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

File: whichdb-example-1.py import whichdb filename = "database" result = whichdb.whichdb(filename) if result: print "file created by", result handler = _ _import_ _(result) db = handler.open(filename, "r") print db.keys() else: # cannot identify data base if result is None: print "cannot read database file", filename else: print "cannot identify database file", filename db = None

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