PySimpleGUI tk version Python 2.7 bug

[deajan]

I am not really using python 2.7, but it's the default Python version on CentOS 7 so I kind of used it without thinking.
Could not use PySimpleGUI (current pip version) because of

Traceback (most recent call last):
  File "./smartd_pyngui.py", line 36, in <module>
    import PySimpleGUI as sg
  File "/usr/lib/python2.7/site-packages/PySimpleGUI/__init__.py", line 2, in <module>
    from .PySimpleGUI import *
  File "/usr/lib/python2.7/site-packages/PySimpleGUI/PySimpleGUI.py", line 5949
    def __init__(self, title, current_value, max_value, key, *args, orientation='v', bar_color=(None, None),
                                                                              ^
SyntaxError: invalid syntax

[MikeTheWatchGuy]

Yea, in order to run 2.7, you have to pip install PySimpleGUI27, otherwise you get the errors you're seeing.