The whichdb Module

The whichdb module can be used to figure out which database handler was used for a given database file, as shown in Example 10-2.

Example 10-2. Using the whichdb Module


import whichdb

filename = "database"

result = whichdb.whichdb(filename)

if result:
 print "file created by", result
 handler = _ _import_ _(result)
 db =, "r")
 print db.keys()
 # cannot identify data base
 if result is None:
 print "cannot read database file", filename
 print "cannot identify database file", filename
 db = None

Example 10-2 uses the _ _import_ _ function to import a module with the given name.

Core Modules

More Standard Modules

Threads and Processes

Data Representation

File Formats

Mail and News Message Processing

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Data Storage

Tools and Utilities

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Python Standard Library
Python Standard Library (Nutshell Handbooks) with
ISBN: 0596000960
EAN: 2147483647
Year: 2000
Pages: 252
Authors: Fredrik Lundh © 2008-2020.
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