diff --git a/method/hg.py b/method/hg.py
index 4390081..662dd2d 100644
--- a/method/hg.py
+++ b/method/hg.py
@@ -1,32 +1,21 @@
-try:
-    import mercurial
-    from mercurial import hg
-    from mercurial import ui
-    from mercurial import commands as hgc
-    has_hg = True
-except ImportError:
-    has_hg = False
-
-import buffer, default, dirutil, lex, regex, util, window
-from point import Point
-
 from method import Method, Argument
 
 class HgDiff(Method):
-    """
-
-    """
+    """Diff the current file with the version in Mercurial"""
     def _execute(self, w, **vargs):
-        if not has_hg:
+        try:
+            from mercurial import hg, ui
+            from mercurial import commands as hgc
+        except ImportError:
             w.set_error("Mecurial is not installed")
             return
-        elif not hasattr(w.buffer, 'path'):
+        
+        if not hasattr(w.buffer, 'path'):
             w.set_error("Buffer has no corresponding file")
             return
         ui_imp = ui.ui(verbose=True)
-        repo = hg.repository(ui=ui_imp, path='.')
         ui_imp.pushbuffer()
+        repo = hg.repository(ui=ui_imp, path='.')
         hgc.diff(ui_imp, repo, w.buffer.path)
-        data = ui_imp.popbuffer()
-        w.application.data_buffer("*Diff*", "".join(data), 
-                                  switch_to=True, modename='diff')
+        s = ''.join(ui_imp.popbuffer())
+        w.application.data_buffer("*Diff*", s, switch_to=True, modename='diff')