Update minimal python version (#2956)

* Update minimal version

* Add info in pyproject.toml

Author: germa89

pyproject.toml

@@ -8,7 +8,7 @@ name = "ansys-mapdl-core"
 version = "0.69.dev0"
 description = "A Python wrapper for Ansys MAPDL."
 readme = "README.md"
-requires-python = ">=3.9,<3.13"
+requires-python = ">=3.9,<3.13"  # Update also 'MINIMUM_PYTHON_VERSION' in src/ansys/mapdl/core/__init__.py
 license = {file = "LICENSE"}
 authors = [
     {name = "Ansys, Inc.", email = "[email protected]"},

src/ansys/mapdl/core/__init__.py

@@ -36,7 +36,7 @@
     os.makedirs(USER_DATA_PATH)
 
 DEPRECATING_MINIMUM_PYTHON_VERSION = True
-MINIMUM_PYTHON_VERSION = (3, 8)
+MINIMUM_PYTHON_VERSION = (3, 9)
 
 first_time_file = os.path.join(USER_DATA_PATH, ".firstime")
 if not os.path.exists(first_time_file):  # pragma: no cover