Popular recipes tagged "json"

Convert JSON to PDF with Python and xtopdf (Python)

2014-12-10T18:02:14-08:00

Python recipe 578979 by Vasudev Ram (json, pdfwriter, sys).

This recipe show the basic steps needed to convert JSON input to PDF output, using Python and xtopdf, a PDF creation toolkit. xtopdf is itself written in Pytho, and uses the ReportLab toolkit internally.

We set up some needed values, such as the output PDF file name, the font name and size, the header and footer, and the input lines for the body of the PDF output; all these values are passed in JSON format (in a single dictionary) to a function that uses those values to generate a PDF file with the desired content.

The code is intentionally kept simple so as to require the least amount of code needed to demonstrate the techniques involved. But it can be generalized or extended to more complex situations.

JSON Formatted Logging (Python)

2016-05-27T01:07:42-07:00

Python recipe 580667 by Michael Blan Palmer (json, logging, python).

I have created a package that outputs JSON formatted lines to a log file. It can make use of the standard logging parameters and/or take custom input. The use of JSON in the log file allows for easy filtering and processing.

Configurable JSON Extensions for Python (Python)

2016-05-22T19:00:54-07:00

Python recipe 580664 by Michael Blan Palmer (json, python).

The concept behind the package is to build a single class per type you want to add to json in Python. The new class will have a method for encoding to json and a method for decoding from json. The classes are then loaded into an encoder object and a decoder object that are hooked into the standard json loads and dumps functions.

Validate data easily with JSON Schema (Python)

2015-12-06T21:23:48-08:00

Python recipe 579135 by Vasudev Ram (data, json, jsonschema, python, python2).

This recipe shows how to use the jsonschema Python library, which implements the JSON Schema specification, to easily validate your Python data. It sends good output to stdout and bad output to stderr, for demo purposes.

jsonschema Python library: https://pypi.python.org/pypi/jsonschema

JSON Schema: http://json-schema.org/

dynamically changing encoder (for json) with metaclass (class factory) (Python)

2013-10-24T11:31:44-07:00

Python recipe 578696 by - (class_factory, encode, json, metaclass, metaclasses).

The json.dumps need to be feed with some class (cls =someClass) but what if we want to change the class dynamically? This example can be done by declaring the listOfClasses in class level of course, but the idea is to be changeable. This can be done by the class factory function encoderFacory

easyjson.py - parsing JSON from buffer and from file (Python)

2013-05-27T05:32:07-07:00

Python recipe 578529 by Thomas Lehmann (json, parser). Revision 4.

JSON Parser:

Refering to http://www.json.org/
Just one simple Python file you can integrate where you want to
No imports (very important) -> no dependencies!!!
Should work with really older versions of Python!!!

Todo's:

Doesn't cover full number format
...

Done

Allows string in string (revision 2)
Covers objects in an array (revision 2)
Provides a mechanism to allow other dictionaries (like collections.OrderedDict) (revision 3)
Conversion of numbers to integer or float types (revision 4)

JSON instead of pickle for memcached (Python)

2012-01-10T22:31:36-08:00

Python recipe 578011 by pavel (cache, json, memcache, memcached, pickle).

Standard memcache client uses pickle as a serialization format. It can be handy to use json, especially when another component (e.g. backend) does'n know pickle, but json yes.

JSON pretty printer (Python)

2011-06-28T11:23:13-07:00

Python recipe 577772 by Noufal Ibrahim (json).

Simple script to be used as a shell pipeline to pretty print JSON output. Quite useful when using couchdb with curl.

This is a shell function which uses Python to do all ork.

nicerest: pretty-print JSON output (JavaScript)

2011-01-18T22:59:12-08:00

JavaScript recipe 577549 by Trent Mick (curl, json, node, nodejs, rest). Revision 3.

Save this to "nicerest", chmod +x-it, and pipe your REST API curl calls through this for nicer output. It will notice HTTP headers (curl's -i option) and skips those before attempting to pretty-print the following JSON.

Note: This is currently using node 0.2. I should update for 0.3 changes (I think process.openStdin changed).

Convert XML into JSON (Python dicts and lists structure) (Python)

2011-08-22T13:30:33-07:00

Python recipe 577494 by Nikola (converter, json, xml). Revision 2.

There are many ways to convert a specific XML dialect into JSON for easier consumption by Javascript code. This recipe works for some XML-based data, where the format is not really a document and html tags are used as field placeholders. You can use it as-is, but it is intended to serve as a starting point where you can plug your specific needs.

PyDON - An alternative to XML (Python)

2010-12-24T08:28:15-08:00

Python recipe 577508 by Lost Protocol (configuration, json, xml, xmlrpc). Revision 2.

Many use XML to store configuration data, some use INI files others use Windows Registries and some like JSON. But given the fact that Python is such a powerful language, its easy to create/use such representations. PyDON stands for Python Dictionary Object Notation. It LOOKS similar to JSON but doesn't require you to create any parsers. Plus it can contain Python code which is even better :-).

More on this here > http://lostp.99k.org/files/PyDON.pdf

transform command line arguments to args and kwargs for a method call (Python)

2010-03-21T22:41:42-07:00

Python recipe 577122 by Trent Mick (argv, cli, json). Revision 2.

For many of my Python modules I find it convenient to provide a small if __name__ == "__main__": ... block to be able to call individual methods from the command line. This requires some kind of translation of command-line string arguments to args and kwargs for the method call. This recipe uses a few conventions to do that:

the first argument is the method name
positional args are positional (duh)
"key=value" is a keyword argument
an attempt is made to interpret arguments as JSON to allow specifying types other than string

Javascript - JSON Parser (only for study) (JavaScript)

2010-07-27T19:36:50-07:00

JavaScript recipe 577337 by Danillo Souza (json, parse).

JSON parser for any object in the script.

OBS: Need a way to identify methods.

ExecSql.cgi returning JSON for SQL (Python)

2009-11-28T02:00:30-08:00

Python recipe 576971 by Martchenko (cgi, json, sql).

CGI script getting JSON for SQL request

Convert XML to Dictionary (Python)

2009-10-28T10:42:17-07:00

Python recipe 576940 by Adam M Prost (convert, dict, dictionary, json, simple, xml). Revision 2.

A simple function to convert a headerless XML string into a dictionary using only simplejson and re.