* scripts/python/pybel.py, testpybel.py, pybelapi.html: Added a

.close() method to the Outputfile class of Pybel. This uses the
	CloseOutFile() method added by Chris Morley in r1606. This is
	necessary to ensure that all tests pass on Windows.

scripts/python/pybel.py

@@ -92,12 +92,19 @@ class Outputfile(object):
         Required parameters:
            molecule
         """
+	if not self.filename:
+            raise IOError, "Outputfile instance is closed."
+
         if self.total==0:
             self.obConversion.WriteFile(molecule.OBMol, self.filename)
         else:
             self.obConversion.Write(molecule.OBMol)
         self.total += 1
 
+    def close(self):
+        """Close the Outputfile to further writing."""
+        self.obConversion.CloseOutFile()
+        self.filename = None
 
 class Molecule(object):
     """Represent a Pybel molecule.

scripts/python/pybelapi.html

@@ -160,11 +160,14 @@ Optional&nbsp;parameters:<br>
 &nbsp;&nbsp;&nbsp;overwrite&nbsp;(default&nbsp;is&nbsp;False)&nbsp;--&nbsp;if&nbsp;the&nbsp;output&nbsp;file&nbsp;already&nbsp;exists,<br>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;should&nbsp;it&nbsp;be&nbsp;overwritten?<br>
 Methods:<br>
-&nbsp;&nbsp;&nbsp;<a href="#Outputfile-write">write</a>(molecule)<br>&nbsp;</tt></td></tr>
+&nbsp;&nbsp;&nbsp;<a href="#Outputfile-write">write</a>(molecule)<br>
+&nbsp;&nbsp;&nbsp;<a href="#Outputfile-close">close</a>()<br>&nbsp;</tt></td></tr>
 <tr><td>&nbsp;</td>
 <td width="100%">Methods defined here:<br>
 <dl><dt><a name="Outputfile-__init__"><strong>__init__</strong></a>(self, format, filename, overwrite<font color="#909090">=False</font>)</dt></dl>
 
+<dl><dt><a name="Outputfile-close"><strong>close</strong></a>(self)</dt><dd><tt>Close&nbsp;the&nbsp;<a href="#Outputfile">Outputfile</a>&nbsp;to&nbsp;further&nbsp;writing.</tt></dd></dl>
+
 <dl><dt><a name="Outputfile-write"><strong>write</strong></a>(self, molecule)</dt><dd><tt>Write&nbsp;a&nbsp;molecule&nbsp;to&nbsp;the&nbsp;output&nbsp;file.<br>
 &nbsp;<br>
 Required&nbsp;parameters:<br>

scripts/python/testpybel.py

@@ -96,6 +96,8 @@ class Test_readfile(unittest.TestCase):
         outputfile = pybel.Outputfile("smi", "testoutput.txt")
         for mol in self.mols:
             outputfile.write(mol)
+        outputfile.close()
+        self.assertRaises(IOError, outputfile.write, mol)
         self.assertRaises(IOError, pybel.Outputfile, "smi", "testoutput.txt")
         filecontents = open("testoutput.txt", "r").readlines()
         os.remove("testoutput.txt")