TinyPNG doesn't work

Does anyone know how to get the untested app TinyPNG to work? I've installed python that was initially the issue is I didn't have the latest version as it requires now I can't seem to figure out whats next.

This is the log

Launching task with command line: runner.rb task-24383]

Task description file task-24383:

ACTION: "/Users/tonylewis/Library/Application Support/Dropzone 3/Actions/Tinify.dzbundle"
EVENT: "clicked"
VARIABLE: "api_key" "••••"
VARIABLE: "app_version" "3.7.0"
VARIABLE: "support_folder" "/Users/tonylewis/Library/Application Support/Dropzone 3"

Traceback (most recent call last):
  File "/Applications/Dropzone 3.app/Contents/Actions/lib/python_runner.py", line 7, in <module>
    import action
  File "/Users/tonylewis/Library/Application Support/Dropzone 3/Actions/Tinify.dzbundle/action.py", line 20, in <module>
    import tinify
  File "/Users/tonylewis/Library/Application Support/Dropzone 3/Actions/Tinify.dzbundle/tinify/__init__.py", line 78, in <module>
    from .client import Client
  File "/Users/tonylewis/Library/Application Support/Dropzone 3/Actions/Tinify.dzbundle/tinify/client.py", line 7, in <module>
    import requests
ModuleNotFoundError: No module named 'requests'

[Task completed]