Explanation
Lines 9-15 were
window = sg.Window("File Compressor",
layout=[[label],
[option1,
option2,
option3,
option4],
])
but they should be
window = sg.Window("File Compressor",
layout=[[label],
[option1],
[option2],
[option3],
[option4],
])
Each of the options should be served as a list to the layout.
Note: that the code below will not run because the editor does not support PySimpleGUI. Use your local IDE to run the code instead.
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