--- a/mercurial/extensions.py	Fri May 13 11:04:51 2011 -0500
+++ b/mercurial/extensions.py	Fri May 13 11:04:51 2011 -0500
@@ -6,7 +6,7 @@
 # GNU General Public License version 2 or any later version.
 
 import imp, os
-import util, cmdutil, help, error
+import util, cmdutil, error
 from i18n import _, gettext
 
 _extensions = {}
@@ -209,6 +209,38 @@
         exts[name] = path
     return exts
 
+def _moduledoc(file):
+    '''return the top-level python documentation for the given file
+
+    Loosely inspired by pydoc.source_synopsis(), but rewritten to
+    handle triple quotes and to return the whole text instead of just
+    the synopsis'''
+    result = []
+
+    line = file.readline()
+    while line[:1] == '#' or not line.strip():
+        line = file.readline()
+        if not line:
+            break
+
+    start = line[:3]
+    if start == '"""' or start == "'''":
+        line = line[3:]
+        while line:
+            if line.rstrip().endswith(start):
+                line = line.split(start)[0]
+                if line:
+                    result.append(line)
+                break
+            elif not line:
+                return None # unmatched delimiter
+            result.append(line)
+            line = file.readline()
+    else:
+        return None
+
+    return ''.join(result)
+
 def _disabledhelp(path):
     '''retrieve help synopsis of a disabled extension (without importing)'''
     try:
@@ -216,7 +248,7 @@
     except IOError:
         return
     else:
-        doc = help.moduledoc(file)
+        doc = moduledoc(file)
         file.close()
 
     if doc: # extracting localized synopsis

--- a/mercurial/help.py	Fri May 13 11:04:51 2011 -0500
+++ b/mercurial/help.py	Fri May 13 11:04:51 2011 -0500
@@ -10,39 +10,6 @@
 import extensions
 import util
 
-
-def moduledoc(file):
-    '''return the top-level python documentation for the given file
-
-    Loosely inspired by pydoc.source_synopsis(), but rewritten to
-    handle triple quotes and to return the whole text instead of just
-    the synopsis'''
-    result = []
-
-    line = file.readline()
-    while line[:1] == '#' or not line.strip():
-        line = file.readline()
-        if not line:
-            break
-
-    start = line[:3]
-    if start == '"""' or start == "'''":
-        line = line[3:]
-        while line:
-            if line.rstrip().endswith(start):
-                line = line.split(start)[0]
-                if line:
-                    result.append(line)
-                break
-            elif not line:
-                return None # unmatched delimiter
-            result.append(line)
-            line = file.readline()
-    else:
-        return None
-
-    return ''.join(result)
-
 def listexts(header, exts, indent=1):
     '''return a text listing of the given extensions'''
     if not exts: