Fix to show encoding-cookie in %pfile

IPython/core/magics/namespace.py

@@ -119,7 +119,7 b' class NamespaceMagics(Magics):'
             except IOError as msg:
                 print msg
                 return
-            page.page(self.shell.pycolorize(read_py_file(filename)))
+            page.page(self.shell.pycolorize(read_py_file(filename, skip_encoding_cookie=False)))
 
     @line_magic
     def psearch(self, parameter_s=''):