--- a/hgdemandimport/demandimportpy2.py	Sun May 21 13:44:26 2017 -0700
+++ b/hgdemandimport/demandimportpy2.py	Sun May 21 12:10:53 2017 -0700
@@ -265,46 +265,11 @@
 
         return mod
 
-ignore = [
-    '__future__',
-    '_hashlib',
-    # ImportError during pkg_resources/__init__.py:fixup_namespace_package
-    '_imp',
-    '_xmlplus',
-    'fcntl',
-    'nt', # pathlib2 tests the existence of built-in 'nt' module
-    'win32com.gen_py',
-    'win32com.shell', # 'appdirs' tries to import win32com.shell
-    '_winreg', # 2.7 mimetypes needs immediate ImportError
-    'pythoncom',
-    # imported by tarfile, not available under Windows
-    'pwd',
-    'grp',
-    # imported by profile, itself imported by hotshot.stats,
-    # not available under Windows
-    'resource',
-    # this trips up many extension authors
-    'gtk',
-    # setuptools' pkg_resources.py expects "from __main__ import x" to
-    # raise ImportError if x not defined
-    '__main__',
-    '_ssl', # conditional imports in the stdlib, issue1964
-    '_sre', # issue4920
-    'rfc822',
-    'mimetools',
-    'sqlalchemy.events', # has import-time side effects (issue5085)
-    # setuptools 8 expects this module to explode early when not on windows
-    'distutils.msvc9compiler',
-    '__builtin__',
-    'builtins',
-    'urwid.command_map', # for pudb
-    ]
+ignore = []
 
-if _pypy:
-    ignore.extend([
-        # _ctypes.pointer is shadowed by "from ... import pointer" (PyPy 5)
-        '_ctypes.pointer',
-    ])
+def init(ignorelist):
+    global ignore
+    ignore = ignorelist
 
 def isenabled():
     return builtins.__import__ == _demandimport