Using our JSON service from Python

Already written modules example from a Well House Consultants training course
More on Already written modules [link]

This example is described in the following article(s):
• JSON from Python - first principles, easy example - [link]
• Cacheing class for Python - using a local SQLite database as a key/value store - [link]

This example references the following resources:
http://api.geonames.org/citiesJSON?north=51.3&south=51.4&east=-2.1&west=-2.2&lang=en&username=[ask
http://www.wellho.net/services/pix.json')

Source code: pyjson Module: Y117

# Using our JSON service from Python

# Here's one for you to try ...
# http://api.geonames.org/citiesJSON?north=51.3&south=51.4&east=-2.1&west=-2.2&lang=en&username=[ask graham]

import json
import urllib2
import time

# Get an object from a service

response = urllib2.urlopen('http://www.wellho.net/services/pix.json')
stuff = response.read()

# We now have it as a serialised stream - in JSON format.
# turn it into an object (type dict)

memory = json.loads(stuff)

# A top level look (so the trainee can see what's happening!)

print " ---- Here is what we have ---- "
for itemname in memory.keys():
        print itemname
print " ------------------------------- "

# or in more detail

toby = time.gmtime(memory["timedat"])
print "This was generated at",memory["timedat"],time.strftime("%c",toby)

if memory["lookfor"]:
        print "Searching only for",memory["lookfor"]
else:
        print "All available records requested"

# And look at the detailed stuff within the response too!

for record in memory["acc"]:
        print record["when"], record["which"]

""" Sample Output

munchkin:yi grahamellis$ python pyjson
---- Here is what we have ----
acc
timedat
lookfor
-------------------------------
This was generated at 1368466827 Mon May 13 17:40:27 2013
Searching only for pix
17 /pix/mmd26.jpg
20 /pix/frometop.jpg
37 /pix/crpavatar.jpg
52 /pix/rstar.jpg
52 /pix/rstar.jpg
54 /pix/coventgarden.jpg
54 /pix/londoneye.jpg
55 /pix/lon1.jpg
56 /pix/bank.jpg
71 /pix/weyches.jpg
78 /pix/thingleymain.jpg
78 /pix/boxtrain.jpg
78 /pix/bath125.jpg
79 /pix/padd125.jpg
79 /pix/thi180_03.jpg
79 /pix/f8chm2x125.jpg
79 /pix/mtof_10.jpg
82 /pix/thi180_03.jpg
munchkin:yi grahamellis$ """

Learn about this subject

This module and example are covered on the following public courses:
* Learning to program in Python
* Python Programming
Also available on on site courses for larger groups

Books covering this topic

Yes. We have over 700 books in our library. Books covering Python are listed here and when you've selected a relevant book we'll link you on to Amazon to order.

Other Examples

This example comes from our "Already written modules" training module. You'll find a description of the topic and some other closely related examples on the "Already written modules" module index page.

Full description of the source code

You can learn more about this example on the training courses listed on this page, on which you'll be given a full set of training notes.

Many other training modules are available for download (for limited use) from our download centre under an Open Training Notes License.

Other resources

• Our Solutions centre provides a number of longer technical articles.
• Our Opentalk forum archive provides a question and answer centre.
• The Horse's mouth provides a daily tip or thought.
• Further resources are available via the resources centre.
• All of these resources can be searched through through our search engine
• And there's a global index here.

Purpose of this website

This is a sample program, class demonstration or answer from a training course. It's main purpose is to provide an after-course service to customers who have attended our public private or on site courses, but the examples are made generally available under conditions described below.

Web site author

This web site is written and maintained by Well House Consultants.

Conditions of use

Past attendees on our training courses are welcome to use individual examples in the course of their programming, but must check the examples they use to ensure that they are suitable for their job. Remember that some of our examples show you how not to do things - check in your notes. Well House Consultants take no responsibility for the suitability of these example programs to customer's needs.

This program is copyright Well House Consultants Ltd. You are forbidden from using it for running your own training courses without our prior written permission. See our page on courseware provision for more details.

Any of our images within this code may NOT be reused on a public URL without our prior permission. For Bona Fide personal use, we will often grant you permission provided that you provide a link back. Commercial use on a website will incur a license fee for each image used - details on request.