getconf, a versatile configuration lib for Python projects
Project description
The getconf project provides simple configuration helpers for Python project.
It aims at unifying configuration setup across development and production systems, respecting the standard procedures in each system:
Allow userspace configuration on development systems
Allow multiple different configurations for continuous integration systems
Use standard configuration space in /etc on traditional production servers
Handle environment-based configuration for cloud-based platforms
getconf supports Python 2.6, 2.7, 3.3, and is distributed under the two-clause BSD licence.
Links
Package on PyPI: http://pypi.python.org/pypi/getconf/
Source on GitHub: http://github.com/Polyconseil/getconf/
Installation
Intall the package from PyPI, using pip:
pip install getconfOr from GitHub:
$ git clone git://github.com/Polyconseil/getconfIntroduction
All configuration values are accessed through getconf.ConfigGetter object:
import getconf
config = getconf.ConfigGetter('fubar', ['/etc/fubar/settings.ini', './local_settings.ini'])The above line declares:
Use the fubar namespace (mostly used for environment-based configuration, as a prefix for environment variables)
Look, in turn, at /etc/fubar/settings.ini (for production) and ./local_settings.ini (for development)
Once the getconf.ConfigGetter has been configured, it can be used to retrieve settings:
debug = config.getbool('debug', False)
db_host = config.get('db.host')
db_port = config.getint('db.port', 5432)
allowed_hosts = config.getlist('django.allowed_hosts', ['*'])All settings have a type (default is text), and accept a default value. They use namespaces for easier reading.
With the above setup, getconf will try to provide db.host by inspecting the following options in order (it stops at the first defined value):
From the environment variable FUBAR_DB_HOST, if defined
If a FUBAR_CONFIG environment variable is defined, from the host key of the [db] section of that file
From the host key in the [db] section of ./local_settings.ini
From the host key in the [db] section of /etc/fubar/settings.ini
From the default provided value
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