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16 changes: 12 additions & 4 deletions src/simplefractions/__init__.py
Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@
import numbers
import typing

from simplefractions._simplest_in_interval import _simplest_in_interval
from simplefractions._simplest_in_interval import simplest_in_interval_strict

#: Names to be exported when doing 'from simplefractions import *'.
__all__ = ["simplest_from_float", "simplest_in_interval"]
Expand Down Expand Up @@ -103,8 +103,11 @@ def simplest_in_interval(
if right is not None:
right = fractions.Fraction(right)

return _simplest_in_interval(
left, right, include_left=include_left, include_right=include_right
return simplest_in_interval_strict(
left,
right,
include_left=include_left,
include_right=include_right,
)


Expand Down Expand Up @@ -173,4 +176,9 @@ def simplest_from_float(x: float) -> fractions.Fraction:
raise ValueError("x should be finite")

left, right, closed = _interval_rounding_to(x)
return _simplest_in_interval(left, right, include_left=closed, include_right=closed)
return simplest_in_interval_strict(
left,
right,
include_left=closed,
include_right=closed,
)
4 changes: 3 additions & 1 deletion src/simplefractions/_simplest_in_interval.py
Original file line number Diff line number Diff line change
Expand Up @@ -145,7 +145,7 @@ def _simplest_in_interval_pos(
return a + b, c + d


def _simplest_in_interval(
def simplest_in_interval_strict(
left: fractions.Fraction | None = None,
right: fractions.Fraction | None = None,
*,
Expand All @@ -155,6 +155,8 @@ def _simplest_in_interval(
"""
Simplest fraction in a subinterval of the real line.

Strictly-typed version: both left and right must be fractions.Fraction instances.

Parameters
----------
left : fractions.Fraction, optional
Expand Down