How to pass a Tkinter Entry through a function

Question

is there any reasonable way to convert my while loop into a for loop? I tried to create this, but I never got far cause the range 's and/or xrange 's broke because the number was too large or they don't take a float . Here's my while loop that I want to see if there is a reasonable for loop conversion for(This is within a function is why it's indented):

    a = float(E1.get())
    b = (a + 1)
    c = sqrt(b)
    e = sqrt(a)
    f = (unichr(0x221A))
    fractional, integral = modf(c)
    while integral == integral:
        fractional1, integral1 = modf(a / (integral**2))
        print(fractional1)
        if fractional1 != 0:
            integral -= 1
            continue
        else: break

if a range or xrange is possible, it'd have to be range(1,a+1) or xrange(1,a+1)

This is my entire code:

def radical():
    # Define variables needed
    a = float(E1.get())
    b = (a + 1)
    c = sqrt(b)
    e = sqrt(a)
    f = (unichr(0x221A))
    fractional, integral = modf(c)
    while integral == integral:
        fractional1, integral1 = modf(a / (integral**2))
        print(fractional1)
        if fractional1 != 0:
            integral -= 1
            continue
        else: break
    d = (a / (integral**2))
    # make pointless floats integers
    if integral.is_integer():
        integral = int(integral)
    if d.is_integer():
        d = int(d)
    if e.is_integer():
        e = int(e)
    # set conditions for output
    if d == 1:
        global master
        master = Tkinter.Tk()
        w = Tkinter.Message(master, padx=5, pady=5,text=(integral)).grid(ipadx=5, ipady=5)
        master.title("Square Root")
        master.mainloop()
    elif integral == 1:
        master = Tkinter.Tk()
        w = Tkinter.Message(master, padx=5, pady=5,text=(f,d,"or",e)).grid(ipadx=5, ipady=5)
        master.title("Simplified Radical")
        master.mainloop()
    else:
        master = Tkinter.Tk()
        w = Tkinter.Message(master, padx=5, pady=5,text=(integral,f,d,"or",e)).grid(ipadx=5, ipady=5)
        master.title("Simplified Radical")
        master.mainloop()

Answer 1

If you want infinite loop, you can use itertools.repeat(1) which will yield infinitely:

import itertools

....

for _ in itertools.repeat(1):  # instead of `while integral == integral`
    ...

You can also use itertools.count() or itertools.cycle([1]) .

---

UPDATE

Using range(integral, 0, -1) , you can iterate from integral down to 1 (excluding 0).

for integral in range(integral, 0, -1):  # xrange if you're using Python 2.x
    fractional1, integral1 = modf(a / (integral**2))
    print(fractional1)