shiboken_tool.py is installed to a wrong path and doesn't work

def main():
    # The tools listed as entrypoints in setup.py are copied to 'scripts/..'
    cmd = os.path.join("..", os.path.basename(sys.argv[0]))
    command = [os.path.join(os.path.dirname(os.path.realpath(__file__)), cmd)]
    command.extend(sys.argv[1:])
    sys.exit(subprocess.call(command))

# shiboken6 setuptools entry point
install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/../shiboken_tool.py
        DESTINATION bin

$ shiboken_tool.py  
Traceback (most recent call last):
...
FileNotFoundError: [Errno 2] No such file or directory: '/usr/bin/../shiboken_tool.py'