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Python replacement for java.util.Properties.

Project description

About

This is a “fork” of the “python replacement for java.util.Properties” recipe on ASPN: <http://code.activestate.com/recipes/496795/> and uploaded by Anand Balachandran Pillai.

The project is primarily maintained by Jesse Noller.

License

As with all ASPN recipes not otherwise licensed, the original recipe is under the MIT License. For more information, see the ASPN terms of service here:

<http://code.activestate.com/help/terms/>

This project continues with the MIT License. No sense in changing it.

What this is

This module is designed to be a python equivalent to the java.util.Properties class. Currently, the basic input/output methods are supported, and there are plans to add the XML input/output methods found in J2SE 5.0.

Fundamentally, this module is designed so that users can easily parse and manipulate Java Properties files - that’s it. There’s a fair number of us pythonistas who work in multi-language shops, and constantly writing your own parsing mechanism is just painful. Not to mention Java guys are notoriously unwilling to use anything which is cross-language for configuration, unless it’s XML, which is a form of self-punishment. :)

Plans

Here is a rough plan of features:

  • Keep/maintain blank lines and comments found in the original file
  • Make the module compatible with the new methods in J2SE 5.0
  • Switch to/add python property access rather than direct dictionary get/set
  • Add unit tests
  • Add unicode support
  • When-Pigs-Fly: If running within Jython, switch to java.util.Properties under the hood
  • Coercion/conversion to python types for values

Usage

This is the easy part:

from pyjavaproperties import Properties
p = Properties()
p.load(open('test2.properties'))
p.list()
print p
print p.items()
print p['name3']
p['name3'] = 'changed = value'
print p['name3']
p['new key'] = 'new value'
p.store(open('test2.properties','w'))

See also the Properties.list() method, which will return an iterator over the property keys

Changes & News

0.2:
  • Added an internal list (self._keyorder) to keep an ordered index of keys as they are encountered, so the file can we written-back out in the same order. Keys that are added which were not part of the original file are simply appended to the index.
0.1:
  • Initial release/fork.
  • Added setup/packaging and doc
  • added in {foo} style references for previous properties, thanks to N B on ASPN.

Project details


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