Merge pull request #1608 from Anselmoo/Anselmoo/issue1607

build: 🔒 Warning for the end of support for `Python 3.8` is approaching

Author: Anselmoo

spectrafit/__init__.py

@@ -3,6 +3,25 @@
 !!! info "About Versioning"
 
     SpectraFit uses [Semantic Versioning](https://semver.org/).
+
+!!! warning "About Python Versions"
+
+    Currently, SpectraFit only supports Python 3.8 and above. Soon, Python 3.8
+    will be deprecated in favor of Python 3.9 and above, see also
+    [Release Schedule](https://devguide.python.org/versions/#end-of-life-branches).
 """
 
+import sys
+import warnings
+
+
+if sys.version_info[:2] == (3, 8):
+    warnings.warn(
+        "Support for Python 3.8 is approaching its end-of-life. "
+        "Please consider upgrading to Python 3.9 or newer. "
+        "For more details, see: "
+        "https://devguide.python.org/versions/#end-of-life-branches.",
+        DeprecationWarning,
+    )
+
 __version__ = "1.0.4"