phset = Entry(window, width = 10)
phset.grid(column=2, row = 3)
def phsetclick():

    minph = phset.get()
    ideallbl.configure(text="Ideal pH range is " + minph )

phsetbtn = Button(window, text="             Set pH minimum                ", command= phsetclick ,bg="powder blue", fg="black", font=("Arial Bold", 12))
phsetbtn.grid(column=1, row=3)

ideallbl = Label(window, text="Ideal pH range is " + minph, font=("Arial Bold", 10))