Python dbm.gnu() Examples

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Example #1
Source File: cmd_dumpdb.py    From doit with MIT License 6 votes vote down vote up 
def dbm_iter(db):
    # try dictionary interface - ok in python2 and dumbdb
    try:
        return db.items()
    except: # pragma: no cover
        pass

    # try firstkey/nextkey - ok for py3 dbm.gnu
    try: # pragma: no cover
        db.firstkey
        def iter_gdbm(db):
            k = db.firstkey()
            while k != None:
                yield k, db[k]
                k = db.nextkey(k)
        return iter_gdbm(db)
    except: # pragma: no cover
        raise InvalidCommand("It seems your DB backend doesn't support "
                             "iterating through all elements")