Add pfile command to ipdb.

IPython/core/debugger.py

@@ -492,6 +492,15 b' class Pdb(OldPdb):'
                       ('Globals', self.curframe.f_globals)]
         self.shell.find_line_magic('pdoc')(arg, namespaces=namespaces)
 
+    def do_pfile(self, arg):
+        """Print (or run through pager) the file where an object is defined.
+
+        The debugger interface to %pfile.
+        """
+        namespaces = [('Locals', self.curframe.f_locals),
+                      ('Globals', self.curframe.f_globals)]
+        self.shell.find_line_magic('pfile')(arg, namespaces=namespaces)
+
     def do_pinfo(self, arg):
         """Provide detailed information about an object.
 

IPython/core/magics/namespace.py

@@ -98,7 +98,7 b' class NamespaceMagics(Magics):'
         self.shell._inspect('psource',parameter_s, namespaces)
 
     @line_magic
-    def pfile(self, parameter_s=''):
+    def pfile(self, parameter_s='', namespaces=None):
         """Print (or run through pager) the file where an object is defined.
 
         The file opens at the line where the object definition begins. IPython
@@ -111,7 +111,7 b' class NamespaceMagics(Magics):'
         viewer."""
 
         # first interpret argument as an object name
-        out = self.shell._inspect('pfile',parameter_s)
+        out = self.shell._inspect('pfile',parameter_s, namespaces)
         # if not, try the input as a filename
         if out == 'not found':
             try: