Improve some error messages

2021-10-28 01:16:22 -07:00
parent 644581ed3c
commit 1c4d5d79f7
2 changed files with 8 additions and 3 deletions
@@ -160,10 +160,12 @@ def _pages_from_ranges(ranges: str) -> Set[int]:
            try:
                new_pages = list(range(int(start) - 1, int(end)))
                if not new_pages:
-                    raise BadArgsError(f"invalid page subrange '{start}-{end}'")
+                    raise BadArgsError(
+                        f"invalid page subrange '{start}-{end}'"
+                    ) from None
                pages.extend(new_pages)
            except ValueError:
-                raise BadArgsError("invalid page range") from None
+                raise BadArgsError(f"invalid page subrange '{g}'") from None

    if not pages:
        raise BadArgsError(