博图得到分配机械强度

Question

我想用boto从mturk上的一个老点击中检索任务。我就是这么做的。在

from boto.mturk.connection import MTurkConnection
import csv
mtc = MTurkConnection(aws_access_key_id=ACCESS_ID,
                                  aws_secret_access_key=SECRET_KEY,
                                  host=HOST)

assignments = mtc.get_assignments(HIT_ID, status=None, sort_by='SubmitTime', sort_direction='Ascending', page_size=10, page_number=1, response_groups=None)

with open('assignments.csv','w') as tar:
        csvwriter = csv.writer(tar, delimiter=';', quoting = csv.QUOTE_NONE, quotechar='')
        for asgn in assignments:
                row = []
                for i in range(len(asgn.answers[0])):
                        row.append(asgn.answers[0][i].fields[0])
                csvwriter.writerow(row)

但它抛出了这个错误。在

^{pr2}$

我向你保证这次袭击确实存在。我使用的是boto 2.40.0。在