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"""
PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
--------------------------------------------
1. This LICENSE AGREEMENT is between the Python Software Foundation
("PSF"), and the Individual or Organization ("Licensee") accessing and
otherwise using this software ("Python") in source or binary form and
its associated documentation.
2. Subject to the terms and conditions of this License Agreement, PSF
hereby grants Licensee a nonexclusive, royalty-free, world-wide
license to reproduce, analyze, test, perform and/or display publicly,
prepare derivative works, distribute, and otherwise use Python
alone or in any derivative version, provided, however, that PSF's
License Agreement and PSF's notice of copyright, i.e., "Copyright (c)
2001, 2002, 2003, 2004 Python Software Foundation; All Rights Reserved"
are retained in Python alone or in any derivative version prepared
by Licensee.
3. In the event Licensee prepares a derivative work that is based on
or incorporates Python or any part thereof, and wants to make
the derivative work available to others as provided herein, then
Licensee hereby agrees to include in any such work a brief summary of
the changes made to Python.
4. PSF is making Python available to Licensee on an "AS IS"
basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
INFRINGE ANY THIRD PARTY RIGHTS.
5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
6. This License Agreement will automatically terminate upon a material
breach of its terms and conditions.
7. Nothing in this License Agreement shall be deemed to create any
relationship of agency, partnership, or joint venture between PSF and
Licensee. This License Agreement does not grant permission to use PSF
trademarks or trade name in a trademark sense to endorse or promote
products or services of Licensee, or any third party.
8. By copying, installing or otherwise using Python, Licensee
agrees to be bound by the terms and conditions of this License
Agreement.
"""
#!/usr/bin/env python
"""
Synopsis: %(prog)s [-h|-b|-g|-r|-a|-d] [ picklefile ] dbfile
Read the given picklefile as a series of key/value pairs and write to a new
database. If the database already exists, any contents are deleted. The
optional flags indicate the type of the output database:
-a - open using anydbm
-b - open as bsddb btree file
-d - open as dbm file
-g - open as gdbm file
-h - open as bsddb hash file
-r - open as bsddb recno file
The default is hash. If a pickle file is named it is opened for read
access. If no pickle file is named, the pickle input is read from standard
input.
Note that recno databases can only contain integer keys, so you can't dump a
hash or btree database using db2pickle.py and reconstitute it to a recno
database with %(prog)s unless your keys are integers.
"""
import getopt
try:
import bsddb
except ImportError:
bsddb = None
try:
import dbm
except ImportError:
dbm = None
try:
import gdbm
except ImportError:
gdbm = None
try:
import anydbm
except ImportError:
anydbm = None
import sys
try:
import cPickle as pickle
except ImportError:
import pickle
prog = sys.argv[0]
def usage():
sys.stderr.write(__doc__ % globals())
def main(args):
try:
opts, args = getopt.getopt(args, "hbrdag",
["hash", "btree", "recno", "dbm", "anydbm",
"gdbm"])
except getopt.error:
usage()
return 1
if len(args) == 0 or len(args) > 2:
usage()
return 1
elif len(args) == 1:
pfile = sys.stdin
dbfile = args[0]
else:
try:
pfile = open(args[0], 'rb')
except IOError:
sys.stderr.write("Unable to open %s\n" % args[0])
return 1
dbfile = args[1]
dbopen = None
for opt, arg in opts:
if opt in ("-h", "--hash"):
try:
dbopen = bsddb.hashopen
except AttributeError:
sys.stderr.write("bsddb module unavailable.\n")
return 1
elif opt in ("-b", "--btree"):
try:
dbopen = bsddb.btopen
except AttributeError:
sys.stderr.write("bsddb module unavailable.\n")
return 1
elif opt in ("-r", "--recno"):
try:
dbopen = bsddb.rnopen
except AttributeError:
sys.stderr.write("bsddb module unavailable.\n")
return 1
elif opt in ("-a", "--anydbm"):
try:
dbopen = anydbm.open
except AttributeError:
sys.stderr.write("anydbm module unavailable.\n")
return 1
elif opt in ("-g", "--gdbm"):
try:
dbopen = gdbm.open
except AttributeError:
sys.stderr.write("gdbm module unavailable.\n")
return 1
elif opt in ("-d", "--dbm"):
try:
dbopen = dbm.open
except AttributeError:
sys.stderr.write("dbm module unavailable.\n")
return 1
if dbopen is None:
if bsddb is None:
sys.stderr.write("bsddb module unavailable - ")
sys.stderr.write("must specify dbtype.\n")
return 1
else:
dbopen = bsddb.hashopen
try:
db = dbopen(dbfile, 'c')
except bsddb.error:
sys.stderr.write("Unable to open %s. " % dbfile)
sys.stderr.write("Check for format or version mismatch.\n")
return 1
else:
for k in db.keys():
del db[k]
while 1:
try:
(key, val) = pickle.load(pfile)
except EOFError:
break
db[key] = val
db.close()
pfile.close()
return 0
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))
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