Printing of unevaluated Mul needs brackets

[oscarbenjamin]

The second version here should use brackets or something:

In [16]: Mul(Rational(1, 2), x + y, evaluate=False)
Out[16]: 
x + y
─────
  2  

In [17]: Mul(x + y, Rational(1, 2), evaluate=False)
Out[17]: x + y⋅1/2

[eric-wieser]

I can't reproduce this on e359645 (master as of writing):

In [1]: from sympy import *

In [2]: x, y = symbols('x y', commutative=False)

In [3]: pretty_print(Mul(Rational(1, 2), x + y, evaluate=False))
x + y
─────
  2

In [4]: pretty_print(Mul(x + y, Rational(1, 2), evaluate=False))
x + y
─────
  2

[oscarbenjamin]

I think your master branch is out of date.

[eric-wieser]

Ah, in that case my PR fixes this. Thanks!