print(datetime.now().strftime("%H:%M:%S") + ": cache not found")
# file is not created, scores will be calculated, create a file/cache
workbook = openpyxl.Workbook()
# returns a sheet with doc-vectors with doc-tf-idf, df, idf and bag-of-words
doc_sheet = vsm.create_doc_sheet(workbook.active)
# saves the cache file on disk
workbook.save("../out/tf-idf.xlsx")
print(datetime.now().strftime("%H:%M:%S") + ": cache saved to disk")
# an object of GUI class is created
# doc_sheet which have doc-vectors and bag-of-words is passed to the constructor and vsm object
gui = GUI(vsm, doc_sheet)
# setGUI creates the GUI and returns a window through which we run the GUI
window = gui.setGUI()
# this opens the GUI
window.mainloop()
# when GUI window is closed the control comes here
# closes the workbook that ahs doc-sheet
workbook.close()
print(datetime.now().strftime("%H:%M:%S") + ": cache-file closed")
print(datetime.now().strftime("%H:%M:%S") + ": exit")
