Correctly recognize .egg files that are already on sys.path (or whatever

path AvailableDistributions is scanning)

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4041021

pkg_resources.py

@@ -755,6 +755,15 @@ def find_distributions(path_item):
     return finder(importer,path_item)
 
 
+def find_in_zip(importer,path_item):
+    # for now, we only yield the .egg file itself, if applicable; 
+    # i.e., we don't support "baskets" yet, just eggs
+    for item in find_on_path(importer,path_item):
+        yield item
+
+register_finder(zipimport.zipimporter,find_in_zip)
+
+
 def StringIO(*args, **kw):
     """Thunk to load the real StringIO on demand"""
     global StringIO
@@ -770,13 +779,6 @@ def StringIO(*args, **kw):
 
 
 
-
-
-
-
-
-
-
 def find_nothing(importer,path_item):
     return ()