没有魔法[IP][y]：iPython --腐败的python内核？

Question

运行单元格时，已经描述过之前。

%%R

我收到以下错误：

ERROR:root:Cell magic `%%R` not found.

正在尝试

%load_ext rmagic

导致：

C:\Anaconda2\envs\ipykernel_py2\lib\site-packages\IPython\extensions\rmagic.py:11:
UserWarning: The rmagic extension in IPython has moved to `rpy2.ipython`,
please see `rpy2` documentation.

warnings.warn("The rmagic extension in IPython has moved to "

显然，这个命令看起来像是“不赞成”。然后我试着：

%load_ext rpy2.ipython

这会导致多个错误，因此我检查文件夹C:\Anaconda2\envs\ipykernel_py2\lib\site-packages\IPython\extensions并找到rmagic .py和.pyc，但是没有与rpy2.ipython相关的文件。

然后再试一次%load_ext rmagic：

The rmagic extension is already loaded. To reload it, use:
    %reload_ext rmagic.py

%%R的错误不会改变。

最后，我

pip install rpy2

当安装程序运行Rterm.exe时，收到以下错误：

libgcc_s_dw2-1.dll (mentioned twice)
libbz2-1.dll
liblzma-5.dll

在这台计算机上丢失，我必须重新安装RTerm，我猜这是RTools的一部分。最终，stderr/stdout：

Collecting rpy2
 Using cached rpy2-2.8.4.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "c:\users\user\appdata\local\temp\pip-build-1mtkwa\rpy2\setup.py",
line 331, in <module>
    ri_ext = getRinterface_ext()
  File "c:\users\user\appdata\local\temp\pip-build-1mtkwa\rpy2\setup.py", line 234,
in getRinterface_ext
    if rexec.version[0] == 'development' or \
  File "c:\users\user\appdata\local\temp\pip-build-1mtkwa\rpy2\setup.py",
line 160, in version
    universal_newlines = True)
  File "C:\Anaconda2\envs\ipykernel_py2\lib\subprocess.py",
line 574, in check_output
    raise CalledProcessError(retcode, cmd, output=output)
subprocess.CalledProcessError:
Command '('C:\\Anaconda2\\R\\bin\\R', '--version')'
returned non-zero exit status -1073741515

我的计算机上安装了R-Essentials (通过conda)、RStudio和R。在conda安装过程中，只有一个关于p11-kit (PKCS 11)的抱怨，我认为这是不相关的。

运行>jupyter对的疑难解答显示r-base有版本号0 (向下滚动)。

[31mDEPRECATION: The default format will switch to columns in the future. You can use --format=(legacy|columns) (or define a format=(legacy|columns) in your pip.conf under the [list] section) to disable this warning.[0m
$PATH:

    C
    \Anaconda2\Library\bin;C
    \Anaconda2\Scripts;C
    \Anaconda2\Library\bin;C
    \Windows\system32;C
    \Windows;C
    \Windows\System32\Wbem;C
    \Windows\System32\WindowsPowerShell\v1.0\;%JAVA%;%PYTHONPATH%;%PYTHONPATH%\Scripts;%PYTHONPATH%\Library\bin;%GITPATH%;C
    \Program Files\MATLAB\R2016b\runtime\win64;C
    \Program Files\MATLAB\R2016b\bin;C
    \Users\user\AppData\Local\Microsoft\WindowsApps;C
    \ProgramData\Oracle\Java\javapath;C
    \Program Files\Git;%GITPATH\cmd%;C
    \Program Files\Git\bin;C
    \Anaconda2;C
    \Anaconda2\Scripts;C
    \Anaconda2\Library\bin;C
    \ProgramData\che;C
    \Program Files\R\R-3.3.2\bin;

如您所见，定义了PYTHONPATH。这与科统的建议背道而驰，但我看不出这可能是罪魁祸首。

sys.path:

