A question with ”word_freq”？

[OREAw]

I think the follow function needs a small change, and I marked it by ****. Because when you using "max(c1_order, key=phrase_freq.get )", the type of data maybe string.
def construct_dict( file_path ):
word_freq = {}
with open(file_path, mode='r', encoding='UTF-8') as f:
for line in f:
info = line.split()
word = info[0]
frequency = info[1] -------------- frequency = int(info[1])
word_freq[word] = frequency
return word_freq