Merge branch 'exit-autocall'

IPython/core/autocall.py

@@ -7,6 +7,7 b' Authors:'
 
 * Brian Granger
 * Fernando Perez
+* Thomas Kluyver
 
 Notes
 -----
@@ -34,6 +35,10 b' class IPyAutocall(object):'
     This happens regardless of 'autocall' variable state. Use this to
     develop macro-like mechanisms.
     """
+    _ip = None
+    rewrite = True
+    def __init__(self, ip=None):
+        self._ip = ip
     
     def set_ip(self,ip):
         """ Will be used to set _ip point to current ipython instance b/f call
@@ -43,3 +48,24 b' class IPyAutocall(object):'
         """
         self._ip = ip
 
+
+class ExitAutocall(IPyAutocall):
+    """An autocallable object which will be added to the user namespace so that
+    exit, exit(), quit or quit() are all valid ways to close the shell."""
+    rewrite = False
+    
+    def __call__(self):
+        self._ip.ask_exit()
+        
+class ZMQExitAutocall(ExitAutocall):
+    """Exit IPython. Autocallable, so it needn't be explicitly called.
+    
+    Parameters
+    ----------
+    keep_kernel : bool
+      If True, leave the kernel alive. Otherwise, tell the kernel to exit too
+      (default).
+    """
+    def __call__(self, keep_kernel=False):
+        self._ip.keepkernel_on_exit = keep_kernel
+        self._ip.ask_exit()

IPython/core/interactiveshell.py

@@ -39,6 +39,7 b' from IPython.core import prefilter'
 from IPython.core import shadowns
 from IPython.core import ultratb
 from IPython.core.alias import AliasManager
+from IPython.core.autocall import ExitAutocall
 from IPython.core.builtin_trap import BuiltinTrap
 from IPython.core.compilerop import CachingCompiler
 from IPython.core.display_trap import DisplayTrap
@@ -198,6 +199,9 b' class InteractiveShell(Configurable, Magic):'
     display_pub_class = Type(DisplayPublisher)
 
     exit_now = CBool(False)
+    exiter = Instance(ExitAutocall)
+    def _exiter_default(self):
+        return ExitAutocall(self)
     # Monotonically increasing execution counter
     execution_count = Int(1)
     filename = Unicode("<ipython console>")
@@ -1024,6 +1028,9 b' class InteractiveShell(Configurable, Magic):'
         # Store myself as the public api!!!
         ns['get_ipython'] = self.get_ipython
 
+        ns['exit'] = self.exiter
+        ns['quit'] = self.exiter
+
         # Sync what we've added so far to user_ns_hidden so these aren't seen
         # by %who
         self.user_ns_hidden.update(ns)

IPython/core/magic.py

@@ -2504,14 +2504,6 b' Defaulting color scheme to \'NoColor\'"""'
         print 'Pretty printing has been turned', \
               ['OFF','ON'][ptformatter.pprint]
                 
-    def magic_Exit(self, parameter_s=''):
-        """Exit IPython."""
-
-        self.shell.ask_exit()
-
-    # Add aliases as magics so all common forms work: exit, quit, Exit, Quit.
-    magic_exit = magic_quit = magic_Quit = magic_Exit
-
     #......................................................................
     # Functions to implement unix shell-type things
 

IPython/core/prefilter.py

@@ -894,7 +894,7 b' class AutoHandler(PrefilterHandler):'
             return line
 
         force_auto = isinstance(obj, IPyAutocall)
-        auto_rewrite = True
+        auto_rewrite = getattr(obj, 'rewrite', True)
         
         if pre == ESC_QUOTE:
             # Auto-quote splitting on whitespace

IPython/lib/tests/test_irunner.py

@@ -77,7 +77,7 b' for i in range(5):'
 
 print "that's all folks!"
 
-%Exit
+exit
 """
         output = """\
 In [1]: print 'hello, this is python'
@@ -124,7 +124,7 b' In [11]: print "that\'s all folks!"'
 that's all folks!
 
 
-In [12]: %Exit
+In [12]: exit
 """
         runner = irunner.IPythonRunner(out=self.out)
         self._test_runner(runner,source,output)

IPython/zmq/zmqshell.py

@@ -24,6 +24,7 b' from IPython.core.interactiveshell import ('
     InteractiveShell, InteractiveShellABC
 )
 from IPython.core import page
+from IPython.core.autocall import ZMQExitAutocall
 from IPython.core.displayhook import DisplayHook
 from IPython.core.displaypub import DisplayPublisher
 from IPython.core.macro import Macro
@@ -105,6 +106,10 b' class ZMQInteractiveShell(InteractiveShell):'
     displayhook_class = Type(ZMQDisplayHook)
     display_pub_class = Type(ZMQDisplayPublisher)
 
+    exiter = Instance(ZMQExitAutocall)
+    def _exiter_default(self):
+        return ZMQExitAutocall(self)
+
     keepkernel_on_exit = None
 
     def init_environment(self):
@@ -593,15 +598,4 b' class ZMQInteractiveShell(InteractiveShell):'
         )
         self.payload_manager.write_payload(payload)
         
-    def magic_Exit(self, parameter_s=''):
-        """Exit IPython. If the -k option is provided, the kernel will be left
-        running. Otherwise, it will shutdown without prompting.
-        """
-        opts,args = self.parse_options(parameter_s,'k')
-        self.shell.keepkernel_on_exit = opts.has_key('k')
-        self.shell.ask_exit()
-
-    # Add aliases as magics so all common forms work: exit, quit, Exit, Quit.
-    magic_exit = magic_quit = magic_Quit = magic_Exit
-
 InteractiveShellABC.register(ZMQInteractiveShell)