    C:\Anaconda2\Scripts
    C:\Anaconda2
    C:\Anaconda2\python27.zip
    C:\Anaconda2\DLLs
    C:\Anaconda2\lib
    C:\Anaconda2\lib\plat-win
    C:\Anaconda2\lib\lib-tk
    C:\Anaconda2\lib\site-packages
    C:\Anaconda2\lib\site-packages\Sphinx-1.4.6-py2.7.egg
    C:\Anaconda2\lib\site-packages\win32
    C:\Anaconda2\lib\site-packages\win32\lib
    C:\Anaconda2\lib\site-packages\Pythonwin
    C:\Anaconda2\lib\site-packages\setuptools-27.2.0-py2.7.egg

sys.executable:
        C:\Anaconda2\python.exe

sys.version:
        2.7.12 |Anaconda 4.2.0 (32-bit)| (default, Jun 29 2016, 11:42:13) [MSC v.1500 32 bit (Intel)]

platform.platform():
        Windows-10-10.0.14393

where jupyter:
        C:\Anaconda2\Scripts\jupyter.exe

pip list:
        alabaster (0.7.9)
        anaconda-clean (1.0)
        anaconda-client (1.5.1)
        anaconda-navigator (1.3.1)
        argcomplete (1.0.0)
        astroid (1.4.7)
        astropy (1.2.1)
        Babel (2.3.4)
        backports-abc (0.4)
        backports.shutil-get-terminal-size (1.0.0)
        backports.ssl-match-hostname (3.4.0.2)
        beautifulsoup4 (4.5.1)
        bitarray (0.8.1)
        blaze (0.10.1)
        bokeh (0.12.2)
        boto (2.42.0)
        Bottleneck (1.1.0)
        cdecimal (2.3)
        cffi (1.7.0)
        chest (0.2.3)
        click (6.6)
        cloudpickle (0.2.1)
        clyent (1.2.2)
        colorama (0.3.7)
        comtypes (1.1.2)
        conda (4.2.13)
        conda-build (2.0.2)
        configobj (5.0.6)
        configparser (3.5.0)
        contextlib2 (0.5.3)
        cryptography (1.5)
        cycler (0.10.0)
        Cython (0.24.1)
        cytoolz (0.8.0)
        dask (0.11.0)
        datashape (0.5.2)
        decorator (4.0.10)
        dill (0.2.5)
        docutils (0.12)
        enum34 (1.1.6)
        et-xmlfile (1.0.1)
        ez-setup (0.9)
        fastcache (1.0.2)
        filelock (2.0.6)
        Flask (0.11.1)
        Flask-Cors (2.1.2)
        funcsigs (1.0.2)
        functools32 (3.2.3.post2)
        futures (3.0.5)
        gevent (1.1.2)
        greenlet (0.4.10)
        grin (1.2.1)
        h5py (2.6.0)
        HeapDict (1.0.0)
        idna (2.1)
        imagesize (0.7.1)
        ipaddress (1.0.16)
        ipykernel (4.5.0)
        ipython (5.1.0)
        ipython-genutils (0.1.0)
        ipywidgets (5.2.2)
        itsdangerous (0.24)
        jdcal (1.2)
        jedi (0.9.0)
        Jinja2 (2.8)
        jsonschema (2.5.1)
        jupyter (1.0.0)
        jupyter-client (4.4.0)
        jupyter-console (5.0.0)
        jupyter-core (4.2.0)
        lazy-object-proxy (1.2.1)
        llvmlite (0.13.0)
        locket (0.2.0)
        lxml (3.6.4)
        MarkupSafe (0.23)
        matplotlib (1.5.3)
        menuinst (1.4.1)
        mistune (0.7.3)
        mpmath (0.19)
        multipledispatch (0.4.8)
        nb-anacondacloud (1.2.0)
        nb-conda (2.0.0)
        nb-conda-kernels (2.0.0)
        nbconvert (4.2.0)
        nbformat (4.1.0)
        nbpresent (3.0.2)
        networkx (1.11)
        nltk (3.2.1)
        nose (1.3.7)
        notebook (4.2.3)
        numba (0.28.1+0.gfe99fbc.dirty)
        numexpr (2.6.1)
        numpy (1.11.1)
        odo (0.5.0)
        openpyxl (2.3.2)
        pandas (0.18.1)
        partd (0.3.6)
        path.py (0.0.0)
        pathlib2 (2.1.0)
        patsy (0.4.1)
        pep8 (1.7.0)
        pickleshare (0.7.4)
        Pillow (3.3.1)
        pip (9.0.1)
        pkginfo (1.3.2)
        ply (3.9)
        prompt-toolkit (1.0.9)
        psutil (4.3.1)
        py (1.4.31)
        pyasn1 (0.1.9)
        pycosat (0.6.1)
        pycparser (2.14)
        pycrypto (2.6.1)
        pycurl (7.43.0)
        pyflakes (1.3.0)
        Pygments (2.1.3)
        pylint (1.5.4)
        pyOpenSSL (16.0.0)
        pyparsing (2.1.4)
        pytest (2.9.2)
        python-dateutil (2.5.3)
        pytz (2016.6.1)
        pywin32 (220)
        PyYAML (3.12)
        pyzmq (15.4.0)
        QtAwesome (0.3.3)
        qtconsole (4.2.1)
        QtPy (1.1.2)
        requests (2.11.1)
        rope (0.9.4)
        ruamel-yaml (-VERSION)
        scikit-image (0.12.3)
        scikit-learn (0.17.1)
        scipy (0.18.1)
        setuptools (27.2.0)
        simplegeneric (0.8.1)
        singledispatch (3.4.0.3)
        six (1.10.0)
        snowballstemmer (1.2.1)
        sockjs-tornado (1.0.3)
        sphinx (1.4.6)
        spyder (3.0.0)
        SQLAlchemy (1.0.13)
        statsmodels (0.6.1)
        sympy (1.0)
        tables (3.2.2)
        toolz (0.8.0)
        tornado (4.4.1)
        traitlets (4.3.0)
        unicodecsv (0.14.1)
        wcwidth (0.1.7)
        Werkzeug (0.11.11)
        wheel (0.29.0)
        widgetsnbextension (1.2.6)
        win-unicode-console (0.5)
        wrapt (1.10.6)
        xlrd (1.0.0)
        XlsxWriter (0.9.3)
        xlwings (0.10.0)
        xlwt (1.1.2)

