Tqdm 4.28.1 in Jupiter Notebook“ IntProgress not found. Please update Jupyter and ipywidgets.”

我尝试在 Python 代码中使用 tqdm _ book，但是遇到了这个错误

import tqdm


for i in tqdm.tqdm_notebook(range(2, int(total_number)//20):i

错误:

IntProgress not found. Please update jupyter and ipywidgets.
ImportError: IntProgress not found. Please update jupyter and ipywidgets. See https://ipywidgets.readthedocs.io/en/stable/user_install.html

我使用的是 Python 3.7.1和 tqdm 版本(4.28.1)