Implemented %loadpy magic for loading .py scripts into Qt console.

IPython/frontend/qt/console/ipython_widget.py

@@ -14,6 +14,7
 from collections import namedtuple
 import re
 from subprocess import Popen
+from textwrap import dedent
 
 # System library imports
 from PyQt4 import QtCore, QtGui
@@ -109,6 +110,7 class IPythonWidget(FrontendWidget):
     _payload_source_edit = 'IPython.zmq.zmqshell.ZMQInteractiveShell.edit_magic'
     _payload_source_exit = 'IPython.zmq.zmqshell.ZMQInteractiveShell.ask_exit'
     _payload_source_page = 'IPython.zmq.page.page'
+    _payload_source_loadpy = 'IPython.zmq.zmqshell.ZMQInteractiveShell.magic_loadpy'
 
     #---------------------------------------------------------------------------
     # 'object' interface
@@ -121,8 +123,10 class IPythonWidget(FrontendWidget):
         self._payload_handlers = { 
             self._payload_source_edit : self._handle_payload_edit,
             self._payload_source_exit : self._handle_payload_exit,
-            self._payload_source_page : self._handle_payload_page }
+            self._payload_source_page : self._handle_payload_page,
+            self._payload_source_loadpy : self._handle_payload_loadpy }
         self._previous_prompt_obj = None
+        self._code_to_load = None
 
         # Initialize widget styling.
         if self.style_sheet:
@@ -302,6 +306,11 class IPythonWidget(FrontendWidget):
         self._set_continuation_prompt(
             self._make_continuation_prompt(self._prompt), html=True)
 
+        if self._code_to_load is not None:
+            text = unicode(self._code_to_load).rstrip()
+            self._insert_plain_text_into_buffer(dedent(text))
+            self._code_to_load = None
+
     def _show_interpreter_prompt_for_reply(self, msg):
         """ Reimplemented for IPython-style prompts.
         """
@@ -436,6 +445,11 class IPythonWidget(FrontendWidget):
         else:
             self._page(item['text'], html=False)
 
+    def _handle_payload_loadpy(self, item):
+        # Simple save the text of the .py file for later. The text is written
+        # to the buffer when _prompt_started_hook is called.
+        self._code_to_load = item['text']
+
     #------ Trait change handlers ---------------------------------------------
 
     def _style_sheet_changed(self):

IPython/zmq/zmqshell.py

@@ -542,5 +542,26 class ZMQInteractiveShell(InteractiveShell):
         from IPython.core.usage import gui_reference
         page.page(gui_reference, auto_html=True)
 
+    def magic_loadpy(self, arg_s):
+        """Load a .py python script into the GUI console.
+
+        This magic command can either take a local filename or a url::
+
+        %loadpy myscript.py
+        %loadpy http://www.example.com/myscript.py
+        """
+        if not arg_s.endswith('.py'):
+            raise ValueError('%%load only works with .py files: %s' % arg_s)
+        if arg_s.startswith('http'):
+            import urllib2
+            response = urllib2.urlopen(arg_s)
+            content = response.read()
+        else:
+            content = open(arg_s).read()
+        payload = dict(
+            source='IPython.zmq.zmqshell.ZMQInteractiveShell.magic_loadpy', 
+            text=content
+        )
+        self.payload_manager.write_payload(payload)
 
 InteractiveShellABC.register(ZMQInteractiveShell)