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Modified deep_copy() so it does not have to turn interpolation off.

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Really fixes issue #579.
This commit is contained in:
Tom Keffer
2020-06-29 15:20:03 -07:00
parent a3dca5aa6c
commit 6e052d1dd0
4 changed files with 15 additions and 18 deletions
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23
bin/weeutil/config.py
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@@ -1,5 +1,5 @@
#
# Copyright (c) 2018-2019 Tom Keffer <tkeffer@gmail.com>
# Copyright (c) 2018-2020 Tom Keffer <tkeffer@gmail.com>
#
# See the file LICENSE.txt for your full rights.
#
@@ -229,18 +229,17 @@ def config_from_str(input_str):
def deep_copy(old_dict):
""" Return a deepcopy of a ConfigObj."""
import copy
""" Return a deep copy of a ConfigObj. This utility can only be used by a ConfigObj,
not one of its Sections."""
import io
# Turn off interpolation. It seems to interfere with the deep copying process.
# Save the old interpolation value.
old_interpolation = old_dict.main.interpolation
old_dict.main.interpolation = False
new_dict = copy.deepcopy(old_dict)
# Restore the old interpolation value
old_dict.main.interpolation = old_interpolation
with io.BytesIO() as fd:
old_dict.write(fd)
fd.seek(0)
new_dict = configobj.ConfigObj(fd,
encoding=old_dict.encoding,
default_encoding=old_dict.default_encoding,
interpolation=old_dict.interpolation)
return new_dict

2
bin/weeutil/tests/test_config.py
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@@ -43,7 +43,7 @@ class TestConfig(unittest.TestCase):
}
c_in = configobj.ConfigObj(test_dict, encoding='utf-8')
c_out = weeutil.config.deep_copy(c_in['Logging'])
c_out = weeutil.config.deep_copy(c_in)['Logging']
self.assertIsInstance(c_out, configobj.Section)
self.assertEqual(c_out, test_dict['Logging'])
# Try changing something and see if it's still equal:

6
bin/weewx/engine.py
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@@ -134,11 +134,9 @@ class StdEngine(object):
log.debug("No services in service group %s", service_group)
continue
log.debug("Loading service %s", svc)
# Make sure each service gets its own copy of the config dictionary.
config_dict_copy = weeutil.config.deep_copy(config_dict)
# Get the class, then instantiate it with self and the new config dictionary as
# Get the class, then instantiate it with self and the config dictionary as
# arguments:
obj = weeutil.weeutil.get_object(svc)(self,config_dict_copy)
obj = weeutil.weeutil.get_object(svc)(self, config_dict)
# Append it to the list of open services.
self.service_obj.append(obj)
log.debug("Finished loading service %s", svc)

2
bin/weewx/reportengine.py
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@@ -246,7 +246,7 @@ class StdReportEngine(threading.Thread):
if 'Defaults' in self.config_dict['StdReport']:
# Because we will be modifying the results, make a deep copy of the [[Defaults]]
# section.
merge_dict = weeutil.config.deep_copy(self.config_dict['StdReport']['Defaults'])
merge_dict = weeutil.config.deep_copy(self.config_dict)['StdReport']['Defaults']
weeutil.config.merge_config(skin_dict, merge_dict)
# Inject any scalar overrides. This is for backwards compatibility. These options should now go