The dumbdbm Module

The dumbdbm module, shown in Example 10-7, is a very simple database implementation, similar to dbm and friends, but written in pure Python. It uses two files: a binary file (.dat), which contain the data, and a text file (.dir), which contains data descriptors.

Example 10-7. Using the dumbdbm Module

File: dumbdbm-example-1.py

import dumbdbm

db = dumbdbm.open("dumbdbm", "c")
db["first"] = "fear"
db["second"] = "surprise"
db["third"] = "ruthless efficiency"
db["fourth"] = "an almost fanatical devotion to the Pope"
db["fifth"] = "nice red uniforms"
db.close()

db = dumbdbm.open("dumbdbm", "r")
for key in db.keys():
 print repr(key), repr(db[key])

'first' 'fear'
'third' 'ruthless efficiency'
'fifth' 'nice red uniforms'
'second' 'surprise'
'fourth' 'an almost fanatical devotion to the Pope'

Core Modules

More Standard Modules

Threads and Processes

Data Representation

File Formats

Mail and News Message Processing

Network Protocols

Internationalization

Multimedia Modules

Data Storage

Tools and Utilities

Platform-Specific Modules

Implementation Support Modules

Other Modules



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

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