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Fix compatibility for earlier versions of Python (than 2.3), which

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doesn't have UserDict.DictMixin.
This commit is contained in:
Barry Warsaw 2003-02-08 03:18:58 +00:00
parent 07534a607b
commit 9914227caa
2 changed files with 15 additions and 5 deletions
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13
Lib/bsddb/dbshelve.py
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@ -30,7 +30,11 @@ storage.
#------------------------------------------------------------------------
import cPickle
from UserDict import DictMixin
try:
from UserDict import DictMixin
except ImportError:
# DictMixin is new in Python 2.3
class DictMixin: pass
try:
# For Python 2.3
from bsddb import db
@ -77,8 +81,7 @@ def open(filename, flags=db.DB_CREATE, mode=0660, filetype=db.DB_HASH,
#---------------------------------------------------------------------------
class DBShelf(DictMixin):
"""
A shelf to hold pickled objects, built upon a bsddb DB object. It
"""A shelf to hold pickled objects, built upon a bsddb DB object. It
automatically pickles/unpickles data objects going to/from the DB.
"""
def __init__(self, dbenv=None):
@ -91,7 +94,9 @@ class DBShelf(DictMixin):
def __getattr__(self, name):
"""Many methods we can just pass through to the DB object. (See below)"""
"""Many methods we can just pass through to the DB object.
(See below)
"""
return getattr(self.db, name)