创建循环以打印出最常见的短语python

Question

我需要创建一个循环来打印最常见的短语，其中计数为5或更大，其余的则被分成其他类别。如何编写循环以打印出计数为5或更多的常用短语？到目前为止，这是我的代码：

import csv
#from sys import argv
from collections import defaultdict
from collections import Counter
#script, filename = argv
data = defaultdict(list)

class dictionary:
    with open ('practice.csv', 'rb') as f:
       reader = csv.reader(f)
       #text_file = open("output.txt", "w")
       next(reader, None) 
       for row in reader:
          data[row[2]].append(row[3])

       #text_file.write("%r" % data)

       #text_file.close()

   #print(data)

   text_file = open("count.txt", "w")
   data_count = Counter()
   for d in data.values():
      data_count += Counter(d)
   print data_count.most_common(5)
   text_file.write("%r" % data_count.most_common(5))
   text_file.close()