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ScientiaMobile WURFL Cloud Client for Python

The WURFL Cloud Service by ScientiaMobile, Inc., is a cloud-based mobile device detection service that can quickly and accurately detect over 500 capabilities of visiting devices. It can differentiate between portable mobile devices, desktop devices, SmartTVs and any other types of devices that have a web browser.

This is the Python Client for accessing the WURFL Cloud Service, and it requires a free or paid WURFL Cloud account from ScientiaMobile:

Minimum Requirements

  • requests
  • pylibmc


Sign up for WURFL Cloud

First, you must go to and signup for a free or paid WURFL Cloud account (see above). When you've finished creating your account, you must copy your API Key, as it will be needed in the Client.

Install Library:

Via PIP:

$ pip install wurfl-cloud

Via Source:

Download the source code

$ pip install -r requirements.txt
$ python build
$ python install

Creating a configuration file:

The configuration file for the cloud client is a file that contains one JSON object. You must define 4 name/value pairs that represent your configuration. The names that must be defined are api, http, and cache.

Configuration Options:

  • ["api"]["version"] The cloud API version. At this momement the only valid value is "v1"

  • ["api"]["key"] Your API key from Scientiamobile

  • ["api"]["server"] The URI to the cloud server without the trailing slash. At this moment the only valid value is "".

  • ["http"]["timeout"] How long the library should wait for the cloud to respond before timing out. Time in miliseconds.

  • ["http"]["compression"] A boolean that determines whether or not the client tries to use compression when contacting the cloud server.

  • ["cache"]["type"] The type of cache that you wish to use. There are only three valid values "null", "memcached", and "file".

  • ["cache"]["expiration"] When the cache should expire. Specify in seconds

  • ["cache"]["file"] File cache only. Specifies which file to use as a cache.

  • ["cache"]["servers"] Memcached only. A list of memcached servers to use. For example [""]

  • ["cache"]["binary"] Memcached only. A boolean that specifies whether or not you want to use the binary protocol for memcached.

  • ["cache"]["compression"] Memcached only. A boolean that specifies whether or not you want to use compression when using memcached.

Here's a memcached example:

    "api": {
        "version": "v1",
        "key": "your wurfl cloud api key here",
        "server": ""
    "http": {
        "timeout": 1000,
        "compression": true
    "cache": {
               "type": u"memcached",
               "servers": [u""],
               "expiration": 86400,
               "binary": True,
               "compression": True

Here's a file cache example configuration:

    "api": {
        "version": "v1",
        "key": "your wurfl cloud api key here",
        "server": ""
    "http": {
        "timeout": 1000,
        "compression": true
    "cache": {
       "type": "file",
       "file": "cloud_cache.db",
       "expiration": 86400

Example code

Before running the example code, please make sure that WURFL Client Library is properly installed.

Command line demo

$ cd examples/
$ python [config_file]

Replace [config_file] with a config file (e.g. filecache_config.conf) to run the example.

Web browser demo

$ python

Now that the server's running, visit http://localhost:8000/ with your web browser.

A concrete example

import sys

from wurfl_cloud import Cloud
from wurfl_cloud import utils

if len(sys.argv) != 2:
    print "usage:  python [config file]"

# user agent provided manually

ua =  ur'''Mozilla/5.0 (Linux; U; Android 1.5; en-gb; T-Mobile G1
Build/CRB17) AppleWebKit/528.5+ (KHTML, like Gecko) Version/3.1.2 Mobile

# get your configuration somehow, in this case from the command line
# load_config is just a helper function, the resulting config is just a
# python dictionary

config = utils.load_config(sys.argv[1])

# load the cache from the config, get_cache is another helper function

cache = utils.get_cache(config)

# we've got a configuration object and a cache object, let's create an
# object that can query the cloud

cloud = Cloud(config, cache)

    # you can call cloud a couple of ways, below we call the cloud
    # trying an agent, if you only had headers, you'd call it like
    # this:  cloud(headers=headers_dict, capabilities=[....])

    dev1 = cloud(ua, capabilities=["model_name", "pointing_method"])

    # Hopefully, there were no LookupErrors (socket errors, etc...),
    # if there were, the LookupError should contain a helpful message.
    # dev1 is an object (python dict), that contains the data we're
    # looking for, if the cloud gave us errors, we return it, if the
    # error wasn't "total", we'd get a partially complete object for
    # our application, say we misspelled, "model_name" in our query,
    # then "errors" will have a message about it, but we'd still get
    #  info on "pointing_method".
    if not dev1["errors"]: print "dev1"
        print "===="
        print "'%s': %s" % ("model_name",
        print "'%s': %s" % ("pointing_method",
        print "dev1"
        print dev1["errors"]
except LookupError as e:
    print "dev1", "==>", e

    dev2 = cloud(ua, capabilities=["model_named", "pointing_methodd"])
    if not dev2["errors"]:
        # Will never get here those capabilities do not exist
        print "dev2"
        print "===="
        print "model_named", dev2["capabilities"]["model_named"]
        print "pointing_methodd", dev2["capabilities"]["pointing_methodd"]
        print "dev2 error"
        print "=========="
        for x, y in dev2['errors'].items():
            print "'%s': %s" % (x, y)
except LookupError as e:
    print "dev2", "==>", e

2015 ScientiaMobile Incorporated

All Rights Reserved.

NOTICE: All information contained herein is, and remains the property of ScientiaMobile Incorporated and its suppliers, if any. The intellectual and technical concepts contained herein are proprietary to ScientiaMobile Incorporated and its suppliers and may be covered by U.S. and Foreign Patents, patents in process, and are protected by trade secret or copyright law. Dissemination of this information or reproduction of this material is strictly forbidden unless prior written permission is obtained from ScientiaMobile Incorporated.