mirror of
https://github.com/jazzband/django-configurations.git
synced 2026-03-16 22:20:27 +00:00
1a54847375
This also adds some advanced features like a setup classmethod to the Configuration class. Reorganized and extended the documentation.
61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
import sys
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from django.core.exceptions import ImproperlyConfigured
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from django.utils import six
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from django.utils.importlib import import_module
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def isuppercase(name):
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return name == name.upper() and not name.startswith('_')
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def uppercase_attributes(obj):
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return dict((name, getattr(obj, name))
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for name in filter(isuppercase, dir(obj)))
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def import_by_path(dotted_path, error_prefix=''):
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"""
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Import a dotted module path and return the attribute/class designated by the
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last name in the path. Raise ImproperlyConfigured if something goes wrong.
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Backported from Django 1.6.
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"""
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try:
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module_path, class_name = dotted_path.rsplit('.', 1)
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except ValueError:
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raise ImproperlyConfigured("{0}{1} doesn't look like "
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"a module path".format(error_prefix,
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dotted_path))
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try:
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module = import_module(module_path)
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except ImportError as err:
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msg = '{0}Error importing module {1}: "{2}"'.format(error_prefix,
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module_path,
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err)
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six.reraise(ImproperlyConfigured, ImproperlyConfigured(msg),
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sys.exc_info()[2])
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try:
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attr = getattr(module, class_name)
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except AttributeError:
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raise ImproperlyConfigured('{0}Module "{1}" does not define a '
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'"{2}" attribute/class'.format(error_prefix,
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module_path,
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class_name))
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return attr
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def reraise(exc, prefix=None, suffix=None):
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args = exc.args
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if not args:
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args = ('',)
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if prefix is None:
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prefix = ''
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elif not prefix.endswith((':', ': ')):
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prefix = prefix + ': '
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if suffix is None:
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suffix = ''
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elif not (suffix.startswith('(') and suffix.endswith(')')):
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suffix = '(' + suffix + ')'
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exc.args = ('{0} {1} {2}'.format(prefix, exc.args[0], suffix),) + args[1:]
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raise
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