- Implements a shelve-like store in SQLite
- Applications incorporating this module can utilize the interfaces of SQLiteShelve class just like they do the Shelve class
- In most ordinary use cases, applications that use the builtin shelve module can switch to SQLiteShelve with the followng:
import sqliteshelve as shelve
d = shelve.open(filename) # opens existing SQLite3 database if it exists. Creates a new one if it does not
d[key] = data # store data at key (overwrites old data if
# using an existing key)
data = d[key] # retrieve a COPY of data at key (raise KeyError if no
# such key)
del d[key] # delete data stored at key (raises KeyError
# if no such key)
flag = d.has_key(key) # true if the key exists
klist = d.keys() # a list of all existing keys
d.close() #commits changes to Sqlite3 shelve store
- data, like in dbm, or BerkeleyDB-based storage libraries, is pickled with cpickle, but pickles with HIGHEST_PROTOCOL.
contains a script called shelve-tool, which is both a useful utility and provides an example for how sqlite-shelve can be used like the shelve module