Oops!  Restored the pickle test to test_pyclbr, but changed types.py so
that pyclbr doesn't need to special-case modules that do "from types
import *".
diff --git a/Lib/test/test_pyclbr.py b/Lib/test/test_pyclbr.py
index 4f2d5ea..48e8bf7 100644
--- a/Lib/test/test_pyclbr.py
+++ b/Lib/test/test_pyclbr.py
@@ -142,6 +142,7 @@
         cm('urllib', ignore=('getproxies_registry',
                              'open_https',
                              'getproxies_internetconfig',)) # not on all platforms
+        cm('pickle')
         cm('aifc', ignore=('openfp',))  # set with = in module
         cm('Cookie')
         cm('sre_parse', ignore=('dump',)) # from sre_constants import *