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def add_log(list_logs, log):
    list_changes = []
    list_changes.append(list_logs[0].text())
    list_logs[0].setText(log)
    for q in range(len(list_logs)):
        try:
            if q == 0: continue
            list_changes.append(list_logs[q].text())
            list_logs[q].setText(list_changes[-2])
        except:
            break