Update minimum Python version to 3.8

I want to use the f"{foo=}" f-string feature.

Author: ctrueden

.github/workflows/build.yml

@@ -22,7 +22,6 @@ jobs:
           macos-latest
         ]
         python-version: [
-          '3.7',
           '3.8',
           '3.9',
           '3.10'

dev-environment.yml

@@ -19,7 +19,7 @@ channels:
   - conda-forge
   - defaults
 dependencies:
-  - python >= 3.7
+  - python >= 3.8
   # Project dependencies
   - jpype1 >= 1.3.0
   - jgo

environment.yml

@@ -20,7 +20,7 @@ channels:
   - conda-forge
   - defaults
 dependencies:
-  - python >= 3.7
+  - python >= 3.8
   # Project dependencies
   - jpype1 >= 1.3.0
   - jgo

pyproject.toml

@@ -16,7 +16,6 @@ classifiers = [
     "Intended Audience :: Education",
     "Intended Audience :: Science/Research",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
@@ -31,7 +30,7 @@ classifiers = [
 ]
 
 # NB: Keep this in sync with environment.yml AND dev-environment.yml!
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 dependencies = [
     "jpype1 >= 1.3.0",
     "jgo",
@@ -77,7 +76,7 @@ exclude = ["bin", "build", "dist"]
 extend-ignore = ["E203"]
 # See https://black.readthedocs.io/en/stable/guides/using_black_with_other_tools.html#flake8
 max-line-length = 88
-min_python_version = "3.7"
+min_python_version = "3.8"
 
 [tool.isort]
 profile = "black"

src/scyjava/_versions.py

@@ -3,7 +3,7 @@
 """
 
 import logging
-from importlib.util import find_spec
+from importlib.metadata import version
 
 from ._java import isjava, jimport
 
@@ -32,20 +32,7 @@ def get_version(java_class_or_python_package) -> str:
         return str(VersionUtils.getVersion(java_class_or_python_package))
 
     # Assume we were given a Python package name.
-
-    if find_spec("importlib.metadata"):
-        # Fastest, but requires Python 3.8+.
-        from importlib.metadata import version
-
-        return version(java_class_or_python_package)
-
-    if find_spec("pkg_resources"):
-        # Slower, but works on Python 3.7.
-        from pkg_resources import get_distribution
-
-        return get_distribution(java_class_or_python_package).version
-
-    raise RuntimeError("Cannot determine version! Is pkg_resources installed?")
+    return version(java_class_or_python_package)
 
 
 def is_version_at_least(actual_version: str, minimum_version: str) -> bool: