Python 3 support.

setup.py

@@ -1,29 +1,35 @@
 
 import sys, os, shutil, glob
-
+sys.argv.append('build')
 
 # Some Angstrom images are missing the py_compile module; get it if not
 # present:
 import random
 python_lib_path = random.__file__.split('random')[0]
 if not os.path.exists(python_lib_path + 'py_compile.py'):
-  print "py_compile module missing; installing to %spy_compile.py" %\
-        python_lib_path
-  import urllib2
-  url = "http://hg.python.org/cpython/raw-file/4ebe1ede981e/Lib/py_compile.py"
-  py_compile = urllib2.urlopen(url)
-  with open(python_lib_path+'py_compile.py', 'w') as f:
-    f.write(py_compile.read())
-  print "testing py_compile..."
+  print("py_compile module missing; installing to %spy_compile.py" %\
+          python_lib_path)
   try:
     import py_compile
-    print "py_compile installed successfully"
-  except Exception, e:
-    print "*py_compile install failed, could not import"
-    print "*Exception raised:"
-    raise e
+  except ImportError:
+    try:
+        import urllib.request as urllib2
+    except ImportError:
+        import urllib2
+    url = "http://hg.python.org/cpython/raw-file/4ebe1ede981e/Lib/py_compile.py"
+    py_compile = urllib2.urlopen(url)
+    with open(python_lib_path+'py_compile.py', 'wb') as f:
+      f.write(py_compile.read())
+    print("testing py_compile...")
+    try:
+      import py_compile
+      print("py_compile installed successfully")
+    except Exception as e:
+      print("*py_compile install failed, could not import")
+      print("*Exception raised:")
+      raise e
 
-print "Installing PyBBIO..." 
+print("Installing PyBBIO...")
 
 from setuptools import setup, Extension, find_packages