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Added dictionary filter function

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This commit is contained in:
Joel Collins 2019-01-21 10:49:22 +00:00
parent dbee6ffaa1
commit f7c6596bef
1 changed files with 12 additions and 1 deletions
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13
openflexure_microscope/utilities.py
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@ -1,4 +1,6 @@
import copy
import operator
from functools import reduce
def axes_to_array(coordinate_dictionary, axis_keys=['x', 'y', 'z'], base_array=None):
"""Takes key-value pairs of a JSON value, and maps onto an array"""
@ -15,4 +17,13 @@ def axes_to_array(coordinate_dictionary, axis_keys=['x', 'y', 'z'], base_array=N
if key in coordinate_dictionary:
base_array[axis] = coordinate_dictionary[key]
return base_array
return base_array
def filter_dict(dictionary: dict, keys: list):
# Get value by recursively applying getitem
val = reduce(operator.getitem, keys, dictionary)
# Create new dictionary by running reduce on key, val pairs
out = reduce(lambda x, y: {y: x}, reversed(keys), val)
return out