Group/Count list of dictionaries based on value

Question

I\'ve got a list of Tokens which looks something like:

[{
    Value: \"Blah\",
    StartOffset: 0,
    EndOffset: 4
}, ... ]

What I want to do

Answer 1

Let's assume that is your python list, containing dictionnaries:

my_list = [{'Value': 'Blah',
            'StartOffset': 0,
            'EndOffset': 4},
           {'Value': 'oqwij',
            'StartOffset': 13,
            'EndOffset': 98},
           {'Value': 'Blah',
            'StartOffset': 6,
            'EndOffset': 18}]

A one liner:

len([i for i in a if i['Value'] == 'Blah']) # returns 2