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# This code is part of Ansible, but is an independent component. # This particular file snippet, and this file snippet only, is BSD licensed. # Modules you write using this snippet, which is embedded dynamically by Ansible # still belong to the author of the module, and may assign their own license # to the complete work. # # Copyright (c) 2016, Toshio Kuratomi <tkuratomi@ansible.com> # Copyright (c) 2015, Marius Gedminas # # Redistribution and use in source and binary forms, with or without modification, # are permitted provided that the following conditions are met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above copyright notice, # this list of conditions and the following disclaimer in the documentation # and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. # IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE # USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. from __future__ import (absolute_import, division, print_function) __metaclass__ = type import sys def get_exception(): """Get the current exception. This code needs to work on Python 2.4 through 3.x, so we cannot use "except Exception, e:" (SyntaxError on Python 3.x) nor "except Exception as e:" (SyntaxError on Python 2.4-2.5). Instead we must use :: except Exception: e = get_exception() """ return sys.exc_info()[1] try: # Python 2.6+ from ast import literal_eval except ImportError: # a replacement for literal_eval that works with python 2.4. from: # https://mail.python.org/pipermail/python-list/2009-September/551880.html # which is essentially a cut/paste from an earlier (2.6) version of python's # ast.py from compiler import ast, parse from ansible.module_utils.six import binary_type, integer_types, string_types, text_type def literal_eval(node_or_string): # type: ignore[misc] """ Safely evaluate an expression node or a string containing a Python expression. The string or node provided may only consist of the following Python literal structures: strings, numbers, tuples, lists, dicts, booleans, and None. """ _safe_names = {'None': None, 'True': True, 'False': False} if isinstance(node_or_string, string_types): node_or_string = parse(node_or_string, mode='eval') if isinstance(node_or_string, ast.Expression): node_or_string = node_or_string.node def _convert(node): if isinstance(node, ast.Const) and isinstance(node.value, (text_type, binary_type, float, complex) + integer_types): return node.value elif isinstance(node, ast.Tuple): return tuple(map(_convert, node.nodes)) elif isinstance(node, ast.List): return list(map(_convert, node.nodes)) elif isinstance(node, ast.Dict): return dict((_convert(k), _convert(v)) for k, v in node.items()) elif isinstance(node, ast.Name): if node.name in _safe_names: return _safe_names[node.name] elif isinstance(node, ast.UnarySub): return -_convert(node.expr) # pylint: disable=invalid-unary-operand-type raise ValueError('malformed string') return _convert(node_or_string) __all__ = ('get_exception', 'literal_eval')