Sorting the Keys of a Python JSON Object
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Sorting the Keys of a Python JSON Object
Jun 11, 2020
I recently had to look at a complex JSON structure in Python. The way that I wanted to do this was to look at a sorted list of the keys. Here's the core of what I came up with:
keys = my_json.keys()
keys = list(keys)
keys.sort()
I keep a common_json.py library and this is what I came up that I can call from:
common_json.print_sorted_keys(json_dict)
Note: If you are debugging inside the common_json.py library then you need to call this just by the method signature and omit the common_json. prefix.
Here is the full code:
def print_sorted_keys(json_dict):
keys = json_dict.keys()
list_of_keys = list(keys)
list_of_keys.sort()
print(list_of_keys)
Note: Coming from a Ruby background, it is interesting to note that the .sort() call is an inline sort i.e. it affects the list_of_keys object as opposed to returning a new object that is itself sorted. From a ruby perspective this would be a ! method since it modifies the current object.
Note: Ruby isn't fully consistent with ! methods so keep that in mind.
Posted In: #python
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