Don't panic on invalid version status

build_docs.py

@@ -111,11 +111,13 @@ def from_json(cls, data: dict) -> Versions:
             status = release["status"]
             status = Version.SYNONYMS.get(status, status)
             if status not in Version.STATUSES:
-                msg = (
-                    f"Saw invalid version status {status!r}, "
-                    f"expected to be one of {permitted}."
+                logging.warning(
+                    "Saw invalid version status %r, expected to be one of %s. Context: %s",
+                    status,
+                    permitted,
+                    release,
                 )
-                raise ValueError(msg)
+                continue
             versions.append(Version(name=name, status=status, branch_or_tag=branch))
 
         return cls(sorted(versions, key=Version.as_tuple))

tests/test_build_docs_versions.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+import logging
+
 import pytest
 
 from build_docs import Version, Versions
@@ -57,17 +59,19 @@ def test_from_json() -> None:
     ]
 
 
-def test_from_json_error() -> None:
+def test_from_json_warning(caplog) -> None:
     # Arrange
     json_data = {"2.8": {"branch": "2.8", "pep": 404, "status": "ex-release"}}
 
-    # Act / Assert
-    with pytest.raises(
-        ValueError,
-        match="Saw invalid version status 'ex-release', expected to be one of",
-    ):
+    # Act
+    with caplog.at_level(logging.WARNING):
         Versions.from_json(json_data)
 
+    # Assert
+    assert (
+        "Saw invalid version status 'ex-release', expected to be one of" in caplog.text
+    )
+
 
 def test_current_stable(versions) -> None:
     # Act