@skirpichev @asmeurer  @smichr I am getting this error when I call egypt_greedy(Rational(x,y))

>>> from sympy import Rational
>>> from sympy.ntheory.egyptian_fraction import egpyt_greedy
>>> egypt_greedy(Rational(2,7))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "sympy/ntheory/egyptian_fraction.py", line 50, in egypt_greedy
    return [int(y/x) + 1] + egypt_greedy(Rational(num,denom))
TypeError: 'Rational' object is not callable

Can you please help me with this ? Why is 'Rational' object not callable ?