SyntaxError: invalid syntax

[Aung Maw]

Please help with advice:

When I start up the server $ sudo webiopi -d -c /etc/webiopi/config

But get following errors

Traceback (most recent call last):
  File "/usr/lib/python3.9/runpy.py", line 188, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/python3.9/runpy.py", line 147, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/python3.9/runpy.py", line 111, in _get_module_details
    __import__(pkg_name)
  File "/usr/local/lib/python3.9/dist-packages/WebIOPi-0.7.1-py3.9-linux-armv7l.egg/webiopi/__init__.py", line 20, in <module>
    from webiopi.utils.thread import runLoop
  File "/usr/local/lib/python3.9/dist-packages/WebIOPi-0.7.1-py3.9-linux-armv7l.egg/webiopi/utils/thread.py", line 36
    def runLoop(func=None, async=False):
                           ^
SyntaxError: invalid syntax