ipython qtconsole (v0.11): setting "c.IPythonWidget.in_prompt = '>>> ' crashes

[phn]

In profile_default/ipython_qtconsole_config.py the following causes iPython to crash

  # c.IPythonWidget.in_prompt = 'In [<span class="in-prompt-number">%i</span>]: '
  c.IPythonWidget.in_prompt = ">>> "

The Crash_report_ipython.txt file contents is given below:

---

IPython post-mortem report

{'commit_hash': '',
'commit_source': '(none found)',
'ipython_path': '/home/phn/lib/pyvirtualenv/astro_stsci/lib/python2.6/site-packages/IPython',
'ipython_version': '0.11',
'os_name': 'posix',
'platform': 'Linux-2.6.38-10-generic-pae-i686-with-Ubuntu-11.04-natty',
'sys_executable': '/home/phn/lib/pyvirtualenv/astro_stsci/bin/python',
'sys_platform': 'linux2',
'sys_version': '2.6.6 (r266:84292, Sep 15 2010, 15:52:39) \n[GCC 4.4.5]'}

---

---

Crash traceback:

---

TypeError Python 2.6.6: /home/phn/lib/pyvirtualenv/astro_stsci/bin/python
Mon Aug 1 11:28:27 2011
A problem occured executing Python code. Here is the sequence of function
calls leading up to the error, with the most recent (innermost) call last.
/home/phn/lib/pyvirtualenv/astro_stsci/lib/python2.6/site-packages/IPython/frontend/qt/base_frontend_mixin.pyc in _dispatch(self=<IPython.frontend.qt.console.rich_ipython_widget.RichIPythonWidget object>, msg={'buffers': [], 'content': {'execution_count': 0, 'payload': [], 'status': 'ok', 'user_expressions': {}, 'user_variables': {}}, 'header': {'date': datetime.datetime(2011, 8, 1, 11, 28, 27, 269158), 'msg_id': '4accc4c2-a340-4606-be65-6a30e55c830a', 'msg_type': 'execute_reply', 'session': '1f477c57-a79f-413b-adc0-2b102267c1e6', 'username': 'kernel'}, 'msg_type': 'execute_reply', 'parent_header': {'date': datetime.datetime(2011, 8, 1, 11, 28, 27, 138046), 'msg_id': 'fd17c9e1-738a-459a-b99f-ef7bc54ddab7', 'msg_type': 'execute_request', 'session': '460d5ec9-7ca9-4d22-a1f5-c54aeff335df', 'username': 'phn'}})
87 """ Called when the KernelManager channels have stopped listening or
88 when a listening KernelManager is removed from the frontend.
89 """
90
91 #---------------------------------------------------------------------------
92 # 'BaseFrontendMixin' protected interface
93 #---------------------------------------------------------------------------
94
95 def _dispatch(self, msg):
96 """ Calls the frontend handler associated with the message type of the
97 given message.
98 """
99 msg_type = msg['msg_type']
100 handler = getattr(self, 'handle' + msg_type, None)
101 if handler:
--> 102 handler(msg)
103
104 def _is_from_this_session(self, msg):
105 """ Returns whether a reply from the kernel originated from a request
106 from this frontend.
107 """
108 session = self._kernel_manager.session.session
109 return msg['parent_header']['session'] == session

