Remove a python 3.7 import work-around

octodns/manager.py

@@ -5,6 +5,8 @@
 from collections import deque
 from concurrent.futures import ThreadPoolExecutor
 from importlib import import_module
+from importlib.metadata import PackageNotFoundError
+from importlib.metadata import version as module_version
 from logging import getLogger
 from os import environ
 from sys import stdout
@@ -19,18 +21,6 @@ from .record import Record
 from .yaml import safe_load
 from .zone import Zone
 
-# TODO: this can go away once we no longer support python 3.7
-try:  # pragma: no cover
-    from importlib.metadata import PackageNotFoundError
-    from importlib.metadata import version as module_version
-except ModuleNotFoundError:  # pragma: no cover
-
-    class PackageNotFoundError(Exception):
-        pass
-
-    def module_version(*args, **kargs):
-        raise PackageNotFoundError('placeholder')
-
 
 class _AggregateTarget(object):
     id = 'aggregate'

setup.py

@@ -99,7 +99,7 @@ setup(
     long_description_content_type='text/markdown',
     name='octodns',
     packages=find_packages(),
-    python_requires='>=3.6',
+    python_requires='>=3.8',
     tests_require=tests_require,
     url='https://github.com/octodns/octodns',
     version=version(),