We removed the python modules field as they are now imported automatically if they are supported, You can find the support list here: Packages built in Pyodide — Version 0.23.4
Request is not on the supported list so I would expect that to fail.
Even with the previous Python Modules field it would only pull in what Pyodide supports so the functionality itself has not really changed.
We use Pyodide because it sandboxes the code and protects the instance, While this may not be ideal for everyone it does allow python to be used and you were after any specific modules you could ask the maintainer of the module to support pyodide.
Alternatively if you didn’t care about the python sandbox you could build your own docker image that includes python and the modules you want to use then use them from the execute command node.