Question

我一直在尝试安装rpy2模块，所以我可以在我的Python脚本中使用R函数，但是在遵循这些页面的建议后我收到错误：

1） Tried to guess R's HOME but no R command in the PATH. OsX 10.6

2） http://rpy.sourceforge.net/rpy2/doc-dev/html/overview.html

到目前为止我做了什么：

1）编辑我的路径环境变量以包含“C：\ Program Files \ R \ R-3.1.0 \ bin \ x64;”

2）创建一个名为“R_HOME”的新环境变量，并将其值设置为“C：\ Program Files \ R \ R-3.1.0”

3）创建一个名为“R_USER”的新环境变量，并将其值设置为“Hefin”（我的Windows用户名）

然后在我的命令提示符下输入：

easy_install rpy2

据我所知，easy_install已正确设置并安装。

我得到的输出是：

Searching for rpy2
Reading https://pypi.python.org/simple/rpy2/
Best match: rpy2 2.5.5
Downloading https://pypi.python.org/packages/source/r/rpy2/rpy2-2.5.5.tar.gz#md5=c874bebbe775e3cdc926a1da00252c37
Processing rpy2-2.5.5.tar.gz
Writing C:\Users\Hefin\AppData\Local\Temp\easy_install-98mu0_xn\rpy2-2.5.5\setup.cfg
Running rpy2-2.5.5\setup.py -q bdist_egg --dist-dir C:\Users\Hefin\AppData\Local\Temp\easy_install-98mu0_xn\rpy2-2.5.5\egg-dist-tmp-00qpf_z8
The system cannot find the path specified.
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 150, in save_modules
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 191, in setup_context
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 235, in run_setup
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 265, in run
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 234, in runner
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 46, in _execfile
  File "C:\Users\Hefin\AppData\Local\Temp\easy_install-98mu0_xn\rpy2-2.5.5\setup.py", line 282, in <module>
  File "C:\Users\Hefin\AppData\Local\Temp\easy_install-98mu0_xn\rpy2-2.5.5\setup.py", line 185, in getRinterface_ext
  File "C:\Users\Hefin\AppData\Local\Temp\easy_install-98mu0_xn\rpy2-2.5.5\setup.py", line 106, in version
  File "C:\Python34\lib\subprocess.py", line 620, in check_output
    raise CalledProcessError(retcode, process.args, output=output)
subprocess.CalledProcessError: Command '('C:\\PROGRA~1\\R\\R-31~1.0\\bin\\R', '--version')' returned non-zero exit status 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python34\Scripts\easy_install-script.py", line 9, in <module>
    load_entry_point('setuptools==12.0.5', 'console_scripts', 'easy_install')()
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\command\easy_install.py", line 2244, in main
  File "C:\Python34\lib\distutils\core.py", line 148, in setup
    dist.run_commands()
  File "C:\Python34\lib\distutils\dist.py", line 955, in run_commands
    self.run_command(cmd)
  File "C:\Python34\lib\distutils\dist.py", line 974, in run_command
    cmd_obj.run()
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\command\easy_install.py", line 374, in run
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\command\easy_install.py", line 623, in easy_install
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\command\easy_install.py", line 653, in install_item
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\command\easy_install.py", line 838, in install_eggs
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\command\easy_install.py", line 1066, in build_and_install
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\command\easy_install.py", line 1052, in run_setup
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 238, in run_setup
  File "C:\Python34\lib\contextlib.py", line 77, in __exit__
    self.gen.throw(type, value, traceback)
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 191, in setup_context
  File "C:\Python34\lib\contextlib.py", line 77, in __exit__
    self.gen.throw(type, value, traceback)
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 162, in save_modules
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 137, in resume
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\compat.py", line 65, in reraise
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 150, in save_modules
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 191, in setup_context
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 235, in run_setup
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 265, in run
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 234, in runner
  File "C:\Python34\lib\site-packages\setuptools-12.0.5-py3.4.egg\setuptools\sandbox.py", line 46, in _execfile
  File "C:\Users\Hefin\AppData\Local\Temp\easy_install-98mu0_xn\rpy2-2.5.5\setup.py", line 282, in <module>
  File "C:\Users\Hefin\AppData\Local\Temp\easy_install-98mu0_xn\rpy2-2.5.5\setup.py", line 185, in getRinterface_ext
  File "C:\Users\Hefin\AppData\Local\Temp\easy_install-98mu0_xn\rpy2-2.5.5\setup.py", line 106, in version
  File "C:\Python34\lib\subprocess.py", line 620, in check_output
    raise CalledProcessError(retcode, process.args, output=output)
subprocess.CalledProcessError: Command '('C:\\PROGRA~1\\R\\R-31~1.0\\bin\\R', '--version')' returned non-zero exit status 1

C:\Users\Hefin>

对不起，这太冗长了！如果我然后调用python并尝试导入rpy模块，我得到：

>>> import python
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named 'python'
>>>

我害怕我是Python的新手，我不知道我做错了什么。我搜索过以前的论坛帖子，但似乎都没有这个问题。我使用的是带有Windows 7，Python3.4和R3.1.0的64位机器。

任何帮助或想法都会受到高度赞赏，因为我确信这只是一些简单的事我做错了。

谢谢！

Hefin

Answer 1

有一个更简单的方法 - 从Christoph Gohlke的Windows扩展软件包here安装rpy2。下载rpy2‑2.5.5‑cp34‑none‑win_amd64.whl文件（撰写本文时的当前版本），更改为命令行上的下载文件夹，然后运行

pip install rpy2‑2.5.5‑cp34‑none‑win_amd64.whl

pip已包含在Python 3.4中，在安装新模块时应使用easy_install代替easy_install，因为{{1}}已弃用。

Answer 2

使用conda直接在Windows上安装rpy2

conda install rpy2

使用easy_install在Python中安装rpy2模块时出错

2 个答案: