[SOLVED] Retrieve the main key by using part of the sub value in a dictionary

Retrieve the main key by using part of the sub value in a dictionary

I have a dictionary which has subkeys and sub values. I want to print a list of the main keys that contain a certain value in the subkey. I hope the example makes it clear:

cssStyleDict= {'.c13':{'color':'#000',
               'font-family':'"Arial"',
               'font-weight':'700',
               'vertical-align':'baseline'},
               '.c6':{'font-weight':'700'}, 
               '.c7':{'color':'#000',
               'font-size':'11pt',
               'font-weight':'700',
               'text-decoration':'none'},
               '.c2':{'background-color':'#ff0'}}

I want to print a list of all keys that contain {'font-weight':'700'}. I have tried this:

def getKeysByValue(dictOfElements, valueToFind):
    listOfKeys = list()
    listOfItems = dictOfElements.items()
    for item  in listOfItems:
        if item[1] == valueToFind:
            listOfKeys.append(item[0])
    return  listOfKeys

listOfKeys = getKeysByValue(cssStyleDict, {'font-weight':'700'} )
for key in listOfKeys:
    print(key)

But of course this only gives me an exact match. I've also tried using a regex expression, but to no avail. The output should be a list containing .c13 .c6 .c7

Thanks in advance if anyone can help.

Solution

You can try this way:

>>> [ i for i in cssStyleDict if cssStyleDict[i].get('font-weight') == '700' ]
['.c13', '.c6', '.c7']