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PythonEmbedInR is one of synapser's dependencies. It's an R package that requires C compilation. 

Mac System Dependencies

  • OpenSSL 
  • wget
Notes:

The easiest instruction I found was to use:

brew install wget

This command will install other wget dependencies including openssl. Don't forget to read the output of the brew command and add openssl to PATH in ~/.bash_profile.

Common errors and fixes:

Mac - libcryto.a not found

Repro

There are 2 ways to repro this problem. In Terminal:

  1. clone the repo

  2. run the following commands:

    cd PythonEmbedInR
R CMD build .
R CMD install PythonEmbedInR_0.0.0.tar.gz

  3. error:

    * installing to library ‘/Library/Frameworks/R.framework/Versions/3.5/Resources/library’
* installing *source* package ‘PythonEmbedInR’ ...
./configure: line 32: wget: command not found
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 19.6M  100 19.6M    0     0  19.5M      0  0:00:01  0:00:01 --:--:-- 19.5M
Mac specific configuration
cp: /usr/local/opt/openssl/lib/libcrypto.a: No such file or directory
ERROR: configuration failed for package ‘PythonEmbedInR’
* removing ‘/Library/Frameworks/R.framework/Versions/3.5/Resources/library/PythonEmbedInR’
* restoring previous ‘/Library/Frameworks/R.framework/Versions/3.5/Resources/library/PythonEmbedInR’

In RStudio:

  1. Open PythonEmbedInR project
  2. Click Install and Restart

  3. Error:

    ==> R CMD INSTALL --no-multiarch --with-keep.source PythonEmbedInR

* installing to library ‘/Library/Frameworks/R.framework/Versions/3.5/Resources/library’
* installing *source* package ‘PythonEmbedInR’ ...
./configure: line 32: wget: command not found
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0Failed to download https://www.python.org/ftp/python/3.5.3/Python-3.5.3.tgz
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (77) error setting certificate verify locations:
  CAfile: /Library/Frameworks/R.framework/Versions/3.5/Resources/library/PythonEmbedInR/lib/python3.5/site-packages/pip/_vendor/requests/cacert.pem
  CApath: none
ERROR: configuration failed for package ‘PythonEmbedInR’
* removing ‘/Library/Frameworks/R.framework/Versions/3.5/Resources/library/PythonEmbedInR’
* restoring previous ‘/Library/Frameworks/R.framework/Versions/3.5/Resources/library/PythonEmbedInR’

Exited with status 1.

Fix

Install the Mac System Dependencies listed above.

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