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# 3. Installation

This section describes the procedure to install the Python DCPS API on a Linux or Windows platform.

## 3.1. System Requirements

Operating System: Linux or Windows

## 3.2. Dependencies

> Linux
>   - Python3 version 3.4.0 or later
>   - pip3 (package “python3-pip” on most linux package managers)
>   - GCC 4.8 or later
> Windows
>   - Python version 3.5.0
>   - pip (usually already included in Python for Windows)
>   - Visual Studio 14 (2015) C compiler or later
> Python modules
>   - Cython version 0.27 or later (install using “pip3 install Cython”)

## 3.3. OpenSplice (OSPL) and Python DCPS API Installation

Steps:

1. Install OSPL. The Python DCPS API is included in this installer.
2. Setup OSPL license. Copy the license.lic file into the appropriate license directory.

> /INSTALLDIR/Vortex_v2/license

3. Python DCPS API files are contained in a tools/python folder

> Example: $OSPL_HOME/tools/python

## 3.4. Python DCPS API Setup

### 3.4.1. Install Python DCPS API package from python wheel

In certain Vortex OpenSplice installs, the python api is bundled as a python wheel file in the $OSPL_HOME/tools/python directory. This way it avoids needing a native compiler and Cython prerequisites before installation.

Simply install using pip. For example, executing the command will install the wheel package, which is targeted for python 3.4 64-bit Linux:

> $pip3 install dds-6.9.0-cp34-cp34m-linux_x86_64.whl

Or similarly, for python 3.5 64-bit Windows:

> >pip install dds-6.9.0-cp35-cp35m-win_amd64.whl

If the binary wheel package is not present or is not compatible with your python version, then it is preferable to install the api from source.

### 3.4.2. Install Python DCPS API package from source

If the dependencies are satisfied, and the Vortex OpenSplice environment is set (OSPL_HOME and associated environment variables), then installation is just one command to execute in the $OSPL_HOME/python/src directory:

> $python3 setup.py install

Note

- In either case, installing from wheel or from source may require administrator or superuser privileges if python was installed for all users.

- To check modules are installed correctly try importing the installed modules.

      >>> import dds
      >>> import ddsutil

## 3.5. Examples and Documentation

1. Examples

   > The examples can be found in the following directory:

   > > - $OSPL_HOME/tools/python/examples

2. Python DCPS API Documentation

   > The Python DCPS API can be found in the following directory:

   > > - $OSPL_HOME/tools/python/docs/html

3. Python DCPS User Guide (HTML and PDF)

   > The user guide can be found in the following directories:

   > > - $OSPL_HOME/docs/html
   > > - $OSPL_HOME/docs/pdf

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