add ipy_extutil.py

IPython/Extensions/ipy_extutil.py

@@ -0,0 +1,43 b''
+""" IPython extension management tools.
+
+After installation, you'll have the 'extutil' object in your namespace.
+to.
+"""
+
+# for the purposes of this module, every module that has the name 'ip' globally
+# installed as below is an IPython extension
+
+import IPython.ipapi
+ip = IPython.ipapi.get()
+
+import sys,textwrap,inspect
+
+def indent(s, ind= '    '):
+    return '\n'.join([ind +l for l in s.splitlines()])
+
+class ExtUtil:
+    """ IPython extensios (ipy_* etc.) management utilities """
+    
+    def describe(self):
+        for n,mod in self._active():
+            doc = inspect.getdoc(mod)
+            if doc:
+                print '== %s ==' % n
+                print indent(doc)
+            
+            
+    def ls(self):
+        """ Show list of installed extensions. """
+        for n,m in self._active():
+            print '%-20s %s' % (n,m.__file__.replace('\\','/'))
+    def _active(self):
+        act = []
+        for mname,m in sys.modules.items():
+            o = getattr(m, 'ip', None)
+            if isinstance(o, IPython.ipapi.IPApi):
+                act.append((mname,m))
+        act.sort()                
+        return act
+
+extutil = ExtUtil()                
+ip.to_user_ns('extutil')

doc/ChangeLog

@@ -1,3 +1,8 b''
[phone]  Ville Vainio  <[e-mail]>
+
+	* Extensions/ipy_extutil.py: added extension to manage other ipython
+	extensions. Now only supports 'ls' == list extensions.
+
 2007-04-20  Fernando Perez  <[e-mail]>
 
 	* IPython/Debugger.py (BdbQuit_excepthook): fix small bug that