Skip to main content

restricted dict

Project description

Providing extracted dict (subclass of collections.UserDict).

how to use

(todo: description)

models.py

from kanagata import RestrictionBuilder

# group: name, users
# user: name, age, Option[skills], Option[school]
# skill: name
with RestrictionBuilder() as b:
    with b.define_dict("Group") as group:
        group.add_member("name", required=True)
        group.add_list("users", "User", required=True)

    with b.define_dict("User") as user:
        user.add_member("name", required=True)
        user.add_member("age", required=True)
        user.add_dict("school", "School", required=False)
        user.add_list("skills", "Skill", required=False)

    with b.define_dict("Skill") as skill:
        skill.add_member("name", required=True)

    with b.define_dict("School") as school:
        school.add_member("name")
        school.add_list("groups", "Group", required=True)
from models import User

# user can have only name, age, skills. (skills is optional)

user = User(name="foo", age=20, skills=[])
print(user)  # {'name': 'foo', 'age': 20, 'skills': []}

try:
    user2 = User(name="bar")
    # ValueError: User: required fields {'age'} are not found
except ValueError:
    pass

try:
    user["xxx"] = "bar"
    # ValueError: User: unsupported field 'xxx', field members=['name', 'age', 'school', 'skills']
except ValueError:
    pass

# user.skills can have only name.

user["skills"].append({"name": "math"})
print(user)  # {'skills': [{'name': 'math'}], 'age': 20, 'name': 'foo'}

try:
    user["skills"].append({})
    # ValueError: Skill: required fields {'name'} are not found
except ValueError:
    pass

0.0.1

  • default option support

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for kanagata, version 0.0.1
Filename, size File type Python version Upload date Hashes
Filename, size kanagata-0.0.1-py2.py3-none-any.whl (6.9 kB) File type Wheel Python version 3.5 Upload date Hashes View
Filename, size kanagata-0.0.1.tar.gz (4.3 kB) File type Source Python version None Upload date Hashes View

Supported by

Pingdom Pingdom Monitoring Google Google Object Storage and Download Analytics Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page