1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
# --------------------------------------------------------------------------------------
# Copyright (c) 2018-2024, Nucleic Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file LICENSE, distributed with this software.
# --------------------------------------------------------------------------------------
"""Example demonstrating the use of metadata to filter members."""
import sys
from atom.api import Atom, Int, Str
def get_last_name():
"""Return a last name based on the system byteorder."""
return sys.byteorder.capitalize()
class Person(Atom):
"""A simple class representing a person object."""
first_name = Str("Bob").tag(pref=True)
age = Int(default=40).tag(pref=False)
last_name = Str()
def _default_last_name(self):
return get_last_name()
if __name__ == "__main__":
bob = Person()
for name, member in bob.members().items():
if member.metadata and "pref" in member.metadata:
print(name, member.metadata["pref"])
|
