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ActivePython 2.4

Python Documentation

Library Reference

7. Optional Operating System Services

7.1 signal -- Set handlers for asynchronous events

7.2 socket -- Low-level networking interface

7.3 select -- Waiting for I/O completion

7.4 thread -- Multiple threads of control

7.5 threading -- Higher-level threading interface

7.6 dummy thread -- Drop-in replacement for the thread module

7.7 dummy threading -- Drop-in replacement for the threading module

7.8 Queue -- A synchronized queue class

7.9 mmap -- Memory-mapped file support

7.10 anydbm -- Generic access to DBM-style databases

7.11 dbhash -- DBM-style interface to the BSD database library

7.12 whichdb -- Guess which DBM module created a database

7.13 bsddb -- Interface to Berkeley DB library

7.14 dumbdbm -- Portable DBM implementation

7.15 zlib -- Compression compatible with gzip

7.16 gzip -- Support for gzip files

7.17 bz2 -- Compression compatible with bzip2

7.18 zipfile -- Work with ZIP archives

7.19 tarfile -- Read and write tar archive files

7.20 readline -- GNU readline interface

7.21 rlcompleter -- Completion function for GNU readline

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7.12 `whichdb` -- Guess which DBM module created a database

The single function in this module attempts to guess which of the several simple database modules available-dbm, gdbm, or dbhash-should be used to open a given file.

whichdb( filename): Returns one of the following values: None if the file can't be opened because it's unreadable or doesn't exist; the empty string ('') if the file's format can't be guessed; or a string containing the required module name, such as 'dbm' or 'gdbm'.

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