kaptan 0.6.0

Configuration manager

kaptan
======

|pypi| |docs| |build-status| |coverage| |license|

configuration parser.

installation
------------

.. code-block:: console

$ pip install kaptan

Also available as a package on FreeBSD, Debian, Arch Linux and Slackware.

usage
-----

**supported handlers**

- dict
- json
- yaml
- .ini
- python file

**default (dict) handler**

.. code-block:: python

config = kaptan.Kaptan()
config.import_config({
'environment': 'DEV',
'redis_uri': 'redis://localhost:6379/0',
'debug': False,
'pagination': {
'per_page': 10,
'limit': 20,
}
})

print config.get("pagination.limit")

# output: 20

**json handler**

.. code-block:: python

config = kaptan.Kaptan(handler="json")
config.import_config('{"everything": 42}')

print config.get("everything")
# output: 42

**yaml handler**

.. code-block:: python

config = kaptan.Kaptan(handler="yaml")
config.import_config("""
product:
price:
value: 12.65
currency_list:
1. TL
2. EURO
""")
print config.get("product.price.currency_list.0")
# output: TL

or you can get from directly from the filename:

``config.import_config("configuration.yaml")``

**.ini handler**

config.ini

.. code-block:: ini

[development]
database_uri = mysql://root:123456@localhost/posts

[production]
database_uri = mysql://poor_user:poor_password@localhost/poor_posts

.. code-block:: python

config = kaptan.Kaptan(handler="ini")
config.import_config('config.ini')

print config.get("production.database_uri")
# output: mysql://poor_user:poor_password@localhost/poor_posts

**file handler**

config.py

.. code-block:: python

DATABASE = 'mysql://root:123456@localhost/posts'
DEBUG = False
PAGINATION = {
'per_page': 10,
'limit': 20,
}

.. code-block:: python

config = kaptan.Kaptan(handler="file")
config.import_config('config')

print config.get("DEBUG")
# output: False

exporting configuration
-----------------------

.. code-block:: python

config = kaptan.Kaptan(handler="file")
config.import_config({
'environment': 'DEV',
'redis_uri': 'redis://localhost:6379/0',
'debug': False,
'pagination': {
'per_page': 10,
'limit': 20,
}
})

print config.export("yaml")

**output**:

.. code-block:: yaml

debug: false
environment: DEV
pagination: {limit: 20, per_page: 10}
redis_uri: redis://localhost:6379/0

``print config.export("json")``

outputs unindented json. ``.export`` accepts kwargs which pass into
`json.dumps`.

.. _json.dumps: http://docs.python.org/2/library/json.html#json.dump

.. code-block:: python

print config.export("json", indent=4)

**output**:

.. code-block:: json

{
"environment": "DEV",
"debug": false,
"pagination": {
"per_page": 10,
"limit": 20
},
"redis_uri": "redis://localhost:6379/0"
}

``config.export('yaml')`` also supports the `kwargs for pyyaml`_.

.. _kwargs for pyyaml: http://pyyaml.org/wiki/PyYAMLDocumentation#Dumper

New in Version 0.5.7: ``config.export('yaml', safe=True)`` will use ``.safe_dump``.

cli
---

exporting (defaults to json)

.. code-block:: console

$ echo "environment: DEV" > config.yaml
$ kaptan config.yaml --export json > config.json
$ cat config.json
{"environment": "DEV"}

getting a value

.. code-block:: console

$ kaptan config.yaml --key environment
DEV

specifying the handler

.. code-block:: console

$ mv config.yaml config.settings
$ kaptan config.settings:yaml --export json
{"environment": "DEV"}

config from stdin

.. code-block:: console

$ echo '{"source": "stdin"}' | kaptan -
{"source": "stdin"}
$ echo 'source: stdin' | kaptan -:yaml
{"source": "stdin"}

merging configs

.. code-block:: console

$ echo "environment: PROD" > config.settings
$ echo '{"source": "stdin"}' | kaptan - config.json config.settings:yaml
{"environment": "PROD", "source": "stdin"}

setting default handler

.. code-block:: console

$ echo "source: stdin" | kaptan --handler yaml - config.settings
{"environment": "PROD", "source": "stdin"}

writing json with yaml

.. code-block:: console

$ kaptan -:yaml -e json
<type yaml here>
<Ctrl + D>
<get json here>

running tests
-------------

with ``py.test``:

.. code-block:: console

$ py.test

contributors
------------

- `Cenk Altı <http://github.com/cenkalti>`_
- `Wesley Bitter <http://github.com/Wessie>`_
- `Mark Steve <http://github.com/marksteve>`_
- `Tony Narlock <http://github.com/tony>`_
- `Berker Peksag <http://github.com/berkerpeksag>`_
- `Pradyun S. Gedam <https://github.com/pradyunsg>`_

see more at https://github.com/emre/kaptan/graphs/contributors.

.. |pypi| image:: https://img.shields.io/pypi/v/kaptan.svg
:alt: Python Package
:target: http://badge.fury.io/py/kaptan

.. |build-status| image:: https://github.com/emre/kaptan/actions/workflows/tests.yml/badge.svg
:alt: Build Status
:target: https://github.com/emre/kaptan/actions/workflows/tests.yml

.. |coverage| image:: https://codecov.io/gh/emre/kaptan/branch/master/graph/badge.svg
:alt: Code Coverage
:target: https://codecov.io/gh/emre/kaptan

.. |license| image:: https://img.shields.io/github/license/emre/kaptan.svg
:alt: License

.. |docs| image:: https://readthedocs.org/projects/kaptan/badge/?version=latest
:alt: Documentation Status
:scale: 100%
:target: https://readthedocs.org/projects/kaptan/