问题
I'm trying to install rpy2 inside a Watson Studio 'environment':
!pip install rpy2
However, the environments don't appear to have R available:
Collecting rpy2
Downloading https://files.pythonhosted.org/packages/f1/98/c7652cc9d7fc0afce74d2c30a52b9c9ac391713a63d037e4ab8feb56c530/rpy2-2.9.4.tar.gz (194kB)
100% |████████████████████████████████| 204kB 4.4MB/s eta 0:00:01
Complete output from command python setup.py egg_info:
Error: Tried to guess R's HOME but no command 'R' in the PATH.
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /home/dsxuser/.tmp/pip-build-t7_r6q8e/rpy2/
How can I install rpy2 inside a Watson Studio Python 'Enviroment'? Is this possble?
Note: Watson Studio Environments are custom containers, so an answer should only be provided if the answer is known to work on Watson Studio Environments.
回答1:
Use conda instead of pip. It knows how to install the R runtime. But beware, there are many packages that need to be installed...
!conda install rpy2
Fetching package metadata ........... Solving package specifications: .
Package plan for installation in environment /opt/conda/envs/DSX-Python35:
The following NEW packages will be INSTALLED:
_r-mutex: 1.0.0-mro_2
binutils_impl_linux-64: 2.31.1-h6176602_1
binutils_linux-64: 2.31.1-h6176602_3
fribidi: 1.0.5-h7b6447c_0
gcc_impl_linux-64: 7.3.0-habb00fd_1
gcc_linux-64: 7.3.0-h553295d_3
gfortran_impl_linux-64: 7.3.0-hdf63c60_1
gfortran_linux-64: 7.3.0-h553295d_3
gxx_impl_linux-64: 7.3.0-hdf63c60_1
gxx_linux-64: 7.3.0-h553295d_3
kiwisolver: 1.0.1-py35hf484d3e_0
libcurl: 7.61.1-heec0ca6_0
libuuid: 1.0.3-h1bed415_2
make: 4.2.1-h1bed415_1
mro-base: 3.5.1-3
mro-base_impl: 3.5.1-h9a62091_0
r-assertthat: 0.2.0-mro351hf348343_0
r-bh: 1.66.0_1-mro351hf348343_0
r-bindr: 0.1.1-mro351hf348343_0
r-bindrcpp: 0.2.2-mro351hebc1506_0
r-bit: 1.1_14-mro351hd10c6a6_0
r-bit64: 0.9_7-mro351hd10c6a6_0
r-blob: 1.1.1-mro351hf348343_0
r-cli: 1.0.0-mro351hf348343_0
r-crayon: 1.3.4-mro351hf348343_0
r-dbi: 1.0.0-mro351hf348343_0
r-dbplyr: 1.2.2-mro351hf348343_0
r-digest: 0.6.15-mro351hd10c6a6_0
r-dplyr: 0.7.6-mro351hebc1506_0
r-fansi: 0.2.3-mro351hd10c6a6_0
r-glue: 1.3.0-mro351hd10c6a6_0
r-magrittr: 1.5-mro351hf348343_0
r-memoise: 1.1.0-mro351hf348343_0
r-pillar: 1.3.0-mro351hf348343_0
r-pkgconfig: 2.0.1-mro351hf348343_0
r-plogr: 0.2.0-mro351hf348343_0
r-prettyunits: 1.0.2-mro351hf348343_0
r-purrr: 0.2.5-mro351hd10c6a6_0
r-r6: 2.2.2-mro351hf348343_0
r-rcpp: 0.12.18-mro351hebc1506_0
r-revoutils: 11.0.0-mro351_0
r-revoutilsmath: 11.0.0-mro351_0
r-rlang: 0.2.1-mro351hd10c6a6_0
r-rsqlite: 2.1.1-mro351hebc1506_0
r-tibble: 1.4.2-mro351hd10c6a6_0
r-tidyselect: 0.2.4-mro351hebc1506_0
r-utf8: 1.1.4-mro351hd10c6a6_0
rpy2: 2.9.4-py35mro351h6853232_0
The following packages will be UPDATED:
cairo: 1.14.12-h77bcde2_0 --> 1.14.12-h8948797_3
curl: 7.55.1-h78862de_4 --> 7.61.1-hbc83047_0
dbus: 1.10.22-h3b5a359_0 --> 1.13.2-h714fa37_1
fontconfig: 2.12.4-h88586e7_1 --> 2.13.0-h9420a91_0
freetype: 2.8-hab7d2ae_1 --> 2.9.1-h8a8886c_1
glib: 2.53.6-h5d9569c_2 --> 2.56.2-hd408876_0
graphite2: 1.3.10-hf63cedd_1 --> 1.3.12-h23475e2_2
graphviz: 2.40.1-h25d223c_0 --> 2.40.1-h21bd128_2
gst-plugins-base: 1.12.2-he3457e5_0 --> 1.14.0-hbbd80ab_1
gstreamer: 1.12.2-h4f93127_0 --> 1.14.0-hb453b48_1
harfbuzz: 1.7.4-hc5b324e_0 --> 1.8.8-hffaf4a1_0
libgcc-ng: 7.2.0-h7cc24e2_2 --> 8.2.0-hdf63c60_1
libgfortran-ng: 7.2.0-h9f7466a_2 --> 7.3.0-hdf63c60_0
libstdcxx-ng: 7.2.0-h7a57d05_2 --> 8.2.0-hdf63c60_1
libxcb: 1.12-hcd93eb1_4 --> 1.13-h1bed415_1
libxml2: 2.9.4-h6b072ca_5 --> 2.9.8-h26e45fe_1
matplotlib: 2.1.0-py35h2cbf27e_0 --> 2.2.3-py35hb69df0a_0
pango: 1.41.0-hd475d92_0 --> 1.42.4-h049681c_0
pcre: 8.41-hc27e229_1 --> 8.42-h439df22_0
pillow: 4.2.1-py35h03abc04_0 --> 5.2.0-py35heded4f4_0
pycurl: 7.43.0-py35h7a9665c_3 --> 7.43.0.2-py35hb7f436b_0
pyqt: 5.6.0-py35h0e41ada_5 --> 5.9.2-py35h05f1152_2
qt: 5.6.2-h974d657_12 --> 5.9.6-h8703b6f_2
sip: 4.18.1-py35h9eaea60_2 --> 4.19.8-py35hf484d3e_0
xz: 5.2.3-h55aa19d_2 --> 5.2.4-h14c3975_4
来源：https://stackoverflow.com/questions/52716328/issue-installing-rpy2-inside-watson-studio-python-environment