diff --git a/electrum b/electrum
index 508e817f..68af9102 100755
--- a/electrum
+++ b/electrum
@@ -53,8 +53,7 @@ os.environ['KIVY_DATA_DIR'] = os.path.abspath(os.path.dirname(__file__)) + '/gui
 if is_local or is_android:
     sys.path.insert(0, os.path.join(script_dir, 'packages'))
 elif is_bundle and sys.platform=='darwin':
-    # TODO: py3
-    sys.path.insert(0, os.getcwd() + "/lib/python2.7/packages")
+    is_local = True
 
 
 def check_imports():
@@ -77,12 +76,9 @@ def check_imports():
     from google.protobuf import reflection
     from google.protobuf import descriptor_pb2
     from jsonrpclib import SimpleJSONRPCServer
-    # check that we have the correct version of ecdsa
-    try:
-        from ecdsa.ecdsa import curve_secp256k1, generator_secp256k1
-    except Exception:
-        sys.exit("cannot import ecdsa.curve_secp256k1. You probably need to upgrade ecdsa.\nTry: sudo pip install --upgrade ecdsa")
     # make sure that certificates are here
+    if is_bundle and sys.platform=='darwin':
+        requests.utils.DEFAULT_CA_BUNDLE_PATH = os.path.join(os.path.dirname(__file__), 'cacert.pem')
     assert os.path.exists(requests.utils.DEFAULT_CA_BUNDLE_PATH)
 
 
diff --git a/setup-release.py b/setup-release.py
index 04db5546..e0f79678 100644
--- a/setup-release.py
+++ b/setup-release.py
@@ -28,18 +28,17 @@ if sys.platform == 'darwin':
     from plistlib import Plist
     plist = Plist.fromFile('Info.plist')
     plist.update(dict(CFBundleIconFile='electrum.icns'))
-
-    shutil.copy(mainscript, mainscript + '.py')
-    mainscript += '.py'
+    shutil.copy(mainscript, 'run_electrum.py')
+    mainscript = 'run_electrum.py'
     extra_options = dict(
         setup_requires=['py2app'],
         app=[mainscript],
         options=dict(py2app=dict(argv_emulation=False,
                                  includes=['PyQt4.QtCore', 'PyQt4.QtGui', 'PyQt4.QtWebKit', 'PyQt4.QtNetwork', 'sip'],
-                                 packages=['lib', 'gui.qt', 'plugins'],
+                                 packages=['lib', 'gui', 'plugins'],
                                  iconfile='electrum.icns',
                                  plist=plist,
-                                 resources=["icons"])),
+                                 resources=['icons', 'cacert.pem'])),
     )
 elif sys.platform == 'win32':
     extra_options = dict(