def ResearchR(x):
    if len(Researching) > 1:
        del Researching[0]
        Researching.append(x)
        print(x)
    else:
        Researching.append(x)
        print(x)
        print(Researched)
        print(Researching)

def ResearchW():
    temp = []
    RWindow = Toplevel(root)
    RWindow.focus_set()
    RWindow.grab_set()
    for x in Tech:
        for y in x:
            if y not in Tech[0] and prereq(y) in Researched:
                r = Button(RWindow,text = y,command = lambda: ResearchR(y))
                temp.append(r)
                r.pack()
                print(y)
            elif y in Techtree1:
                r = Button(RWindow,text = y,command = lambda: ResearchR(y))
                temp.append(r)
                r.pack()
                print(y)