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SF #662923

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Add support for the iterator and mapping protocols.
For Py2.3, this was done for shelve, dumbdbm and other mapping objects, but
not for bsddb and dbhash which were inadvertently missed.
This commit is contained in:
Raymond Hettinger 2003-09-12 06:33:37 +00:00
parent 74c8e55f3b
commit deadbf50e4
5 changed files with 56 additions and 16 deletions
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11
Lib/bsddb/__init__.py
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@ -52,8 +52,9 @@ error = db.DBError # So bsddb.error will mean something...
#----------------------------------------------------------------------
import UserDict
class _DBWithCursor:
class _DBWithCursor(UserDict.DictMixin):
"""
A simple wrapper around DB that makes it look like the bsddbobject in
the old module. It uses a cursor as needed to provide DB traversal.
@ -144,6 +145,14 @@ class _DBWithCursor:
self._checkOpen()
return self.db.sync()
def __iter__(self):
try:
yield self.first()[0]
next = self.next
while 1:
yield next()[0]
except _bsddb.DBNotFoundError:
return
#----------------------------------------------------------------------
# Compatibility object factory functions