我在调试这个程序时遇到了麻烦，它计算了许多推文的 p 值：
db = connection.data
shows = db.individual
def pvalue():
#p-values of total tweets
show_records = sorted([(m['total_tweets'], m) for m in db.individual.find()])
index=0
while index < len(show_records):
show = show_records[index]
tweet_pvalue = 1 - (index + 1.0) / len(show_records)
total=show['total_tweets']
shows.update({"id": show[1]["id"]}, {'$set':{"pvalue_total_tweets":tweet_pvalue}})
#need to remove several occurences of the same number of tweets to not false the p-value.
while show_records[index + 1]['total_tweets'] == total: #while next document has the same number of tweets
index+=1
show=show_records[index]
shows.update({"id": show[1]["id"]}, {'$set':{"pvalue_total_tweets":tweet_pvalue}})
它返回：
total=show['total_tweets']
TypeError: tuple indices must be integers, not str
非常感谢你的帮助！