Using the Landscape API Python module

Landscape Documentation
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The landscape-api package also has a Python module to use the Landscape API. Once the package is installed, the API class can be imported.

In a similar way as happened with the command-line client, the API methods are slightly mangled here. The method names are converted to lowercase and an underscore (“_”) is used as a word separator. For example, instead of using GetComputers, the method defined in the API class is called get_computers.

Each Python method has documentation explaining its purpose, parameters and types. To see the full list, run:

pydoc landscape_api.base

To get help about a specific method, like get_computers, run:

pydoc landscape_api.base.API.get_computers

Alternatively, the method’s __doc__ attribute can be used, or even the builtin help:

>>> from landscape_api.base import API
>>> print (API.get_computers.__doc__)
Get a list of computers associated with the account.
...
>>> help(API.get_computers)
Help on method get_computers in module landscape_api.base:

get_computers(self, query=u'', limit=1000, offset=0, with_network=False, ...
...

Here is a quick example showing how to list and get information about all computers that have pending security upgrades:

#!/usr/bin/python3
import os, json, sys
from landscape_api.base import API, HTTPError

# change these accordingly
uri = "https://landscape.example.com/api/"
key = "1R3XGCT17NWIXKU5AM5J"
secret = "vYtjUFeNiTJfBdr0oPqKa/QUr8OKXEj8fYOCbquc"
ca = "/home/ubuntu/ca.pem"

api = API(uri, key, secret, ca)
try:
    computers = api.get_computers(query="alert:security-upgrades")
except HTTPError as e:
    print ("\nGot server error:\n"
           "Code: {}\n"
           "Message: {}\n".format(e.code, e.message))
    sys.exit(1)

if len(computers) == 0:
   print ("No computers have pending security upgrades.")
else:
    for computer in computers:
        print ("Id:", computer["id"])
        print ("Title:", computer["title"])
        print ("Hostname:", computer["hostname"])
        print ("Last ping:", computer["last_ping_time"])
        print ("Memory:", computer["total_memory"])
        if computer["reboot_required_flag"]:
            print ("Needs to reboot!")
        print()

Note that API methods will return python objects by default. To return the raw JSON result of the call, the ‘json’ boolean parameter of the API class can be provided:

api = API(uri, key, secret, ca, json=True)