当我进行数据分析实践时,此代码在Python3中没有按预期运行.
类型错误是"TypeError:/ dict_values"和"int"的不支持的操作数类型.
我该怎么解决？
import numpy as np
# Summarize the data about minutes spent in the classroom
total_minutes = total_minutes_by_account.values()
total_minutes = np.array(total_minutes)
print('Mean:', np.mean(total_minutes))
print('Standard deviation:', np.std(total_minutes))
print('Minimum:', np.min(total_minutes))
print('Maximum:', np.max(total_minutes))