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Configure Ruby for ExternalEvaluate—Wolfram Documentation

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Configure your system to evaluate external Ruby code.

Information about how to download and install Ruby can be obtained from https://www.ruby-lang.org/en/documentation/installation.

Instructions for installing ZeroMQ on the Mac can be found at https://zeromq.org/download/#osx.

Install the ZeroMQ package for Ruby using the Ruby package management framework, gem:

If the installation was successful, FindExternalEvaluators will find it automatically:

• If you have more than one version of Ruby installed on your machine, you can use RegisterExternalEvaluator to make a specific installation of Ruby the default.

Use ExternalEvaluate with the Ruby installation to evaluate Ruby code:

Alternatively, use a Ruby code cell to evaluate Ruby code:

• If ExternalEvaluate fails, it is likely that the ZMQ package is not installed. Make sure you install the packages with the specific installation of Ruby that you would like to use.

There is an installer for Windows that can be obtained from https://rubyinstaller.org. Information about how to download and install Ruby can be obtained from https://www.ruby-lang.org/en/documentation/installation.

Download and install ZeroMQ from http://wiki.zeromq.org/distro:microsoft-windows.

Rename the file C:\Program Files\ZeroMQ 4.0.4\bin\libzmq-v120-mt-4_0_4.dll to C:\Program Files\ZeroMQ 4.0.4\bin\libzmq.dll.

Add C:\Program Files\ZeroMQ 4.0.4\bin to your PATH environment variable. You will need to restart Mathematica to see the change.

Install the ZeroMQ package for Ruby using the Ruby package management framework, gem:

If the installation was successful, FindExternalEvaluators will find it automatically:

• If you have more than one version of Ruby installed on your machine, you can use RegisterExternalEvaluator to make a specific installation of Ruby the default.

Use ExternalEvaluate with the Ruby installation to evaluate Ruby code:

Alternatively, use a Ruby code cell to evaluate Ruby code:

• If ExternalEvaluate fails, it is likely that the ZMQ package is not installed. Make sure you install the packages with the specific installation of Ruby that you would like to use.

Information about how to download and install Ruby can be obtained from https://www.ruby-lang.org/en/documentation/installation.

Install the ZeroMQ package as described in https://zeromq.org/download/#linux.

Install the ZeroMQ package for Ruby as the current user, invoke the Ruby package management framework, gem:

$ gem --user install ffi-rzmq

To install for all users, do:

$ sudo gem install ffi-rzmq

If the installation was successful, FindExternalEvaluators will find it automatically:

• If you have more than one version of Ruby installed on your machine, you can use RegisterExternalEvaluator to make a specific installation of Ruby the default.

Use ExternalEvaluate with the Ruby installation to evaluate Ruby code:

Alternatively, use a Ruby code cell to evaluate Ruby code:

• If ExternalEvaluate fails, it is likely that the ZMQ package is not installed. Make sure you install the packages with the specific installation of Ruby that you would like to use.

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