摘录：>>conda列表：

    # packages in environment at C:\Anaconda2:
    #

    r                         3.3.1                  r3.3.1_0    r
    r-assertthat              0.1                    r3.3.1_2    r
    r-base                    3.3.1                         0    r
    r-base64enc               0.1_3                  r3.3.1_0    r
    r-bh                      1.60.0_2               r3.3.1_0    r
    r-bitops                  1.0_6                  r3.3.1_2    r
    r-boot                    1.3_18                 r3.3.1_0    r
    r-car                     2.1_2                  r3.3.1_0    r
    r-caret                   6.0_70                 r3.3.1_0    r
    r-catools                 1.17.1                 r3.3.1_2    r
    r-chron                   2.3_47                 r3.3.1_0    r
    r-class                   7.3_14                 r3.3.1_0    r
    r-cluster                 2.0.4                  r3.3.1_0    r
    r-codetools               0.2_14                 r3.3.1_0    r
    r-colorspace              1.2_6                  r3.3.1_0    r
    r-crayon                  1.3.1                  r3.3.1_0    r
    r-curl                    0.9.7                  r3.3.1_0    r
    r-data.table              1.9.6                  r3.3.1_0    r
    r-dbi                     0.4_1                  r3.3.1_0    r
    r-dichromat               2.0_0                  r3.3.1_2    r
    r-digest                  0.6.9                  r3.3.1_0    r
    r-dplyr                   0.4.3                  r3.3.1_0    r
    r-essentials              1.4.2                  r3.3.1_0    r
    r-evaluate                0.9                    r3.3.1_0    r
    r-foreach                 1.4.3                  r3.3.1_0    r
    r-foreign                 0.8_66                 r3.3.1_0    r
    r-formatr                 1.4                    r3.3.1_0    r
    r-ggplot2                 2.1.0                  r3.3.1_0    r
    r-gistr                   0.3.6                  r3.3.1_0    r
    r-glmnet                  2.0_5                  r3.3.1_0    r
    r-gtable                  0.2.0                  r3.3.1_0    r
    r-hexbin                  1.27.1                 r3.3.1_0    r
    r-highr                   0.6                    r3.3.1_0    r
    r-htmltools               0.3.5                  r3.3.1_0    r
    r-htmlwidgets             0.6                    r3.3.1_0    r
    r-httpuv                  1.3.3                  r3.3.1_0    r
    r-httr                    1.2.0                  r3.3.1_0    r
    r-irdisplay               0.4.3                  r3.3.1_2    r
    r-irkernel                0.7                    r3.3.1_2    r
    r-iterators               1.0.8                  r3.3.1_0    r
    r-jsonlite                0.9.22                 r3.3.1_0    r
    r-kernsmooth              2.23_15                r3.3.1_0    r
    r-knitr                   1.13                   r3.3.1_0    r
    r-labeling                0.3                    r3.3.1_2    r
    r-lattice                 0.20_33                r3.3.1_0    r
    r-lazyeval                0.2.0                  r3.3.1_0    r
    r-lme4                    1.1_12                 r3.3.1_0    r
    r-magrittr                1.5                    r3.3.1_2    r
    r-maps                    3.1.0                  r3.3.1_0    r
    r-markdown                0.7.7                  r3.3.1_2    r
