我试图在我的MacBook中安装Kafka-Python，但无法做到这一点。下面是安装在我的MacBook上的软件版本。

Mac Sierra
Python 3.7.0a4
Python 2.7.10(Default)
Kafka 3.5

首先，我使用命令sudo easy_install pip安装pip。
接下来我试着用pip install kafka-python来安装Kafka-python，但是失败了，因为有两个Kafka示例在运行，而且它使用的是旧版本（2.7）。

Exception:
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/commands/install.py", line 342, in run
    prefix=options.prefix_path,
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_set.py", line 784, in install
    **kwargs
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_install.py", line 851, in install
    self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_install.py", line 1064, in move_wheel_files
    isolated=self.isolated,
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/wheel.py", line 345, in move_wheel_files
    clobber(source, lib_dir, True)
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/wheel.py", line 316, in clobber
    ensure_dir(destdir)
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/utils/__init__.py", line 83, in ensure_dir
    os.makedirs(path)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py", line 157, in makedirs
    mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/kafka_python-1.3.5.dist-info'

我想在python 3.7版本上安装Kafka-python，但命令一次又一次地使用2.7版本。所以最后我按照下面的URL安装pip3，然后安装Kafka-python，它成功安装：http://itsevans.com/install-pip-osx/.
安装后，pip3安装在路径/Library/Frameworks/Python.framework/Versions/3.7/bin/pip3中，Kafka-Python安装在路径/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages中。
路径中的文件夹包括：

-rw-rw-r--   1 root     admin   126 Jan 24 20:52 easy_install.py
drwxrwxr-x  34 root     admin  1088 Jan 24 20:52 setuptools
drwxrwxr-x   6 root     admin   192 Jan 24 20:52 pkg_resources
drwxrwxr-x  12 root     admin   384 Jan 24 20:52 setuptools-28.8.0.dist-info
drwxrwxr-x  23 root     admin   736 Jan 24 20:52 pip
drwxrwxr-x  10 root     admin   320 Jan 24 20:52 pip-9.0.1.dist-info
drwxrwxr-x   4 root     admin   128 Jan 24 20:52 __pycache__
drwxr-xr-x  18 *******  admin   576 Feb  2 12:26 wheel
drwxr-xr-x  11 *******  admin   352 Feb  2 12:26 wheel-0.30.0.dist-info
drwxr-xr-x  24 *******  admin   768 Feb  2 12:28 kafka
drwxr-xr-x   9 *******  admin   288 Feb  2 12:28 kafka_python-1.3.5.dist-info

当我尝试在终端或PyCharm中导入Kafka时，它根本无法识别Kafka包并给出编译错误。2在终端中，它抛出以下错误：

>>> import kafka
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/kafka/__init__.py", line 23, in <module>
    from kafka.producer import KafkaProducer
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/kafka/producer/__init__.py", line 4, in <module>
    from .simple import SimpleProducer
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/kafka/producer/simple.py", line 54
    return '<SimpleProducer batch=%s>' % self.async
                                                  ^
SyntaxError: invalid syntax

Pycharm编辑器无法识别Kafka包，因此会出现编译错误。如有任何关于如何配置Kafka-python的帮助，我们将不胜感激。