I changed the license from WTFPLv2 to MIT.

COPYING

@@ -1,13 +1,21 @@
-            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
-                    Version 2, December 2004
+The MIT License
 
- Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+Copyright (c) 2020 Alexander "Arav" Andreev <me@arav.top>
 
- Everyone is permitted to copy and distribute verbatim or modified
- copies of this license document, and changing it is allowed as long
- as the name is changed.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
-            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
 
-  0. You just DO WHAT THE FUCK YOU WANT TO.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

piggybank/__init__.py

@@ -3,17 +3,15 @@ __all__ = ["__date__", "__version__", "__author__", "__email__",
            "VERSION"]
 
 
-__date__ = "7 June 2020"
+__date__ = "30 June 2020"
 __version__ = "1.0.0"
 __author__ = "Alexander \"Arav\" Andreev"
 __email__ = "me@arav.top"
 __copyright__ = f"Copyright (c) 2020 {__author__} <{__email__}>"
 __license__ = \
-"""This program is free software. It comes without any warranty, to
-the extent permitted by applicable law. You can redistribute it
-and/or modify it under the terms of the Do What The Fuck You Want
-To Public License, Version 2, as published by Sam Hocevar. See
-http://www.wtfpl.net/ for more details."""
+"""This program is licensed under the terms of the MIT license.
+For a copy see COPYING file in a directory of the program, or 
+see <https://opensource.org/licenses/MIT>"""
 
 
 PIGGYBANK_FILE_EXTENSION = ".pb"

setup.cfg

@@ -13,14 +13,14 @@ keywords =
     coins
     piggy bank
     savings
-license = WTFPL 2.0
+license = MIT
 license_file = COPYING
 platforms = any
 classifiers =
     Development Status :: 5 - Production/Stable
     Environment :: Console
     Intended Audience :: End Users/Desktop
-    License :: Public Domain
+    License :: OSI Approved :: MIT License
     Natural Language :: English
     Operating System :: OS Independent
     Programming Language :: Python