Add ParserSyntaxError as the cause of Invalid{Requirement/Marker}

This ensures that these error tracebacks correctly describe the causality between the two errors.
pypa · Dec 7, 2022 · 8cba45c · 8cba45c
1 parent 7930b73
commit 8cba45c
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/packaging/markers.py b/packaging/markers.py
@@ -207,7 +207,7 @@ def __init__(self, marker: str) -> None:
             #     ]
             # ]
         except ParserSyntaxError as e:
-            raise InvalidMarker(str(e))
+            raise InvalidMarker(str(e)) from e
 
     def __str__(self) -> str:
         return _format_marker(self._markers)

diff --git a/packaging/requirements.py b/packaging/requirements.py
@@ -34,7 +34,7 @@ def __init__(self, requirement_string: str) -> None:
         try:
             parsed = parse_requirement(requirement_string)
         except ParserSyntaxError as e:
-            raise InvalidRequirement(str(e))
+            raise InvalidRequirement(str(e)) from e
 
         self.name: str = parsed.name
         if parsed.url: