How to parse a list of dictionaries in Python 3

I’m using python(requests) to query an API. The JSON response is list of dictionaries, like below:

locationDescriptions = timeseries.publish.get('/GetLocationDescriptionList')['LocationDescriptions']


print(locationDescriptions[0])

{'Name': 'Test',
 'Identifier': '000045',
 'UniqueId': '3434jdfsiu3hk34uh8',
 'IsExternalLocation': False,
 'PrimaryFolder': 'All Locations',
 'SecondaryFolders': [],
 'LastModified': '2021-02-09T06:01:25.0446910+00:00',}

I’d like to extract 1 field (Identifier) as a list for further analysis (count, min, max, etc.) but I’m having a hard time figuring out how to do this.

Answer

Python has a syntax feature called “list comprehensions”, and you can do something like:

identifiers = [item['Identifier'] for item in locationDescriptions]

Here is a small article that gives you more details, and also shows an alternate way using map. And here is one of the many resources detailing list comprehensions, should you need it.