However, the LICENSE file in fancycompleter is not preserved by this fork. You need to preserve the copyright notice and list of conditions as per that 3-Clause BSD license.
The start of that license says:
Copyright (c) 2008, Antonio Cuni and others
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
Please re-instate the original author's copyright notice and license.
In README.md you say:
"tabcompleter is a friendly fork of the (unmaintained) fancycompleter package."
However, the LICENSE file in fancycompleter is not preserved by this fork. You need to preserve the copyright notice and list of conditions as per that 3-Clause BSD license.
The start of that license says:
Please re-instate the original author's copyright notice and license.
CC @antocuni, @blueyed