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# Copyright 2014 - Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import inspect
import json
def get_public_fields(obj):
"""Returns only public fields from object or class."""
public_attributes = [attr for attr in dir(obj)
if not attr.startswith("_")]
public_fields = {}
for attribute_str in public_attributes:
attr = getattr(obj, attribute_str)
is_field = not (inspect.isbuiltin(attr) or
inspect.isfunction(attr) or
inspect.ismethod(attr) or
isinstance(attr, property))
if is_field:
public_fields[attribute_str] = attr
return public_fields
def get_docstring(obj):
return inspect.getdoc(obj)
def get_arg_list(func):
argspec = get_args_spec(func)
args = argspec.args
if 'self' in args:
args.remove('self')
return args
def get_arg_list_as_str(func):
args = getattr(func, "__arguments__", None)
if args:
return args
argspec = get_args_spec(func)
defs = list(argspec.defaults or [])
args = get_arg_list(func)
diff_args_defs = len(args) - len(defs)
arg_str_list = []
for index, default in enumerate(args):
if index >= diff_args_defs:
try:
arg_str_list.append(
"%s=%s" % (
args[index],
json.dumps(defs[index - diff_args_defs])
)
)
except TypeError:
pass
else:
arg_str_list.append("%s" % args[index])
if argspec.varkw:
arg_str_list.append("**%s" % argspec.varkw)
return ", ".join(arg_str_list)
def get_args_spec(func):
return inspect.getfullargspec(func)
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