[IronPython] Announcing esedb, a dbm interface to the Esent database engine
laurionb at service.exchange.microsoft.com
Mon Jan 12 19:13:11 CET 2009
I've added the esedb module (esedb.zip) to the release page of the ManagedEsent CodePlex project (http://www.codeplex.com/ManagedEsent/Release/ProjectReleases.aspx). This is still under development and I'm interested in comments, feedback and suggestions on how to do things better in Python.
What is Esent?
Esent is the Windows database engine. It is used by the Active Directory and several smaller applications on Windows clients (e.g. Windows Update). The same code is also used by Microsoft Exchange as their database engine. The unmanaged API is documented on MSDN and there is a managed interop layer on code plex.
What is esedb?
The esedb module uses the Esent interop layer to provide a persisted key/data store in a dbm-like way. The zip file contains the managed interop DLL and the Python module. The code uses the esent DLL which is part of Windows. This code will work on Windows XP on up (it won't work on Windows 2000). That does mean that this module will only work on Windows.
>>> x = esedb.open('test.db', mode='n')
>>> x['a'] = 'somedata'
>>> x['b'] = 'somemoredata'
>>> x['c'] = 'deleteme'
>>> del x['c']
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