),
   ('multiply', None, None, 215, 215),
   ('n', 110, 110, 110, 110),
+  ('nbspace',  None, 202, 160, None),
   ('nine', 57, 57, 57, 57),
   ('ntilde', None, 150, 241, 241),
   ('numbersign', 35, 35, 35, 35),
diff --git a/pdfminer/utils.py b/pdfminer/utils.py
index b53c1c1..307c5e7 100644
--- a/pdfminer/utils.py
+++ b/pdfminer/utils.py
@@ -11,7 +11,7 @@ from sys import maxint as INF
 def apply_png_predictor(pred, colors, columns, bitspercomponent, data):
     if bitspercomponent != 8:
         # unsupported
-        raise ValueError(bitspercomponent)
+        raise ValueError("Unsupported `bitspercomponent': %d"%bitspercomponent)
     nbytes = colors*columns*bitspercomponent//8
     i = 0
     buf = b''
@@ -43,7 +43,7 @@ def apply_png_predictor(pred, colors, columns, bitspercomponent, data):
                 line2 += chr(c)
         else:
             # unsupported
-            raise ValueError(ft)
+            raise ValueError("Unsupported predictor value: %d"%ft)
         buf += line2
         line0 = line2
     return buf
diff --git a/setup.py b/setup.py
index c9962fe..51779e7 100644
--- a/setup.py
+++ b/setup.py
@@ -18,6 +18,9 @@ PDF parser that can be used for other purposes instead of text analysis.''',
     author='Yusuke Shinyama',
     author_email='yusuke at cs dot nyu dot edu',
     url='http://euske.github.io/pdfminer/index.html',
+    install_requires=[
+    'pycrypto',
+    ],
     packages=[
     'pdfminer',
     ],