b6eb9a2480
Horizon's __init__.py has some code that explicitly allows it to be imported by setup.py before Django is set up, by making import failures just throw a warning instead of an exception. But that code is defeated by a bunch of asserts that were added later, that just make the error even more confusing. I'm removing the asserts and replacing them with __all__. Closes-bug: #1210253 Change-Id: I0fde7810a033fd7216da9a5460f5e4e323b4d6e9
69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 Nebula, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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""" The Horizon interface.
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Contains the core Horizon classes--:class:`~horizon.Dashboard` and
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:class:`horizon.Panel`--the dynamic URLconf for Horizon, and common interface
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methods like :func:`~horizon.register` and :func:`~horizon.unregister`.
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"""
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# Because this module is compiled by setup.py before Django may be installed
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# in the environment we try importing Django and issue a warning but move on
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# should that fail.
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Horizon = None
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try:
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from horizon.base import Dashboard # noqa
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from horizon.base import Horizon # noqa
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from horizon.base import Panel # noqa
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from horizon.base import PanelGroup # noqa
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except ImportError:
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import warnings
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def simple_warn(message, category, filename, lineno, file=None, line=None):
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return '%s: %s' % (category.__name__, message)
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msg = ("Could not import Horizon dependencies. "
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"This is normal during installation.\n")
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warnings.formatwarning = simple_warn
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warnings.warn(msg, Warning)
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if Horizon:
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register = Horizon.register
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unregister = Horizon.unregister
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get_absolute_url = Horizon.get_absolute_url
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get_user_home = Horizon.get_user_home
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get_dashboard = Horizon.get_dashboard
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get_default_dashboard = Horizon.get_default_dashboard
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get_dashboards = Horizon.get_dashboards
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urls = Horizon._lazy_urls
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# silence flake8 about unused imports here:
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__all__ = [
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"Dashboard",
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"Horizon",
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"Panel",
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"PanelGroup",
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"register",
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"unregister",
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"get_absolute_url",
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"get_user_home",
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"get_dashboard",
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"get_default_dashboard",
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"get_dashboards",
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"urls",
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]
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