    r-mass                    7.3_45                 r3.3.1_0    r
    r-matrix                  1.2_6                  r3.3.1_0    r
    r-matrixmodels            0.4_1                  r3.3.1_0    r
    r-memoise                 1.0.0                  r3.3.1_0    r
    r-mgcv                    1.8_12                 r3.3.1_0    r
    r-mime                    0.4                    r3.3.1_0    r
    r-minqa                   1.2.4                  r3.3.1_2    r
    r-munsell                 0.4.3                  r3.3.1_0    r
    r-nlme                    3.1_128                r3.3.1_0    r
    r-nloptr                  1.0.4                  r3.3.1_2    r
    r-nnet                    7.3_12                 r3.3.1_0    r
    r-openssl                 0.9.4                  r3.3.1_0    r
    r-pbdzmq                  0.2_3                  r3.3.1_0    r
    r-pbkrtest                0.4_6                  r3.3.1_0    r
    r-plyr                    1.8.4                  r3.3.1_0    r
    r-pryr                    0.1.2                  r3.3.1_0    r
    r-quantmod                0.4_5                  r3.3.1_2    r
    r-quantreg                5.26                   r3.3.1_0    r
    r-r6                      2.1.2                  r3.3.1_0    r
    r-randomforest            4.6_12                 r3.3.1_0    r
    r-rbokeh                  0.4.2                  r3.3.1_0    r
    r-rcolorbrewer            1.1_2                  r3.3.1_2    r
    r-rcpp                    0.12.5                 r3.3.1_0    r
    r-rcppeigen               0.3.2.8.1              r3.3.1_0    r
    r-recommended             3.3.1                  r3.3.1_0    r
    r-repr                    0.7                    r3.3.1_0    r
    r-reshape2                1.4.1                  r3.3.1_2    r
    r-rmarkdown               0.9.6                  r3.3.1_0    r
    r-rpart                   4.1_10                 r3.3.1_0    r
    r-scales                  0.4.0                  r3.3.1_0    r
    r-shiny                   0.13.2                 r3.3.1_0    r
    r-sparsem                 1.7                    r3.3.1_0    r
    r-spatial                 7.3_11                 r3.3.1_0    r
    r-stringi                 1.1.1                  r3.3.1_0    r
    r-stringr                 1.0.0                  r3.3.1_0    r
    r-survival                2.39_4                 r3.3.1_0    r
    r-tibble                  1.0                    r3.3.1_0    r
    r-tidyr                   0.5.1                  r3.3.1_0    r
    r-ttr                     0.23_1                 r3.3.1_0    r
    r-uuid                    0.1_2                  r3.3.1_0    r
    r-xtable                  1.8_2                  r3.3.1_0    r
    r-xts                     0.9_7                  r3.3.1_2    r
    r-yaml                    2.1.13                 r3.3.1_2    r
    r-zoo                     1.7_13                 r3.3.1_0    r

我也安装了圣人。但是，它是从虚拟框运行的，目前没有运行。

我不确定，但我想认为GNU GCC、mingw和/或RTools打破了与R的绑定，因为Continuum当前dist中存在一些错误。同时，我不知道R-要点是否与%的使用有关。

魔法在哪里？

Answer 1

显然，rpy2正在接管IPython R魔术扩展的角色。可能存在的问题是，您试图通过pip安装rpy2，而不是在IPython环境中使用miniconda。我从下面网站的另一部分中听说，您需要在conda环境中安装rpy2才能使链接正常工作。它也可能解决您的.dll查找问题。

我的建议(Windows)：

activate ipykernel_py2
conda install -c r rpy2

如果成功的话，试着：

jupyter notebook

在运行jupyter时，重要的是在您的ipykernel_py2环境中。

参考文献：ext rpy2.ipython图像找不到错误

Answer 2

如果您已经完成了pip install rpy2，那么您需要在使用它之前加载扩展：

%load_ext rpy2.ipython
%%R