74 lines
2 KiB
Python
74 lines
2 KiB
Python
#. -*- coding: utf-8
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#
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# helper functions
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from copy import deepcopy
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import functools
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def dict_merge(target, *args):
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""" Recursively merges mutiple dicts """
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# Merge multiple dicts
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if len(args) > 1:
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for obj in args:
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dict_merge(target, obj)
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return target
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# Recursively merge dicts and set non-dict values
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obj = args[0]
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if not isinstance(obj, dict):
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return obj
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for k, v in obj.items():
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if k in target and isinstance(target[k], dict):
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dict_merge(target[k], v)
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else:
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target[k] = deepcopy(v)
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return target
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def get_rec(search_dict, field):
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"""
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Takes a dict with nested lists and dicts,
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and searches all dicts for a key of the field
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provided.
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"""
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fields_found = []
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for key, value in search_dict.items():
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if key == field:
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fields_found.append(value)
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elif isinstance(value, dict):
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results = get_rec(value, field)
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for result in results:
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fields_found.append(result)
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elif isinstance(value, list):
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for item in value:
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if isinstance(item, dict):
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more_results = get_recursively(item, field)
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for another_result in more_results:
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fields_found.append(another_result)
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return fields_found
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def gen_dict_extract(key, var):
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if hasattr(var,'iteritems'):
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for k, v in var.iteritems():
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if k == key:
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yield v
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if isinstance(v, dict):
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for result in gen_dict_extract(key, v):
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yield result
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elif isinstance(v, list):
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for d in v:
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for result in gen_dict_extract(key, d):
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yield result
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def chained_get(dct, *keys):
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SENTRY = object()
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def getter(level, key):
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return 'NA' if level is SENTRY else level.get(key, SENTRY)
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return functools.reduce(getter, keys, dct)
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