Kaggle 下载数据集报错：ModuleNotFoundError: No module named ‘urllib3‘

Kaggle 下载数据集报错：ModuleNotFoundError: No module named ‘urllib3’

一、报错：ModuleNotFoundError: No module named ‘urllib3’

  报错内容如下：

Traceback (most recent call last):
  File "/home/username/.local/bin/kaggle", line 5, in <module>
    from kaggle.cli import main
  File "/home/username/.local/lib/python3.8/site-packages/kaggle/__init__.py", line 19, in <module>
    from kaggle.api.kaggle_api_extended import KaggleApi
  File "/home/username/.local/lib/python3.8/site-packages/kaggle/api/__init__.py", line 22, in <module>
    from kaggle.api.kaggle_api_extended import KaggleApi
  File "/home/username/.local/lib/python3.8/site-packages/kaggle/api/kaggle_api_extended.py", line 46, in <module>
    from ..api_client import ApiClient
  File "/home/username/.local/lib/python3.8/site-packages/kaggle/api_client.py", line 42, in <module>
    from kaggle.configuration import Configuration
  File "/home/username/.local/lib/python3.8/site-packages/kaggle/configuration.py", line 36, in <module>
    import urllib3
ModuleNotFoundError: No module named 'urllib3'

  错误分析：根据报错内容提示，没有 ‘urllib3’ 这个包，但是环境中是有这个包的！于是，按照路径发现执行得是/home/username/.local/lib/python3.8/site-packages/kaggle/路径下的文件，既然是这个路径下的文件有问题，想着重新生成此目录即可。

二、解决方法

  先删除/home/username/.local/lib/这个目录。
  然后执行以下命令：

pip install --user kaggle

  执行后发现已经成功生成/home/username/.local/lib/目录。然后再使用 Kaggle API 接口下载数据发现不报错。成功解决！