diff --git a/cocoa/me/dg_cocoa.py b/cocoa/me/dg_cocoa.py
index 00ca67e6..999c4f99 100644
--- a/cocoa/me/dg_cocoa.py
+++ b/cocoa/me/dg_cocoa.py
@@ -5,7 +5,7 @@
 # http://www.hardcoded.net/licenses/hs_license
 
 import objc
-from AppKit import *
+from Foundation import NSObject
 
 from core_me.app_cocoa import DupeGuruME
 from core.scanner import (SCAN_TYPE_FILENAME, SCAN_TYPE_FIELDS, SCAN_TYPE_FIELDS_NO_ORDER,
diff --git a/cocoa/pe/dg_cocoa.py b/cocoa/pe/dg_cocoa.py
index 6d39ba92..4b88c53d 100644
--- a/cocoa/pe/dg_cocoa.py
+++ b/cocoa/pe/dg_cocoa.py
@@ -5,7 +5,7 @@
 # http://www.hardcoded.net/licenses/hs_license
 
 import objc
-from AppKit import *
+from Foundation import NSObject
 
 from core_pe import app_cocoa as app_pe_cocoa
 
diff --git a/cocoa/se/dg_cocoa.py b/cocoa/se/dg_cocoa.py
index ba4dd8e2..7102d50b 100644
--- a/cocoa/se/dg_cocoa.py
+++ b/cocoa/se/dg_cocoa.py
@@ -5,7 +5,7 @@
 # http://www.hardcoded.net/licenses/hs_license
 
 import objc
-from AppKit import *
+from Foundation import NSObject
 
 from core_se.app_cocoa import DupeGuru
 from core import scanner
diff --git a/core/app_cocoa.py b/core/app_cocoa.py
index 422c82cc..a5277116 100644
--- a/core/app_cocoa.py
+++ b/core/app_cocoa.py
@@ -7,12 +7,12 @@
 # http://www.hardcoded.net/licenses/hs_license
 
 import objc
-from Foundation import *
-from AppKit import *
+from Foundation import (NSNotificationCenter, NSUserDefaults, NSSearchPathForDirectoriesInDomains,
+    NSApplicationSupportDirectory, NSUserDomainMask)
 import logging
 import os.path as op
 
-from hsutil import io, cocoa, job
+from hsutil import cocoa, job
 from hsutil.cocoa import install_exception_hook
 from hsutil.misc import stripnone
 from hsutil.reg import RegistrationRequired
@@ -53,6 +53,8 @@ class DupeGuru(app.DupeGuru):
     #--- Override
     @staticmethod
     def _recycle_dupe(dupe):
+        # local import because first appkit import takes a lot of memory. we want to avoid it.
+        from AppKit import NSWorkspace, NSWorkspaceRecycleOperation
         directory = unicode(dupe.path[:-1])
         filename = dupe.name
         if objc.__version__ == '1.4': # For a while, we have to support this.
@@ -114,6 +116,8 @@ class DupeGuru(app.DupeGuru):
         self.make_reference(self.selected_dupes)
     
     def OpenSelected(self):
+        # local import because first appkit import takes a lot of memory. we want to avoid it.
+        from AppKit import NSWorkspace
         if self.selected_dupes:
             path = unicode(self.selected_dupes[0].path)
             NSWorkspace.sharedWorkspace().openFile_(path)
@@ -149,6 +153,8 @@ class DupeGuru(app.DupeGuru):
         return False
     
     def RevealSelected(self):
+        # local import because first appkit import takes a lot of memory. we want to avoid it.
+        from AppKit import NSWorkspace
         if self.selected_dupes:
             path = unicode(self.selected_dupes[0].path)
             NSWorkspace.sharedWorkspace().selectFile_inFileViewerRootedAtPath_(path,'')
diff --git a/core_pe/app_cocoa.py b/core_pe/app_cocoa.py
index ebd71755..54db2e14 100644
--- a/core_pe/app_cocoa.py
+++ b/core_pe/app_cocoa.py
@@ -11,7 +11,7 @@ import logging
 import plistlib
 import re
 
-from AppKit import NSBundle, NSUserDefaults, NSURL
+from Foundation import NSBundle, NSUserDefaults, NSURL
 from appscript import app, k, CommandError
 
 from hsutil import io
diff --git a/core_se/app_cocoa.py b/core_se/app_cocoa.py
index 10885cff..689b230c 100644
--- a/core_se/app_cocoa.py
+++ b/core_se/app_cocoa.py
@@ -11,11 +11,10 @@ from __future__ import unicode_literals
 import logging
 
 import objc
-from AppKit import *
+from AppKit import NSWorkspace
 
 from hsutil import io
 from hsutil.path import Path
-from hsutil.str import get_file_ext
 
 from core import fs
 from core.app_cocoa import DupeGuru as DupeGuruBase