removed __render_as_fraction altogether

src/qrules/io/_dot.py

@@ -12,7 +12,6 @@
 from fractions import Fraction
 from functools import singledispatch
 from inspect import isfunction
-from numbers import Number
 from typing import TYPE_CHECKING, Any, cast
 
 import attrs
@@ -317,22 +316,11 @@ def _(obj: dict) -> str:
             key_repr = key
         if value != 0 or any(s in key_repr for s in ["magnitude", "projection"]):
             pm = not any(s in key_repr for s in ["pid", "mass", "width", "magnitude"])
-            value_repr = __render_as_fraction(value, pm)
+            value_repr = _render_fraction(value, pm)
             lines.append(f"{key_repr} = {value_repr}")
     return "\n".join(lines)
 
 
-def __render_as_fraction(value: Any, plusminus: bool) -> str:
-    plusminus &= isinstance(value, Number) and bool(value)
-    if isinstance(value, float):
-        return _render_fraction(Fraction(value), plusminus)
-    if isinstance(value, Fraction):
-        return _render_fraction(value, plusminus)
-    if plusminus:
-        return f"{value:+}"
-    return str(value)
-
-
 def _render_fraction(fraction: Fraction, plusminus: bool = False) -> str:
     if plusminus:
         if fraction.denominator == 1: