Installing Python on an OpenVMS Computer

To use Python SDK to run CommCell operations, you must install the Python software on the OpenVMS computer.

Prerequisites

The OpenVMS computer must have operating system VSI OpenVMS Version 8.4-1H1 I64 or higher.

Python requires VSI OpenVMS SSL 1.1.1 package to be installed on the computer.
Install Python on the OpenVMS system using the binaries and instructions at Python — VMS Software, Inc.
Run the following command to test Python installation.
```
python --version
```
Install the Python modules for SSL support:
```
python –m pip install pyOpenSSL
```

The Python software is installed on the OpenVMS computer along with the dependent packages.

Install the Python SDK on the OpenVMS computer:

Install the Developer SDK - Python package on the Linux proxy computer. See Preinstallation Checklist for Developer SDK - Python on UNIX.
When the Python SDK installation is complete, the installation program creates the Software_Installation_Directory/pythonsdk directory on the proxy computer.
Run the following commands on the Linux Proxy to transfer the pythonsdk folder to the OpenVMS computer:
```
cd {Software_Installation_Directory}
```
```
sftp system@{OpenVMS_computer_hostname}:/{system-disk-name}/000000
```
- At the Password prompt, enter the system user password
- At the sftp> prompt, type
```
put –r pythonsdk
```
- Once transfer is complete, at the sftp> prompt, type
```
exit
```
Log in to the OpenVMS computer as the system user and run the following commands:
```
set def {system-disk-name}:[PYTHONSDK]
```
```
python setup.py install
```