Updated docs for lxml requirement. #176

docs/source/changelog.rst

@@ -5,6 +5,7 @@ ChangeLog
 0.6.0 (pending)
 ===============
 
+      * Added lxml requirement.
       * added set_printoptions, get_printoptions function
       * dropped support for Python 2.6, added support for Python 3.4
       * dropped windows support

docs/source/detailed_installation.rst

@@ -68,8 +68,8 @@ For python 3.3, you should install the following set of ports:
 
       * python33
       * py33-numpy
+      * py33-lxml
       * py33-distribute
-      * py33-matplotlib (optional, for running certain tests)
       * py33-Pillow (optional, for running certain tests)
 
 MacPorts supplies both OpenJPEG 1.5.0 and OpenJPEG 2.0.0.
@@ -85,6 +85,7 @@ packages may also need to be installed.  Consult your package manager
 documentation or use pip.
 
       * setuptools
+      * python-lxml
       * matplotlib
       * pillow
       * contextlib2 (2.7 only)

docs/source/how_do_i.rst

@@ -131,7 +131,6 @@ From within Python, it is as simple as printing the Jp2k object, i.e. ::
             </rdf:Description>
           </rdf:RDF>
         </ns0:xmpmeta>
-        
     Contiguous Codestream Box (jp2c) @ (3223, 1132296)
         Main header:
             SOC marker segment @ (3231, 0)
@@ -228,7 +227,6 @@ The :py:meth:`append` method can add an XML box as shown below::
     >>> import shutil
     >>> import glymur
     >>> shutil.copyfile(glymur.data.nemo(), 'myfile.jp2')
-    >>> from xml.etree import cElementTree as ET
     >>> jp2 = glymur.Jp2k('myfile.jp2')
     >>> xmlbox = glymur.jp2box.XMLBox(filename='data.xml')
     >>> jp2.append(xmlbox)
@@ -408,12 +406,12 @@ The example JP2 file shipped with glymur has an XMP UUID. ::
           .
     </ns0:xmpmeta>
 
-Since the UUID data in this case is returned as an ElementTree instance,
+Since the UUID data in this case is returned as an lxml ElementTree
-one can use ElementTree from the standard library to access the data.
+instance, one can use lxml to access the data.  For example, to
-For example, to extract the **CreatorTool** attribute value, one could do the
+extract the **CreatorTool** attribute value, one could do the
 following
 
-    >>> xmp = j.box[3].data.packet
+    >>> xmp = j.box[3].data
     >>> rdf = '{http://www.w3.org/1999/02/22-rdf-syntax-ns#}'
     >>> ns2 = '{http://ns.adobe.com/xap/1.0/}'
     >>> name = '{0}RDF/{0}Description/{1}CreatorTool'.format(rdf, ns2)