/home/phn/lib/pyvirtualenv/astro_stsci/lib/python2.6/site-packages/IPython/frontend/qt/console/ipython_widget.pyc in _handle_execute_reply(self=<IPython.frontend.qt.console.rich_ipython_widget.RichIPythonWidget object>, msg={'buffers': [], 'content': {'execution_count': 0, 'payload': [], 'status': 'ok', 'user_expressions': {}, 'user_variables': {}}, 'header': {'date': datetime.datetime(2011, 8, 1, 11, 28, 27, 269158), 'msg_id': '4accc4c2-a340-4606-be65-6a30e55c830a', 'msg_type': 'execute_reply', 'session': '1f477c57-a79f-413b-adc0-2b102267c1e6', 'username': 'kernel'}, 'msg_type': 'execute_reply', 'parent_header': {'date': datetime.datetime(2011, 8, 1, 11, 28, 27, 138046), 'msg_id': 'fd17c9e1-738a-459a-b99f-ef7bc54ddab7', 'msg_type': 'execute_request', 'session': '460d5ec9-7ca9-4d22-a1f5-c54aeff335df', 'username': 'phn'}})
155 chop_length = sum(map(len, parts[:sep_count])) + sep_count
156 matches = [ match[chop_length:] for match in matches ]
157 offset -= chop_length
158
159 # Move the cursor to the start of the match and complete.
160 cursor.movePosition(QtGui.QTextCursor.Left, n=offset)
161 self._complete_with_items(cursor, matches)
162
163 def _handle_execute_reply(self, msg):
164 """ Reimplemented to support prompt requests.
165 """
166 info = self._request_info.get('execute')
167 if info and info.id == msg['parent_header']['msg_id']:
168 if info.kind == 'prompt':
169 number = msg['content']['execution_count'] + 1
--> 170 self._show_interpreter_prompt(number)
171 else:
172 super(IPythonWidget, self)._handle_execute_reply(msg)
173
174 def _handle_history_reply(self, msg):
175 """ Implemented to handle history tail replies, which are only supported
176 by the IPython kernel.
177 """
178 history_items = msg['content']['history']
179 items = [ line.rstrip() for _, _, line in history_items ]
180 self._set_history(items)
181
182 def _handle_pyout(self, msg):
183 """ Reimplemented for IPython-style "display hook".
184 """
185 if not self._hidden and self._is_from_this_session(msg):

/home/phn/lib/pyvirtualenv/astro_stsci/lib/python2.6/site-packages/IPython/frontend/qt/console/ipython_widget.pyc in _show_interpreter_prompt(self=<IPython.frontend.qt.console.rich_ipython_widget.RichIPythonWidget object>, number=1)
316 return True
317
318 def _show_interpreter_prompt(self, number=None):
319 """ Reimplemented for IPython-style prompts.
320 """
321 # If a number was not specified, make a prompt number request.
322 if number is None:
323 msg_id = self.kernel_manager.shell_channel.execute('', silent=True)
324 info = self._ExecutionRequest(msg_id, 'prompt')
325 self._request_info['execute'] = info
326 return
327
328 # Show a new prompt and save information about it so that it can be
329 # updated later if the prompt number turns out to be wrong.
330 self._prompt_sep = self.input_sep
--> 331 self._show_prompt(self._make_in_prompt(number), html=True)
332 block = self._control.document().lastBlock()
333 length = len(self._prompt)
334 self._previous_prompt_obj = self._PromptBlock(block, length, number)
335
336 # Update continuation prompt to reflect (possibly) new prompt length.
337 self._set_continuation_prompt(
338 self._make_continuation_prompt(self._prompt), html=True)
339
340 def _show_interpreter_prompt_for_reply(self, msg):
341 """ Reimplemented for IPython-style prompts.
342 """
343 # Update the old prompt number if necessary.
344 content = msg['content']
345 previous_prompt_number = content['execution_count']
346 if self._previous_prompt_obj and \

/home/phn/lib/pyvirtualenv/astro_stsci/lib/python2.6/site-packages/IPython/frontend/qt/console/ipython_widget.pyc in _make_in_prompt(self=<IPython.frontend.qt.console.rich_ipython_widget.RichIPythonWidget object>, number=1)
428 command = self.editor.format(filename=filename)
429 else:
430 command += ' ' + filename
431 except KeyError:
432 self._append_plain_text('Invalid editor command.\n')
433 else:
434 try:
435 Popen(command, shell=True)
436 except OSError:
437 msg = 'Opening editor with command "%s" failed.\n'
438 self._append_plain_text(msg % command)
439
440 def _make_in_prompt(self, number):
441 """ Given a prompt number, returns an HTML In prompt.
442 """
--> 443 body = self.in_prompt % number
444 return '%s' % body
445
446 def _make_continuation_prompt(self, prompt):
447 """ Given a plain text version of an In prompt, returns an HTML
448 continuation prompt.
449 """
450 end_chars = '...: '
451 space_count = len(prompt.lstrip('\n')) - len(end_chars)
452 body = ' ' * space_count + end_chars
453 return '%s' % body
454
455 def _make_out_prompt(self, number):
456 """ Given a prompt number, returns an HTML Out prompt.
457 """
458 body = self.out_prompt % number

TypeError: not all arguments converted during string formatting

---

History of session input:

[takluyver]

N.B. Prompt generation is being refactored for 0.12 - see PR #507.

[minrk]

closed by 9843479