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https://github.com/gnuradio/gnuradio-companion.git
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43e6a43e3d
All of the removed `from __future__ import` were needed in older versions of Python (mostly 2.5.x and below) but later became mandatory in most versions of Python 3 hence are not necessary anymore. More specifically, according to __future__.py[1]: - unicode_literals is part of Python since versions 2.6.0 and 3.0.0; - print_function is part of Python since versions 2.6.0 and 3.0.0; - absolute_import is part of Python since versions 2.5.0 and 3.0.0; - division is part of Python since versions 2.2.0 and 3.0.0; Get rid of those unnecessary imports to slightly clean up the codebase. [1] https://github.com/python/cpython/blob/master/Lib/__future__.py
82 lines
2.2 KiB
Python
82 lines
2.2 KiB
Python
# Copyright 2016 Free Software Foundation, Inc.
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# This file is part of GNU Radio
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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#
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from collections import OrderedDict
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import six
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import yaml
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from ..params.param import attributed_str
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class GRCDumper(yaml.SafeDumper):
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@classmethod
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def add(cls, data_type):
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def decorator(func):
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cls.add_representer(data_type, func)
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return func
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return decorator
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def represent_ordered_mapping(self, data):
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value = []
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node = yaml.MappingNode(u'tag:yaml.org,2002:map', value, flow_style=False)
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if self.alias_key is not None:
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self.represented_objects[self.alias_key] = node
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for item_key, item_value in six.iteritems(data):
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node_key = self.represent_data(item_key)
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node_value = self.represent_data(item_value)
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value.append((node_key, node_value))
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return node
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def represent_ordered_mapping_flowing(self, data):
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node = self.represent_ordered_mapping(data)
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node.flow_style = True
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return node
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def represent_list_flowing(self, data):
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node = self.represent_list(data)
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node.flow_style = True
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return node
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def represent_ml_string(self, data):
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node = self.represent_str(data)
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node.style = '|'
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return node
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class OrderedDictFlowing(OrderedDict):
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pass
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class ListFlowing(list):
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pass
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class MultiLineString(str):
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pass
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GRCDumper.add_representer(OrderedDict, GRCDumper.represent_ordered_mapping)
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GRCDumper.add_representer(OrderedDictFlowing, GRCDumper.represent_ordered_mapping_flowing)
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GRCDumper.add_representer(ListFlowing, GRCDumper.represent_list_flowing)
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GRCDumper.add_representer(tuple, GRCDumper.represent_list)
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GRCDumper.add_representer(MultiLineString, GRCDumper.represent_ml_string)
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GRCDumper.add_representer(yaml.nodes.ScalarNode, lambda r, n: n)
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GRCDumper.add_representer(attributed_str, GRCDumper.represent_str)
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def dump(data, stream=None, **kwargs):
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config = dict(stream=stream, default_flow_style=False, indent=4, Dumper=GRCDumper)
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config.update(kwargs)
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return yaml.dump_all([data], **config)
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safe_load = yaml.safe_load
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__with_libyaml__ = yaml.__with_libyaml__
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