Move mousebender files to the _vendored/ directory

.pre-commit-config.yaml

@@ -1,7 +1,7 @@
 default_language_version:
   python: "3.12"
 
-exclude: (^micropip/externals|^tests/vendored|^tests/test_data)
+exclude: (^micropip/_vendored|^tests/vendored|^tests/test_data)
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: "v5.0.0"

micropip/package_index.py

@@ -11,9 +11,9 @@
 
 from ._compat import HttpStatusError, fetch_string_and_headers
 from ._utils import is_package_compatible, parse_version
+from ._vendored.mousebender.simple import from_project_details_html
 from ._vendored.packaging.src.packaging.utils import InvalidWheelFilename
 from ._vendored.packaging.src.packaging.version import InvalidVersion, Version
-from .externals.mousebender.simple import from_project_details_html
 from .types import DistributionMetadata
 from .wheelinfo import WheelInfo
 

pyproject.toml

@@ -40,7 +40,7 @@ build-backend = "setuptools.build_meta"
 write_to = "micropip/_version.py"
 
 [tool.ruff]
-exclude = ["micropip/externals"]
+exclude = ["micropip/_vendored/"]
 line-length = 120
 lint.select = [
   "B",     # bugbear