Note that Python 2.x is no longer supported (fixes #91)

Author: JoshData

CHANGELOG.md

@@ -4,7 +4,7 @@ Version 1.3.0 (September 18, 2022)
 * Deliverability checks now check for 'v=spf1 -all' SPF records as a way to reject more bad domains.
 * Special use domain names now raise EmailSyntaxError instead of EmailUndeliverableError since they are performed even if check_deliverability is off.
 * New module-level attributes are added to override the default values of the keyword arguments and the special-use domains list.
-* The keyword arguments of the public methods are now marked as keyword-only.
+* The keyword arguments of the public methods are now marked as keyword-only, ending support for Python 2.x.
 * [pyIsEmail](https://github.com/michaelherold/pyIsEmail)'s test cases are added to the tests.
 * Recommend that check_deliverability be set to False for validation on login pages.
 * Added an undocumented globally_deliverable option.

README.md

@@ -252,13 +252,14 @@ part is converted to [IDNA ASCII](https://tools.ietf.org/html/rfc5891).
 (You probably should not do this at account creation time so you don't
 change the user's login information without telling them.)
 
-### UCS-4 support required for Python 2.7
+### Support for Python 2.7
 
-This library hopefully still works with Python 2.7.
-Note that when using Python 2.7, it is required that it was built with
+The last version of this library supporting Python 2.x is version 1.2.1.
+
+When using Python 2.x, it is required that it was built with
 UCS-4 support (see
-[here](https://stackoverflow.com/questions/29109944/python-returns-length-of-2-for-single-unicode-character-string));
-otherwise emails with unicode characters outside of the BMP (Basic
+[here](https://stackoverflow.com/questions/29109944/python-returns-length-of-2-for-single-unicode-character-string)).
+Without UCS-4 support, unicode characters outside of the BMP (Basic
 Multilingual Plane) will not validate correctly.
 
 Normalization

setup.cfg

@@ -13,8 +13,6 @@ classifiers =
     Development Status :: 5 - Production/Stable
     Intended Audience :: Developers
     License :: CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
-    Programming Language :: Python :: 2
-    Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
@@ -28,7 +26,7 @@ packages = find:
 install_requires =
     dnspython>=1.15.0
     idna>=2.0.0
-python_requires = >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*
+python_requires = >=3.5
 
 [options.entry_points]
 console_scripts =