*** empty log message ***

diff --git a/Lib/knee.py b/Lib/knee.py
new file mode 100644 (file)
index 0000000..47f65cb
--- /dev/null
+++ b/Lib/knee.py
@@ -0,0 +1,115 @@
+# More structured (slower) alternative to mini
+
+import sys, imp, __builtin__, string
+
+
+# Replacement for __import__()
+def import_hook(name, globals=None, locals=None, fromlist=None):
+    parent = determine_parent(globals)
+    q, tail = find_head_package(parent, name)
+    m = load_tail(q, tail)
+    if not fromlist:
+       return q
+    if hasattr(m, "__path__"):
+       ensure_fromlist(m, fromlist)
+    return m
+
+def determine_parent(globals):
+    if not globals or  not globals.has_key("__name__"):
+       return None
+    pname = globals['__name__']
+    if globals.has_key("__path__"):
+       parent = sys.modules[pname]
+       assert globals is parent.__dict__
+       return parent
+    if '.' in pname:
+       i = string.rfind(pname, '.')
+       pname = pname[:i]
+       parent = sys.modules[pname]
+       assert parent.__name__ == pname
+       return parent
+    return None
+
+def find_head_package(parent, name):
+    if '.' in name:
+       i = string.find(name, '.')
+       head = name[:i]
+       tail = name[i+1:]
+    else:
+       head = name
+       tail = ""
+    if parent:
+       qname = "%s.%s" % (parent.__name__, head)
+    else:
+       qname = head
+    q = import_module(head, qname, parent)
+    if q: return q, tail
+    if parent:
+       qname = head
+       parent = None
+       q = import_module(head, qname, parent)
+       if q: return q, tail
+    raise ImportError, "No module named " + qname
+
+def load_tail(q, tail):
+    m = q
+    while tail:
+       i = string.find(tail, '.')
+       if i < 0: i = len(tail)
+       head, tail = tail[:i], tail[i+1:]
+       mname = "%s.%s" % (m.__name__, head)
+       m = import_module(head, mname, m)
+       if not m:
+           raise ImportError, "No module named " + mname
+    return m
+
+def ensure_fromlist(m, fromlist):
+    for sub in fromlist:
+       if sub != "*" and not hasattr(m, sub):
+           subname = "%s.%s" % (m.__name__, sub)
+           submod = import_module(sub, subname, m)
+##         if not submod:
+##             raise ImportError, "No module named " + subname
+
+def import_module(partname, fqname, parent):
+    try:
+       return sys.modules[fqname]
+    except KeyError:
+       pass
+    try:
+       fp, pathname, stuff = imp.find_module(partname,
+                                             parent and parent.__path__)
+    except ImportError:
+       return None
+    try:
+       m = imp.load_module(fqname, fp, pathname, stuff)
+    finally:
+       if fp: fp.close()
+    if parent:
+       setattr(parent, partname, m)
+    return m
+
+
+# Replacement for reload()
+def reload_hook(module):
+    name = module.__name__
+    if '.' not in name:
+       return import_module(name, name, None)
+    i = string.rfind(name, '.')
+    pname = name[:i]
+    parent = sys.modules[pname]
+    return import_module(name[i+1:], name, parent)
+
+
+# Save the original hooks
+original_import = __builtin__.__import__
+original_reload = __builtin__.reload
+
+# Now install our hooks
+__builtin__.__import__ = import_hook
+__builtin__.reload = reload_hook
+
+# pretend we're ni, too
+sys.modules['ni'] = sys.modules[__name__]
+def ni(): pass
+def install(): pass