dbm

Generic interface to all dbm clones.

Use

        import dbm
        d = dbm.open(file, 'w', 0o666)

The returned object is a dbm.sqlite3, dbm.gnu, dbm.ndbm or dbm.dumb database object, dependent on the
type of database being opened (determined by the whichdb function) in the case
of an existing dbm. If the dbm does not exist and the create or new flag ('c'
or 'n') was specified, the dbm type will be determined by the availability of
the modules (tested in the above order).

It has the following interface (key and data are strings):

        d[key] = data   # store data at key (may override data at
                        # existing key)
        data = d[key]   # retrieve data at key (raise KeyError if no
                        # such key)
        del d[key]      # delete data stored at key (raises KeyError
                        # if no such key)
        flag = key in d # true if the key exists
        list = d.keys() # return a list of all existing keys (slow!)

Future versions may change the order in which implementations are
tested for existence, and add interfaces to other dbm-like
implementations.

Symbols in dbm

e

error: A tuple containing the exceptions that can be raised by each of the supported modules, with a unique exception also named dbm.error as the first item — the latter is used when dbm.error is raised.

o

open: Open or create database at path given by *file*.

w

whichdb: Guess which db package to use to open a db file.

PyDocs

Data Persistence

Data Persistence

All modules

dbm

Symbols in dbm

e

o

w