GUnicorn Implementation Causes Python Error

Question

Just throwing this out there because I'm an idiot and I don't know what this means. It seems like GUnicorn is causing Python to throw this error when the init tries to load EE. Hoping someone can at least point me on the right track to solving this problem.

    SyntaxError: invalid syntax
[2022-05-16 23:01:39 +0000] [12] [INFO] Worker exiting (pid: 12)
[2022-05-16 23:01:39 +0000] [13] [ERROR] Exception in worker process
Traceback (most recent call last):
  File "/home/appuser/.local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 586, in spawn_worker
    worker.init_process()
  File "/home/appuser/.local/lib/python2.7/site-packages/gunicorn/workers/ggevent.py", line 203, in init_process
    super(GeventWorker, self).init_process()
  File "/home/appuser/.local/lib/python2.7/site-packages/gunicorn/workers/base.py", line 135, in init_process
    self.load_wsgi()
  File "/home/appuser/.local/lib/python2.7/site-packages/gunicorn/workers/base.py", line 144, in load_wsgi
    self.wsgi = self.app.wsgi()
  File "/home/appuser/.local/lib/python2.7/site-packages/gunicorn/app/base.py", line 67, in wsgi
    self.callable = self.load()
  File "/home/appuser/.local/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 52, in load
    return self.load_wsgiapp()
  File "/home/appuser/.local/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 41, in load_wsgiapp
    return util.import_app(self.app_uri)
  File "/home/appuser/.local/lib/python2.7/site-packages/gunicorn/util.py", line 350, in import_app
    __import__(module)
  File "/home/appuser/.local/lib/python2.7/site-packages/gevent/builtins.py", line 96, in __import__
    result = _import(*args, **kwargs)
  File "/home/appuser/app/tiles/__init__.py", line 4, in <module>
    import ee
  File "/home/appuser/.local/lib/python2.7/site-packages/gevent/builtins.py", line 96, in __import__
    result = _import(*args, **kwargs)
  File "/home/appuser/.local/lib/python2.7/site-packages/ee/__init__.py", line 17, in <module>
    from . import batch
  File "/home/appuser/.local/lib/python2.7/site-packages/gevent/builtins.py", line 96, in __import__
    result = _import(*args, **kwargs)
  File "/home/appuser/.local/lib/python2.7/site-packages/ee/batch.py", line 17, in <module>
    from . import data
  File "/home/appuser/.local/lib/python2.7/site-packages/gevent/builtins.py", line 96, in __import__
    result = _import(*args, **kwargs)
  File "/home/appuser/.local/lib/python2.7/site-packages/ee/data.py", line 611
    lambda x, y, z: f'{_tile_base_url}/{version}/{name}/tiles/{z}/{x}/{y}')
                                                                         ^