seen with the 2.7.11 release candidate; I'm not yet 100% if this is the fix for #22995 causing these test regressions.

[ 93/395] test_cpickle
test test_cpickle failed -- multiple errors occurred; run in verbose mode for details
[101/395/2] test_decimal
test test_decimal failed -- Traceback (most recent call last):
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/test/test_decimal.py", line 1774, in test_pickle
    e = pickle.loads(pickle.dumps(c, proto))
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/pickle.py", line 1380, in dumps
    Pickler(file, protocol).dump(obj)
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/pickle.py", line 224, in dump
    self.save(obj)
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/pickle.py", line 306, in save
    rv = reduce(self.proto)
AttributeError: 'module' object has no attribute '_reduce_ex'

[108/395/4] test_dictviews
test test_dictviews failed -- Traceback (most recent call last):
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/test/test_dictviews.py", line 201, in test_pickle
    pickle.dumps, d.viewkeys(), proto)
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/unittest/case.py", line 473, in assertRaises
    callableObj(*args, **kwargs)
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/pickle.py", line 1380, in dumps
    Pickler(file, protocol).dump(obj)
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/pickle.py", line 224, in dump
    self.save(obj)
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/pickle.py", line 306, in save
    rv = reduce(self.proto)
AttributeError: 'module' object has no attribute '_reduce_ex'

[177/395/7] test_imp
test test_imp failed -- Traceback (most recent call last):
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/test/test_imp.py", line 60, in test_source
    imp.reload(os)
  File "/home/packages/python/2.7/python2.7-2.7.11~rc1/Lib/os.py", line 727, in <module>
    _copy_reg.pickle(stat_result, _pickle_stat_result, _make_stat_result)
AttributeError: 'module' object has no attribute 'pickle'

[184/395/10] test_int_literal
[185/395/10] test_ioctl
test test_ioctl crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[186/395/11] test_isinstance
[187/395/11] test_iter
[188/395/11] test_iterlen
[189/395/11] test_itertools
[190/395/11] test_json
test test_json crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[191/395/12] test_kqueue
test_kqueue skipped -- test works only on BSD
[192/395/12] test_largefile
test test_largefile crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[193/395/13] test_lib2to3
test test_lib2to3 crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[194/395/14] test_linecache
test test_linecache crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[195/395/15] test_list
test test_list crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[196/395/16] test_locale
[197/395/16] test_logging
test test_logging crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[198/395/17] test_long
[199/395/17] test_long_future
[200/395/17] test_longexp
[201/395/17] test_macos
test test_macos crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[202/395/18] test_macostools
test test_macostools crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[203/395/19] test_macpath
[204/395/19] test_macurl2path
[205/395/19] test_mailbox
test test_mailbox crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[206/395/20] test_marshal
test test_marshal crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[207/395/21] test_math
test test_math crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'
[208/395/22] test_md5
[209/395/22] test_memoryio
test test_memoryio failed -- multiple errors occurred; run in verbose mode for details
[210/395/23] test_memoryview
[211/395/23] test_mhlib
test test_mhlib crashed -- <type 'exceptions.AttributeError'>: 'module' object has no attribute 'pickle'