当我尝试import multiprocessing在 OS X 10.6.8 上的 Python 2.7.5 中，我收到此错误：
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/multiprocessing/__init__.py", line 65, in <module>
from multiprocessing.util import SUBDEBUG, SUBWARNING
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/multiprocessing/util.py", line 40, in <module>
from subprocess import _args_from_interpreter_flags
ImportError: cannot import name _args_from_interpreter_flags
我也尝试用homebrew安装python2.7.6，但仍然出现这个错误。
听起来像是一个圆import issue。尝试将其添加到其余的导入中：
from subprocess import _args_from_interpreter_flags
该函数上方有一条注释subprocess.py:
# XXX This function is only used by multiprocessing and the test suite,
# but it's here so that it can be imported when Python is compiled without
# threads.
可能有关系。
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