Fixed another bug related to missing dependencies in tests.

IPython/frontend/asyncfrontendbase.py

@@ -16,28 +16,12 b' __docformat__ = "restructuredtext en"'
 #-------------------------------------------------------------------------------
 import uuid
 
-try:
-    from zope.interface import Interface, Attribute, implements, classProvides
-except ImportError, e:
-    e.message = """%s
-________________________________________________________________________________
-zope.interface is required to run asynchronous frontends.""" % e.message
-    e.args = (e.message, ) + e.args[1:]
-
-from frontendbase import FrontEndBase, IFrontEnd, IFrontEndFactory
 
+from zope.interface import Interface, Attribute, implements, classProvides
+from twisted.python.failure import Failure
+from IPython.frontend.frontendbase import FrontEndBase, IFrontEnd, IFrontEndFactory
 from IPython.kernel.core.history import FrontEndHistory
-
-try:
     from IPython.kernel.engineservice import IEngineCore
-    from twisted.python.failure import Failure
-except ImportError, e:
-    e.message = """%s
-________________________________________________________________________________
-twisted is required to run asynchronous frontends.""" % e.message
-    e.args = (e.message, ) + e.args[1:]
-
-
 
 
 class AsyncFrontEndBase(FrontEndBase):

IPython/frontend/frontendbase.py

@@ -24,8 +24,12 b' import string'
 import uuid
 import _ast
 
-from zopeinterface import Interface, Attribute, implements, classProvides
-
+from IPython.frontend.zopeinterface import (
+    Interface, 
+    Attribute, 
+    implements, 
+    classProvides
+)
 from IPython.kernel.core.history import FrontEndHistory
 from IPython.kernel.core.util import Bunch
 

docs/source/development/development.txt

@@ -358,24 +358,14 b' Installation scenarios'
 ----------------------
 
     1.  Install from tarball using `python setup.py install`.
-        a.  With only readline+nose dependencies installed (test1)
-        
-        virtualenv --no-site-packages test1
-        # Activate it
-        easy_install nose
-        easy_install readline # On OS X or pyreadline on win32
-        cd ipython-0.9.beta3
-        python setup.py install
-        
+        a.  With only readline+nose dependencies installed.
         b.  With all dependencies installed (readline, zope.interface,
-            Twisted, foolscap, Sphinx, nose, pyOpenSSL) (test2)
+            Twisted, foolscap, Sphinx, nose, pyOpenSSL).
     2.  Install using easy_install.
-        a.  With only readline+nose dependencies installed (test3)
-            i.  Default dependencies.
-            ii. Optional dependency sets (kernel, doc, test, security)
-            easy_install -f ipython-0.9.beta3-py2.5.egg IPython[kernel,doc,test,security]
-            
-        b.  With all dependencies already installed (test2)
+        a.  With only readline+nose dependencies installed.
+            i.  Default dependencies: `easy_install ipython-0.9.beta3-py2.5.egg`
+            ii. Optional dependency sets: `easy_install -f ipython-0.9.beta3-py2.5.egg IPython[kernel,doc,test,security]`
+        b.  With all dependencies already installed.
 
 
 Tests to run for these scenarios