def __init__(
self,
db_name,
db_ext=None,
read_only=False,
database_default_func=None,
clear=False,
stringify_keys=False,
**kwargs
):
MemDict.__init__(
self,
db_name,
read_only=read_only,
stringify_keys=stringify_keys,
database_default_func=database_default_func,
**kwargs
)
self._db_ext = db_ext if db_ext != None else get_default_file_ext()
abs_dir_path = os.path.dirname(os.path.abspath(db_name))
dir_present = os.path.exists(abs_dir_path)
if not dir_present:
try:
os.makedirs(abs_dir_path)
except OSError:
pass
self._db_full_path = ".".join((os.path.abspath(db_name), self._db_ext))
file_present = os.path.exists(self._db_full_path)
self.flag = "n" if clear else "r" if read_only and file_present else "c"
self.closed = False
self._db_file = shelve.open(self._db_full_path, flag=self.flag)
if not clear:
# Copy all elements into memory dict
for key in self._db_file:
self._database[key] = self._db_file[key]
# We're done with the file for now
self._db_file.close()
def _add_init_kwargs(self, kwargs):
MemDict._add_init_kwargs(self, kwargs)
kwargs["db_name"] = self._db_name
kwargs["db_ext"] = self._db_ext
