Drop support for Python < 3.9

Signed-off-by: Stephen Finucane <[email protected]>

Author: stephenfin

setup.py

@@ -33,7 +33,6 @@
         "sphinx-mdinclude >= 0.5.2",
         "picobox >= 2.2",
         "deepmerge >= 0.1",
-        "importlib-metadata; python_version < '3.8'",
     ],
     project_urls={
         "Documentation": "https://sphinxcontrib-openapi.readthedocs.io/",
@@ -55,5 +54,5 @@
         "Framework :: Sphinx",
         "Framework :: Sphinx :: Extension",
     ],
-    python_requires=">=3.7",
+    python_requires=">=3.9",
 )

sphinxcontrib/openapi/__init__.py

@@ -9,10 +9,7 @@
     :license: BSD, see LICENSE for details.
 """
 
-try:
-    from importlib.metadata import distribution, PackageNotFoundError
-except ImportError:  # python < 3.8
-    from importlib_metadata import distribution, PackageNotFoundError
+from importlib.metadata import distribution, PackageNotFoundError
 
 from sphinxcontrib.openapi import renderers, directive