No module named 'gevent'

The error message "No module named 'gevent'" indicates that the 'gevent' module is not installed in your Python environment. 'gevent' is a popular library for asynchronous programming in Python. To resolve this issue, you can try installing the 'gevent' module by running the following command in your terminal:

pip install gevent

If you're using a virtual environment, make sure it is activated before running the above command. If you don't have pip installed, you can install it by following the instructions at https://pip.pypa.io/en/stable/installing/.

After successfully installing the 'gevent' module, you should be able to import it without any errors in your Python code.