找不到这个模块该怎么解决啊？

Traceback (most recent call last):
File "C:/Users/lenovo/Desktop/seq2seq-chatbot-master/Train.py", line 5, in
import tensorflow as tf
ImportError: No module named 'tensorflow'

Process finished with exit code 1
这个tensorflow已经下载成功，可是怎么运行都显示这个结果，该怎么解决？急等，谢谢！