Python (opens new window) is a programming language that lets you work more quickly and integrate your systems more effectively.
# Supported versions
- 3 (opens new window)
- 3.7 (opens new window) (default)
- 3.6 (opens new window)
- 3.5 (opens new window)
# Legacy versions
You can still run these versions with Lando but for all intents and purposes they should be considered deprecated (e.g. YMMV and do not expect a ton of support if you have an issue).
# Patch versions
Not officially supported!
While we allow users to specify patch versions for this service, they are not officially supported, so if you use one, YMMV.
To use a patch version, you can do something as shown below:
services: myservice: type: python:3.5.6
But make sure you use one of the available patch tags (opens new window) for the underlying image we are using.
Here are the configuration options, set to the default values, for this service. If you are unsure about where this goes or what this means, we highly recommend scanning the services documentation to get a good handle on how the magicks work.
services: myservice: type: python:3.7 port: 80 ssl: false command: tail -f /dev/null
# Specifying a command
Note that if you do not define a
command for this service, it will effectively be a "cli" container (e.g. it will not serve or run an application by default but will be available to run
python commands against).
If you want to actually launch a
python application, consider setting the
command to something as shown below:
services: myservice: type: python command: /app/my-server.py
# Setting a port
While we assume your
python service is running on port
80, we recognize that many
python app's also run on port
8000 or otherwise. You can easily change our default to match whatever your app needs.
services: myservice: type: python port: 8000
# Using SSL
Also note that
ssl: true will only generate certs in the default locations. It is up to the user to use the certs and secure port correctly in their application like as in the
python snippet below:
services: myservice: type: python ssl: true port: 443
// Starting HTTPS server httpsd = HTTPServer(('0.0.0.0', 443), myHandler) httpsd.socket = ssl.wrap_socket (httpsd.socket, server_side=True, certfile='/certs/cert.crt', keyfile='/certs/cert.key') print('starting https server...') httpsd.serve_forever()
# Path Considerations
Lando will set the
PATH hierarchy for this service as follows:
[ // Line directly below is your PYTHONUSERBASE '/var/www/.local/bin', '/usr/local/sbin', '/usr/local/bin', '/usr/sbin', '/usr/bin', '/sbin', '/bin', ]
This is useful to note if you are not using absolute paths in any tooling routes and are getting the unexpected version of a particular utility.