Custom ordering in Sympy

[Paul Royik]

I want to rewrite Integral of 10x^7-xy+y/x+2x^5 as sum of integrals. Something like

Int(10x^7-xy+y/x+2x^5) = Int(10x^7)-Int(xy)+Int(y/x)+Int(2x^5)

But sympy makes its own ordering and outputs

Int(10x^7-xy+y/x+2x^5) = Int(2x^5)+Int(10x^7)+Int(y/x)-Int(xy)

Where can I override this behaviour if Int is my own class?

[Aaron Meurer]

The order that an Add is printed in is determined by the printer. I
think the only way to override this is to subclass the printer you are
using and override _as_ordered_terms. See
http://docs.sympy.org/latest/modules/printing.html and
https://github.com/sympy/sympy/blob/e6fc53f27ee872b27bc79b96529fc4bf34d4f023/sympy/printing/printer.py#L264.

Aaron Meurer

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