@@ -12,6 +12,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
+import functools
import re
import uuid
@@ -64,6 +65,7 @@ def returnUnchanged(x):
return x
+@functools.total_ordering
class Atom(object):
def __init__(self, type_, value=None):
self.type = type_
@@ -72,6 +74,16 @@ class Atom(object):
else:
self.value = type_.default_atom()
+ def __eq__(self, other):
+ if not isinstance(other, Atom) or self.type != other.type:
+ return NotImplemented
+ return True if self.value == other.value else False
+
+ def __lt__(self, other):
+ if not isinstance(other, Atom) or self.type != other.type:
+ return NotImplemented
+ return True if self.value < other.value else False
+
def __cmp__(self, other):
if not isinstance(other, Atom) or self.type != other.type:
return NotImplemented
@@ -256,11 +268,22 @@ class Atom(object):
return Atom(t, x)
+@functools.total_ordering
class Datum(object):
def __init__(self, type_, values={}):
self.type = type_
self.values = values
+ def __eq__(self, other):
+ if not isinstance(other, Datum):
+ return NotImplemented
+ return True if self.values == other.values else False
+
+ def __lt__(self, other):
+ if not isinstance(other, Datum):
+ return NotImplemented
+ return True if self.values < other.values else False
+
def __cmp__(self, other):
if not isinstance(other, Datum):
return NotImplemented
@@ -12,6 +12,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
+import functools
import uuid
import six
@@ -504,6 +505,7 @@ def _row_to_uuid(value):
return value
+@functools.total_ordering
class Row(object):
"""A row within an IDL.
@@ -572,6 +574,19 @@ class Row(object):
# in the dictionary are all None.
self.__dict__["_prereqs"] = {}
+ def __lt__(self, other):
+ if not isinstance(other, Row):
+ return NotImplemented
+ return bool(self.__dict__['uuid'] < other.__dict__['uuid'])
+
+ def __eq__(self, other):
+ if not isinstance(other, Row):
+ return NotImplemented
+ return bool(self.__dict__['uuid'] == other.__dict__['uuid'])
+
+ def __hash__(self):
+ return int(self.__dict__['uuid'])
+
def __getattr__(self, column_name):
assert self._changes is not None
Python 3 no longer supports __cmp__. Instead, we have to implement the "rich comparison" operators. We implement __eq__ and __lt__ and use functools.total_ordering to implement the rest. In one case, no __cmp__ method was provided and instead relied on the default behavior provided in Python 2. We have to implement the comparisons explicitly for Python 3. Signed-off-by: Russell Bryant <russell@ovn.org> --- python/ovs/db/data.py | 23 +++++++++++++++++++++++ python/ovs/db/idl.py | 15 +++++++++++++++ 2 files changed, 38 insertions(+)