Python360 Install

Python360 Installation

Prerequisites

• RHEL/CentOS or Ubuntu/Debian server

• sudo access

• SSL certificate and private key files

Installation

1. Get the source code

Clone or copy the python360 directory to the server at the default location:

/var/www/pcr360/python360

Then navigate to it:

cd /var/www/pcr360/python360

2. Generate the service file

sudo bash generate_service.sh --cert /path/to/cert.crt --key /path/to/key.key 

Not sure where your certs are? Run:

sudo bash generate_service.sh 

with no arguments — it will display available certificate pairs.

Optional flags:

• --workers N — number of worker processes (default: 16)

• --install-dir /custom/path — override the default install path (/opt/python360)

• --os debian|redhat — force a specific OS if auto-detection fails

3. Install the service

   sudo bash install_service.sh
   

4. Update PCR-360 INI constants

   constants.PYTHON360_CERT_PATH = '/path/to/key.key'
   constants.PYTHON360_KEY_PATH = '/path/to/cert.crt'
   

5. Verify the service is running

   sudo systemctl status python360
   

Common Commands

sudo systemctl start python360
sudo systemctl stop python360
sudo systemctl restart python360

Troubleshooting

EACCES permission error (typically SELinux on RHEL):

sudo setsebool -P httpd_can_network_connect 1

Not Enough Space in /tmp During Installation

Why this happens

Many servers mount /tmp as a tmpfs filesystem backed by RAM, which is often only 1–2 GB. The Python360 installation downloads large packages (PyTorch, TensorFlow, etc.) that can exceed 1.5 GB in temp/cache files alone. When pip uses /tmp for extraction and staging, the install failswith:

OSError: [Errno 28] No space left on device

How to fix it

Use the --tmp-dir and/or --pip-cache-dir flags to redirect pip's working files to a partition with more space (typically the root partition):

Use built-in defaults (/opt/python360/tmp and /opt/python360/.pip-cache)

sudo bash install_service.sh --tmp-dir --pip-cache-dir

Or specify custom paths on a partition with sufficient space

sudo bash install_service.sh --tmp-dir /var/tmp/python360 --pip-cache-dir /var/tmp/python360-cache

Both directories are created automatically and deleted when the installation completes.

Check available space before installing

df -h /tmp      # Check tmpfs space
df -h /opt      # Check target partition space (needs ~3 GB free)

If /opt is also limited, point to whichever mounted partition has the most free space.