Fix to %pfile to ensure unicode handling

Use read_py_file to get python source in unicode format.

IPython/core/magics/namespace.py

@@ -23,6 +23,7 b' from IPython.core.error import StdinNotImplementedError, UsageError'
 from IPython.core.magic import Magics, magics_class, line_magic
 from IPython.testing.skipdoctest import skip_doctest
 from IPython.utils.encoding import DEFAULT_ENCODING
+from IPython.utils.openpy import read_py_file
 from IPython.utils.path import get_py_filename
 
 #-----------------------------------------------------------------------------
@@ -118,7 +119,7 b' class NamespaceMagics(Magics):'
             except IOError as msg:
                 print msg
                 return
-            page.page(self.shell.inspector.format(open(filename).read()))
+            page.page(self.shell.pycolorize(read_py_file(filename)))
 
     @line_magic
     def psearch(self, parameter_s=''):