Fix starting the Qt console

IPython/core/inputsplitter.py

@@ -504,19 +504,22 b' class IPythonInputSplitter(InputSplitter):'
     # List with lines of raw input accumulated so far.
     _buffer_raw = None
 
-    def __init__(self, input_mode=None):
+    def __init__(self, input_mode=None, transforms=None):
         super(IPythonInputSplitter, self).__init__(input_mode)
         self._buffer_raw = []
         self._validate = True
-        self.transforms = [leading_indent(),
-                           classic_prompt(),
-                           ipy_prompt(),
-                           cellmagic(),
-                           help_end(),
-                           escaped_transformer(),
-                           assign_from_magic(),
-                           assign_from_system(),
-                          ]
+        if transforms is not None:
+            self.transforms = transforms
+        else:
+            self.transforms = [leading_indent(),
+                               classic_prompt(),
+                               ipy_prompt(),
+                               cellmagic(),
+                               help_end(),
+                               escaped_transformer(),
+                               assign_from_magic(),
+                               assign_from_system(),
+                              ]
 
     def reset(self):
         """Reset the input buffer and associated state."""

IPython/frontend/qt/console/frontend_widget.py

@@ -12,7 +12,8 b' from IPython.external import qt'
 from IPython.external.qt import QtCore, QtGui
 
 # Local imports
-from IPython.core.inputsplitter import InputSplitter, transform_classic_prompt
+from IPython.core.inputsplitter import InputSplitter, IPythonInputSplitter
+from IPython.core.inputtransformer import classic_prompt
 from IPython.core.oinspect import call_tip
 from IPython.frontend.qt.base_frontend_mixin import BaseFrontendMixin
 from IPython.utils.traitlets import Bool, Instance, Unicode
@@ -113,7 +114,7 b' class FrontendWidget(HistoryConsoleWidget, BaseFrontendMixin):'
     exit_requested = QtCore.Signal(object)
 
     # Protected class variables.
-    _transform_prompt = staticmethod(transform_classic_prompt)
+    _prompt_transformer = IPythonInputSplitter(transforms=[classic_prompt()])
     _CallTipRequest = namedtuple('_CallTipRequest', ['id', 'pos'])
     _CompletionRequest = namedtuple('_CompletionRequest', ['id', 'pos'])
     _ExecutionRequest = namedtuple('_ExecutionRequest', ['id', 'kind'])
@@ -186,8 +187,7 b' class FrontendWidget(HistoryConsoleWidget, BaseFrontendMixin):'
         elif self._control.hasFocus():
             text = self._control.textCursor().selection().toPlainText()
             if text:
-                lines = map(self._transform_prompt, text.splitlines())
-                text = '\n'.join(lines)
+                text = self._prompt_transformer.transform_cell(text)
                 QtGui.QApplication.clipboard().setText(text)
         else:
             self.log.debug("frontend widget : unknown copy target")

IPython/frontend/qt/console/ipython_widget.py

@@ -19,8 +19,8 b' from textwrap import dedent'
 from IPython.external.qt import QtCore, QtGui
 
 # Local imports
-from IPython.core.inputsplitter import IPythonInputSplitter, \
-    transform_ipy_prompt
+from IPython.core.inputsplitter import IPythonInputSplitter
+from IPython.core.inputtransformer import ipy_prompt
 from IPython.utils.traitlets import Bool, Unicode
 from frontend_widget import FrontendWidget
 import styles
@@ -98,7 +98,7 b' class IPythonWidget(FrontendWidget):'
 
     # FrontendWidget protected class variables.
     _input_splitter_class = IPythonInputSplitter
-    _transform_prompt = staticmethod(transform_ipy_prompt)
+    _prompt_transformer = IPythonInputSplitter(transforms=[ipy_prompt()])
 
     # IPythonWidget protected class variables.
     _PromptBlock = namedtuple('_PromptBlock', ['block', 'length', 'number'])