8a79c25292
In this commit we split utils module into several parts: - flow_utils, with code used in running flows; - threading_utils, with code that helps in working with threads; - reflection, with code that inspects python objects metadata; - misc, with all the other code that used to live in utils.py. We also move graph_utils into taskflow.utils package. This commit just moves code around. It should not change any logic (with exception of complex_graph example). Change-Id: Iebfe45395f0ff502bc00fc7ae14829130b2c6abe
69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (C) 2012-2013 Yahoo! Inc. All Rights Reserved.
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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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import inspect
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import types
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def get_callable_name(function):
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"""Generate a name from callable
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Tries to do the best to guess fully qualified callable name.
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"""
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im_class = getattr(function, 'im_class', None)
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if im_class is not None:
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if im_class is type:
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# this is bound class method
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im_class = function.im_self
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parts = (im_class.__module__, im_class.__name__,
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function.__name__)
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elif isinstance(function, types.FunctionType):
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parts = (function.__module__, function.__name__)
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else:
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im_class = type(function)
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if im_class is type:
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im_class = function
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parts = (im_class.__module__, im_class.__name__)
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return '.'.join(parts)
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def is_bound_method(method):
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return getattr(method, 'im_self', None) is not None
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def get_required_callable_args(function):
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"""Get names of argument required by callable"""
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if isinstance(function, type):
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bound = True
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function = function.__init__
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elif isinstance(function, (types.FunctionType, types.MethodType)):
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bound = is_bound_method(function)
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function = getattr(function, '__wrapped__', function)
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else:
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function = function.__call__
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bound = is_bound_method(function)
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argspec = inspect.getargspec(function)
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f_args = argspec.args
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if argspec.defaults:
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f_args = f_args[:-len(argspec.defaults)]
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if bound:
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f_args = f_args[1:]
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return f_args
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