Don't raise OverflowError for ints larger than a float

src/humanize/number.py

@@ -133,7 +133,7 @@ def ordinal(value: NumberOrString, gender: str = "male") -> str:
         if not math.isfinite(float(value)):
             return _format_not_finite(float(value))
         value = int(value)
-    except (TypeError, ValueError):
+    except (TypeError, ValueError, OverflowError):
         return str(value)
     gender = "male" if gender == "male" else "female"
     digit = 0 if value % 100 in (11, 12, 13) else value % 10
@@ -261,7 +261,7 @@ def intword(value: NumberOrString, format: str = "%.1f") -> str:
         if not math.isfinite(float(value)):
             return _format_not_finite(float(value))
         value = int(value)
-    except (TypeError, ValueError):
+    except (TypeError, ValueError, OverflowError):
         return str(value)
 
     if value < 0:
@@ -332,7 +332,7 @@ def apnumber(value: NumberOrString) -> str:
         if not math.isfinite(float(value)):
             return _format_not_finite(float(value))
         value = int(value)
-    except (TypeError, ValueError):
+    except (TypeError, ValueError, OverflowError):
         return str(value)
     if not 0 <= value < 10:
         return str(value)
@@ -384,7 +384,7 @@ def fractional(value: NumberOrString) -> str:
         number = float(value)
         if not math.isfinite(number):
             return _format_not_finite(number)
-    except (TypeError, ValueError):
+    except (TypeError, ValueError, OverflowError):
         return str(value)
     from fractions import Fraction
 
@@ -447,7 +447,7 @@ def scientific(value: NumberOrString, precision: int = 2) -> str:
         value = float(value)
         if not math.isfinite(value):
             return _format_not_finite(value)
-    except (ValueError, TypeError):
+    except (ValueError, TypeError, OverflowError):
         return str(value)
     fmt = f"{{:.{int(precision)}e}}"
     n = fmt.format(value)
@@ -571,8 +571,12 @@ def metric(value: float, unit: str = "", precision: int = 3) -> str:
     """
     import math
 
-    if not math.isfinite(value):
-        return _format_not_finite(value)
+    try:
+        if not math.isfinite(value):
+            return _format_not_finite(value)
+    except OverflowError:
+        # An int too large for float() is still a valid number.
+        return str(value)
     exponent = math.floor(math.log10(abs(value))) if value != 0 else 0
 
     if exponent >= 33 or exponent < -30:

tests/test_number.py

@@ -377,3 +377,19 @@ def test_clamp(test_args: list[typing.Any], expected: str) -> None:
 )
 def test_metric(test_args: list[typing.Any], expected: str) -> None:
     assert humanize.metric(*test_args) == expected
+
+
+@pytest.mark.parametrize(
+    "function",
+    [
+        humanize.apnumber,
+        humanize.intword,
+        humanize.ordinal,
+        humanize.metric,
+        humanize.scientific,
+        humanize.fractional,
+    ],
+)
+def test_large_int_does_not_overflow(function: typing.Callable[[int], str]) -> None:
+    value = 10**400
+    assert function(value) == str(value)