Deprecate python 3.6 and 3.7

Author: ppizarror

README.rst

@@ -14,9 +14,9 @@ pygame-menu
     :target: https://opensource.org/licenses/MIT
     :alt: License MIT
 
-.. image:: https://img.shields.io/badge/python-3.6+-red.svg
+.. image:: https://img.shields.io/badge/python-3.8+-red.svg
     :target: https://www.python.org/downloads
-    :alt: Python 3.6+
+    :alt: Python 3.8+
 
 .. image:: https://img.shields.io/badge/pygame-1.9.3%2B%2F2.0%2B-orange
     :target: https://www.pygame.org

pygame_menu/menu.py

@@ -247,9 +247,9 @@ def __init__(
         assert not hasattr(pygame, 'get_init') or pygame.get_init(), \
             'pygame is not initialized'
 
-        # Assert python version is greater than 3.6
-        assert sys.version_info >= (3, 6, 0), \
-            'pygame-menu only supports python equal or greater than version 3.6.0'
+        # Assert python version is greater than 3.8
+        assert sys.version_info >= (3, 8, 0), \
+            'pygame-menu only supports python equal or greater than version 3.8.0'
 
         # Column/row asserts
         assert columns >= 1, \

setup.py

@@ -63,8 +63,6 @@
         'License :: OSI Approved :: MIT License',
         'Natural Language :: English',
         'Operating System :: OS Independent',
-        'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
@@ -78,7 +76,7 @@
     ],
     include_package_data=True,
     packages=find_packages(exclude=['test']),
-    python_requires='>=3.6, <4',
+    python_requires='>=3.8, <4',
     install_requires=requirements,
     extras_require={
         'docs': ['sphinx<7', 'sphinx-autodoc-typehints>=1.2.0', 'sphinx-rtd-theme'],