Average of string & missing values in dictionary (python) -


i have dictionary whereas values of string type. want calculate average per key whereas empty string missing value. here's code need small twerk work...with error : int() argument must string or number, not 'list'

dic = {'e': ['1', '', '3'], 'm': ['2', '', '1']} k,n in dic.items():     k = [0]     n = [1]  d = {k: (int(n)) k, n in dic.items() if n} ave = {k:sum(d)/float(len(d))} if d else '-' print ave

expected output: {'e': 2, 'm': 1.5}

dic = {'e': ['1', '', '3'], 'm': ['2', '', '1']} ave = dict() k in dic:    nonempty = [ float(v) v in dic[k] if v != '' ]    ave[k] = sum(nonempty) / len(nonempty) print ave

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