How do I sort a list of dictionaries this way?-CodePudding

Suppose You have a list of dictionaries like the below.

data = [
    
    {
        'id':1,
        'name':'ABC corporation',
        'state': 'WA'
    },
    {
        'id':2,
        'name':'ABC corporation',
        'state': 'QLD'
    },
    {
        'id':3,
        'name':'ABC corporation',
        'state': 'WA'
    },
    {
        'id':4,
        'name':'ABC corporation',
        'state': 'QLD'
    },
    {
        'id':5,
        'name':'ABC corporation',
        'state': 'WA'
    }
]

I want all the dictionaries where state == QLD to come before others (i.e. which state is given has to come first. so the result will be:



data = [
    {
        'id':2,
        'name':'ABC corporation',
        'state': 'QLD'
    },
    {
        'id':4,
        'name':'ABC corporation',
        'state': 'QLD'
    },
    {
        'id':1,
        'name':'ABC corporation',
        'state': 'WA'
    },
    
    {
        'id':3,
        'name':'ABC corporation',
        'state': 'WA'
    },
    
    {
        'id':5,
        'name':'ABC corporation',
        'state': 'WA'
    }
]

Note: Not just normal sorting. I want to sort according to the state, only if the state value is matched. My concern is that the given state dictionary data will be before other state's data.

CodePudding user response：

Try this, it returns "" on "QLD", which should always be the "first" string when sorting:

def my_sort(x):
    if x["state"] == "QLD":
        return ""
    else:
        return x["state"]

sorted_data = list(sorted(data, key=my_sort))
print(sorted_data)

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