A loader implementing the PasteDeploy syntax to be used by plaster.
plaster_pastedeploy is a plaster plugin that provides a plaster.Loader that can parse ini files according to the standard set by PasteDeploy. It supports the wsgi plaster protocol, implementing the plaster.protocols.IWSGIProtocol interface.
Applications should use plaster_pastedeploy to load settings from named sections in a configuration source (usually a file).
- Please look at the documentation for plaster on how to integrate this loader into your application.
- Please look at the documentation for PasteDeploy on the specifics of the supported INI file format.
Most applications will want to use plaster.get_loader(uri, protocols=['wsgi']) to get this loader. It then exposes get_wsgi_app, get_wsgi_app_settings, get_wsgi_filter and get_wsgi_server.
import plaster loader = plaster.get_loader('development.ini', protocols=['wsgi']) # to get any section out of the config file settings = loader.get_settings('app:main') # to get settings for a WSGI app app_config = loader.get_wsgi_app_settings() # defaults to main # to get an actual WSGI app app = loader.get_wsgi_app() # defaults to main # to get a filter and compose it with an app filter = loader.get_wsgi_filter('filt') app = filter(app) # to get a WSGI server server = loader.get_wsgi_server() # defaults to main # to start the WSGI server server(app)
Any plaster.PlasterURL options are forwarded as defaults to the loader. Some examples are below:
- Support Python 3.7.
- Depend on pastedeploy >= 2.0 to enforce new behavior when overriding defaults. Default values passed into the loader will now override values in the [DEFAULT] section. See https://github.com/Pylons/plaster_pastedeploy/pull/17
- Change setup_logging to invoke logging.config.fileConfig with disable_existing_loggers=False to avoid disabling any loggers that were imported prior to configuration of the logging system. See https://github.com/Pylons/plaster_pastedeploy/pull/16
- Removed environment variable support entirely for now. The feature requires bugfixes upstream in PasteDeploy which have not been done yet and this was breaking people’s environments so it is gone for now. See https://github.com/Pylons/plaster_pastedeploy/pull/15
- Fix ConfigDict.copy so that it works. See https://github.com/Pylons/plaster_pastedeploy/pull/14
- Disable environment variable support on Python 2. PasteDeploy does not support escaping the contents on Python 2 which means any variable with a value of the format %(foo)s would break the parser. Because this is implicit behavior it was deemed too error prone to support. See https://github.com/Pylons/plaster_pastedeploy/pull/10
- Escape environment variables such that their contents are not subject to interpolation. See https://github.com/Pylons/plaster_pastedeploy/pull/10
- Invoke logging.basicConfig when setup_logging is called and the config file doesn’t contain any logging setup or the URI is using the egg: protocol. See https://github.com/Pylons/plaster_pastedeploy/pull/11
Fix get_settings for an arbitrary section to follow the same rules as PasteDeploy with regards to the handling of defaults. The goal of this package is to be compliant with PasteDeploy’s format for all sections in the file such that there are no surprising format changes in various sections.
Supported added for set default_foo = bar and get foo = default_foo syntax to override a default value and to pull a default value into the settings, respectively. In the above example the value foo = bar would be returned. Any other defaults not pulled into the section via either interpolation or the get syntax will be ignored.
Inject environment variables into the defaults automatically. These will be available for interpolation as ENV_<foo>. For example if environment variable APP_DEBUG=true then %(ENV_APP_DEBUG)s will work within the ini file. See https://github.com/Pylons/plaster_pastedeploy/pull/7
get_settings and get_wsgi_app_settings both return only the local config now. However, the returned object has a global_conf attribute containing the defaults as well as a loader attribute pointing at the loader instance. See https://github.com/Pylons/plaster_pastedeploy/pull/8
- Resolve an issue in which NoSectionError would not be properly caught on Python 2.7 if the configparser module was installed from PyPI. See https://github.com/Pylons/plaster_pastedeploy/issues/5
- Recognize the pastedeploy+egg scheme as an egg type.
- Drop the ini scheme and replace with file+ini and pastedeploy. Also rename ini+pastedeploy and egg+pastedeploy to pastedeploy+ini and pastedeploy+egg respectively. See https://github.com/Pylons/plaster_pastedeploy/pull/4
- Fix a bug in 0.2 in which an exception was raised for an invalid section if the a non-config-file-based protocol was used.
- No longer raise plaster.NoSectionError exceptions. Empty dictionaries are returned for missing sections and a user should check get_sections for the list of valid sections.
- Initial release.
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