fix: require sorted tags in strict mode

Signed-off-by: Henry Schreiner <henryfs@princeton.edu>

Author: henryiii

docs/filenames.rst

@@ -3,6 +3,8 @@ Filenames
 
 Tools to work with filenames for SDists and wheels.
 
+.. versionadded:: 26.1
+
 Reference
 ---------
 

src/packaging/filenames.py

@@ -383,11 +383,17 @@ def from_filename(cls, filename: str, /, *, strict: bool) -> WheelFilename:
                 inner = f"non-normalized project name {self.original_name!r}"
                 msg = f"Invalid wheel filename ({inner}): {filename!r}"
                 raise InvalidWheelFilename(msg)
+
             if self.original_version != str(self.version):
                 inner = f"non-normalized version {self.original_version!r}"
                 msg = f"Invalid wheel filename ({inner}): {filename!r}"
                 raise InvalidWheelFilename(msg)
 
+            if self.compressed_tags != parts[-1]:
+                inner = f"non-normalized tags {parts[-1]!r}"
+                msg = f"Invalid wheel filename ({inner}): {filename!r}"
+                raise InvalidWheelFilename(msg)
+
         return self
 
 

tests/test_filenames.py

@@ -131,6 +131,23 @@ def test_sdist_from_filename_invalid(filename: str, error_message: str) -> None:
             (1000, "abc"),
             {Tag("py3", "none", "any")},
         ),
+        (
+            "foo-1.0-py2.py3-none-any.whl",  # Sorted multiple interpreter tags
+            "foo",
+            Version("1.0"),
+            (),
+            {Tag("py2", "none", "any"), Tag("py3", "none", "any")},
+        ),
+        (  # Sorted multiple platform tags
+            "numpy-1.23.3-cp310-cp310-manylinux2014_x86_64.manylinux_2_17_x86_64.whl",
+            "numpy",
+            Version("1.23.3"),
+            (),
+            {
+                Tag("cp310", "cp310", "manylinux2014_x86_64"),
+                Tag("cp310", "cp310", "manylinux_2_17_x86_64"),
+            },
+        ),
     ],
 )
 def test_wheel_from_filename(
@@ -183,6 +200,16 @@ def test_wheel_from_filename(
             "foo-01.0-py3-none-any.whl",  # Non-normalized version
             "Invalid wheel filename (non-normalized version '01.0')",
         ),
+        (  # Unsorted interpreter tags (py3 before py2)
+            "foo-1.0-py3.py2-none-any.whl",
+            "Invalid wheel filename (non-normalized tags 'py3.py2-none-any')",
+        ),
+        (
+            # Unsorted platform tags (manylinux_ before manylinux2014)
+            "numpy-1.23.3-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl",
+            "Invalid wheel filename (non-normalized tags "
+            "'cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64')",
+        ),
     ],
 )
 def test_wheel_from_filename_invalid(filename: str, error_message: str) -> None: